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    Analytical Design Method of Multiway Dual-Band Planar Power Dividers With Arbitrary Power Division

    Yongle Wu ; Yuanan Liu ; Quan Xue ; Shulan Li ; Cuiping Yu
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 58 , Issue: 12 , Part: 1
    DOI: 10.1109/TMTT.2010.2086712
    Publication Year: 2010 , Page(s): 3832 - 3841
    Cited by:  Papers (9)

    IEEE Journals & Magazines

    In this paper, a novel closed-form design method of generalized Wilkinson power dividers is proposed. By using this method, the power divider could be designed to be arbitrary-way (N-way) with arbitrary power division, and arbitrary dual-band operations in a pure planar structure. A previous dual-band unequal Wilkinson power divider is extended to arbitrary terminal impedances case, thus, it can be used to construct multiway planar power dividers through the combination of the two-section dual-frequency transformers. To obtain three-way (or any odd-way) power dividers with dual-band and unequal power division features, a new developed recombinant structure is employed. This recombinant structure consists of a two-way dual-band unequal power divider/combiner without any isolation structures. Furthermore, the complete design procedures and analytical equations of these proposed generalized power dividers are presented. To verify our proposed design approach in theory, several three-way and four-way power dividers with different dual-band applications and various power divisions are designed and simulated. Finally, a practical three-way power divider operating at both 0.6 and 2.45 GHz with a power dividing ratio of 3:5:1 is fabricated in microstrip technology as a typical example. The measured results of the fabricated power divider verify our proposed idea. View full abstract»

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    A Parallel-Strip Ring Power Divider With High Isolation and Arbitrary Power-Dividing Ratio

    Leung Chiu ; Quan Xue
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 55 , Issue: 11
    DOI: 10.1109/TMTT.2007.908669
    Publication Year: 2007 , Page(s): 2419 - 2426
    Cited by:  Papers (24)

    IEEE Journals & Magazines

    In this paper, a new power divider concept, which provides high flexibility of transmission line characteristic impedance and port impedance, is proposed. This power divider is implemented on a parallel-strip line, which is a balanced transmission line. By implementing the advantages and uniqueness of the parallel-strip line, the divider outperforms the conventional divider in terms of isolation bandwidths. A swap structure of the two lines of the parallel-strip line is employed in this design, which is critical for the isolation enhancements. A lumped-circuit model of the parallel-strip swap including all parasitic effects has been analyzed. An equal power divider with center frequency of 2 GHz was designed to demonstrate the idea. The experimental results show that the equal power divider has 96.5% -10-dB impedance bandwidth with more than 25-dB isolation and less than 0.7-dB insertion loss. In order to generalize the concept with an arbitrary power ratio, we also realize unequal power dividers with the same isolation characteristics. The impedance bandwidth of the proposed power divider will increase with the dividing ratio, which is opposite to the conventional Wilkinson power divider. Unequal dividers with dividing ratios of 1 : 2 and 1 : 12 are designed and measured. Additionally, a frequency independent 180 power divider has been realized with less than 2 phase errors. View full abstract»

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    A novel Gysel power divider with arbitrary power ratio for high-power application

    Zhang Haiwei ; Xue Quan
    Wireless Symposium (IWS), 2013 IEEE International

    DOI: 10.1109/IEEE-IWS.2013.6616719
    Publication Year: 2013 , Page(s): 1 - 4

    IEEE Conference Publications

    A novel Gysel power divider with arbitrary power ratio for high-power application is presented in this paper. The power dividing ratio can be conveniently assigned by controlling the length of two branch lines without any changes in other branches. The characteristics of all the transmission lines in this divider are fixed to the same value based on the theoretical analysis, which will simplify the design procedure of unequal Gysel power. Besides, the power ratio in this Gysel power divider can be designed from 0 to ∞ without employing high impedance transmission line, which is unrealized in the conventional Gysel power divider. In order to evaluate the performance of the novel Gysel power divider, two dividers with dividing ratios of 2:1 and 4:1 are fabricated and examined. From the results it can be observed that there is excellent agreement between the simulated and measured results. View full abstract»

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    Wilkinson topology-based 1:6 power divider for L-band frequency application

    Pribawa, N.A. ; Munir, A.
    Telecommunication Systems, Services, and Applications (TSSA), 2012 7th International Conference on

    DOI: 10.1109/TSSA.2012.6366054
    Publication Year: 2012 , Page(s): 215 - 217

    IEEE Conference Publications

    In this paper, a 1:6 power divider to work at L-band frequency application is proposed. The power divider which is intended to divide or split a signal power from a device into some other devices is designed based on a Wilkinson topology and developed using microstrip technology. The proposed power divider is comprised of 2 stages; the first stage is 1:2 power divider, whereas the second stage consists of 1 pair of other 2 Wilkinson topology power dividers with the extension to 3 output ports. The design of power divider is deployed on an Arlon DiClad527™ dielectric substrate with relative permittivity of 2.5 and thickness of 1.6mm. From the design result, it shows that the proposed power divider demonstrates a good performance in the desired frequency range with the insertion loss of 7.8dB for frequency range from 1GHz to 2GHz, the return loss less than 12.3dB at frequency of 1.5GHz, the isolation less than 12.8dB at frequency of 1.5GHz. View full abstract»

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    Three-port E-plane bifurcated waveguide power divider at millimeter-wave frequencies

    Yan-Shen Liu ; Dow-Chih Niu ; Li, E.S.
    Microwave Conference Proceedings (APMC), 2012 Asia-Pacific

    DOI: 10.1109/APMC.2012.6421804
    Publication Year: 2012 , Page(s): 998 - 100
    Cited by:  Papers (2)

    IEEE Conference Publications

    The function of power divider is to divide to power from one input port into the divided power at multiple output ports, or to combine the power from multiple ports into the combined power at one output port. The goal of this study is to design a millimeter-wave power divider operating at the range from 32 GHz to 34 GHz. The return loss at each port and the isolation between from output ports are required to be greater than 15 dB. The insertion loss need to be less than 3.1 dB. The concept of E-plane bifurcated waveguide is proposed to implement this millimeter-wave power divider because of the concerns about operation at high-frequencies and high-power handling, capacity. A resistive film is placed inside the bifurcated waveguide in order to meet the specifications of the proposed power divider. In addition, impedance transformation is employed at output ports to convert the output waveguide to standard waveguide. View full abstract»

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    A Compact Gysel Power Divider With Unequal Power-Dividing Ratio Using One Resistor

    Xi Wang ; Ke-Li Wu ; Wen-Yan Yin
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 62 , Issue: 7
    DOI: 10.1109/TMTT.2014.2326841
    Publication Year: 2014 , Page(s): 1480 - 1486
    Cited by:  Papers (1)

    IEEE Journals & Magazines

    A novel compact Gysel power divider is proposed and investigated in this paper. The proposed power divider consists of two transmission lines, a pair of coupled lines, and only one grounded resistor for unequal power-dividing ratio. Comparing to the conventional Gysel power divider, the new power divider saves its space by eliminating the 180 ° electrical length transmission line and reduces complicity by using one grounded resistor. The flexibility in choosing the value of the resistor provides favorable freedom in circuit realization. In addition, analytic design formulas of the proposed power divider, for both equal and unequal ratio cases, are given. For the equal radio case, two grounded resistors are required. Two prototype power dividers are simulated, fabricated, and measured. Both prototypes operate at 2 GHz, but with different power divisions, one for power division ratio k = 1 and the other for k = 2. There are good correlation between the measured results and those of the theoretically designed, justifying the circuit configuration and the design theory. View full abstract»

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    A novel compact Gysel power divider with harmonic suppression

    Malakooti, S.-A. ; Siahkamari, H. ; Afzali, B.
    Electrical Engineering (ICEE), 2014 22nd Iranian Conference on

    DOI: 10.1109/IranianCEE.2014.6999808
    Publication Year: 2014 , Page(s): 1678 - 1683

    IEEE Conference Publications

    This paper presents a new design of a compact Gysel power divider with harmonic suppression. The proposed design has simple layout with four additional stubs added to the conventional Gysel power divider structure. Moreover, exact closed-form equations are obtained based on even- and odd-mode analysis. For demonstration, a microstrip implementation of the proposed design operating at 1 GHz with the second to sixth harmonic suppression and 58% size reduction compared to the conventional Gysel power divider is developed. Simulation and measurement results show good insertion loss, return loss, isolation, and wide stopband bandwidth, while maintaining highpower handling capability over the Wilkinson power divider. View full abstract»

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    A Novel CMOS 24-GHz In-Phase Power Divider Using Synthetic Coupled Lines

    Sen Wang ; Meng-Ju Chiang ; Chun-Tuan Chang
    Components, Packaging and Manufacturing Technology, IEEE Transactions on

    Volume: 5 , Issue: 3
    DOI: 10.1109/TCPMT.2015.2401039
    Publication Year: 2015 , Page(s): 398 - 403

    IEEE Journals & Magazines

    A novel in-phase power divider using two synthetic coupled lines (CLs) and one isolation resistor is presented. The synthetic transmission lines (TLs) so-called the complementary-conducting-strip CL consists of periodical structures. By adopting the meandered and edge-coupled TLs the design reveals a two-way power divider and features a wideband behavior with a compact chip size. Moreover, the power divider also provides a 0° phase difference between input and output ports at 24 GHz. The chip is fabricated in a standard 0.18-μm CMOS technology with a core area of 30 μm × 30 μm. Measurements show that the minimum insertion losses (|S21| and |S31|) of the power divider are 5.38 and 5.43 dB at 23.5 GHz, respectively. Moreover, the power divider can operate from 15 to 28 GHz with superior RF performances on return losses and isolation. View full abstract»

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    An Analytical Approach for a Novel Coupled-Line Dual-Band Wilkinson Power Divider

    Yongle Wu ; Yuanan Liu ; Quan Xue
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 59 , Issue: 2
    DOI: 10.1109/TMTT.2010.2084096
    Publication Year: 2011 , Page(s): 286 - 294
    Cited by:  Papers (27)

    IEEE Journals & Magazines

    A novel generalized coupled-line circuit structure for a dual-band Wilkinson power divider is proposed. The proposed power divider is composed of two coupled lines with different even- and odd-mode characteristic impedances and two lumped resistors. Using rigorous even- and odd-mode analysis, the analytical design equations for this proposed power divider are obtained and the ideal closed-form scattering parameters are constructed. Since the traditional transmission line is a special case of coupled line (coupled coefficient is zero), it is found that traditional noncoupled-line dual-band (including single band) Wilkinson power dividers and previous dual-band coupled-line power dividers are special cases of this generalized power divider. As a typical example, which could only be designed by using this given design equations, a compact microstrip 3-dB power divider operating at both 1.1 and 2.2 GHz is designed, fabricated, and measured. There is good agreement between calculated and measured results. View full abstract»

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    A broad-band printed circuit hybrid ring power divider

    Mikucki, G.F. ; Agrawal, Ashok K.
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 37 , Issue: 1
    DOI: 10.1109/22.20029
    Publication Year: 1989 , Page(s): 112 - 117
    Cited by:  Papers (26)  |  Patents (1)

    IEEE Journals & Magazines

    The design of a broadband ring power divider that provides substantial improvement in coupling and phase characteristics over a wide frequency range compared to that of a conventional hybrid ring is presented. It is shown that the new power divider design can be easily constructed using realizable impedances and is applicable to both equal and unequal power divisions. Experimental verification of the broadband power divider was achieved in a stripline configuration at Ku-band for an equal power divider and a 3-dB power divider. Close agreement was observed between theoretical and experimental results for both of the power dividers. The usable bandwidth of the broadband power divider is approximately 45%. It is concluded that this broadband power divider is particularly suited for a narrowband low-sidelobe antenna array beam-forming network, for it provides substantially improved amplitude and phase characteristics, a requirement for low-sidelobe array antennas, and good isolation between output ports View full abstract»

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    A novel design of ultra-wideband strip-line power divider for 2–18 GHz

    Afanasiev, P.O. ; Sledkov, V.A. ; Manuilov, M.B.
    Antenna Theory and Techniques (ICATT), 2013 IX International Conference on

    DOI: 10.1109/ICATT.2013.6650765
    Publication Year: 2013 , Page(s): 323 - 325
    Cited by:  Papers (1)

    IEEE Conference Publications

    A new modified ultra-wideband in-phase power divider for frequency band 2-18 GHz has been designed, successfully fabricated and tested. The power divider is based on the coupled strip-lines. Only two balanced resistors are used in the proposed structure. So the power divider has very low insertion loss. The capacitive strips placed over the resistors have been introduced in the suggested design as the novel elements. Due to the introduced capacitive strips the isolation and impedance matching of the divider outputs were improved at the high frequencies. The manufactured power divider shows very high measured performances (amplitude imbalance is ±0.2 dB, phase imbalance is 5°, insertion loss is 0.4 dB, isolation is -18 dB, VSWR = 1.5. View full abstract»

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    Optimum Design of Asymmetrical Multisection Two-Way Power Dividers With Arbitrary Power Division and Impedance Matching

    Oraizi, H. ; Sharifi, A.-R.
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 59 , Issue: 6
    DOI: 10.1109/TMTT.2011.2124468
    Publication Year: 2011 , Page(s): 1478 - 1490
    Cited by:  Papers (12)

    IEEE Journals & Magazines

    A general analysis and design procedure is developed for the asymmetrical multisection power divider with arbitrary power division ratio and arbitrary specifications of input and output impedance matching over any desired frequency bandwidth. The even- and odd-mode analysis, which was previously applied to the design of multisection Gysel power dividers, required that the unequal power division ratios be accompanied with appropriately proportional output impedances. This requirement is relaxed here. The equivalent circuits are first obtained for the divider and then their scattering parameters are determined. Some error functions are then constructed by the method of least squares. Their minimization determines the geometrical dimensions of the optimum divider. An approximate method based on the even and odd modes is developed for its initial design of the divider. Two examples of single- and double-section dividers are designed. Their frequency responses of isolation and transmission coefficients are obtained by the proposed method, HFSS software, fabrication, and measurement. They agree within the approximate assumptions. A two-section and two-way power divider is designed and fabricated by the proposed method for the case of unequal port impedances in the L-band. The measured isolation between the outputs is better than -22 dB in 44% of the band. View full abstract»

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    A Ka band balanced amplifier with six-port power divider

    Kiumarsi, H. ; Abdipour, A. ; Abkenari, M.R. ; Moradi, G.
    Microwave Integrated Circuits Conference (EuMIC), 2010 European

    Publication Year: 2010 , Page(s): 349 - 352
    Cited by:  Papers (1)

    IEEE Conference Publications

    In this paper for designing a Ka band balanced amplifier, a novel structure using a six-port power divider is proposed. Using this six-port power divider as a 3dB power divider and combiner, broadband properties and complete symmetric structure can be achieved. The symmetric structure leads to almost zero phase and gain unbalances between output ports of 3dB power dividers. In contrary to the conventional 3dB couplers, zero phase and gain unbalances of the proposed ones give nearly unity input and output VSWR in a balanced amplifier. If single amplifiers have grater bandwidth than the six-port power divider, there will be a critical instability problem in the balanced amplifier which utilizes six-port power divider. The problem was solved by inserting band pass filters in the power divider. So, using these band pass filters within the six-port power divider forms a novel balanced amplifier design which is proposed in this paper. The simulated and measured results are reported. View full abstract»

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    Ultra-Wideband Ring-Cavity Multiple-Way Parallel Power Divider

    Kaijun Song ; Quan Xue
    Industrial Electronics, IEEE Transactions on

    Volume: 60 , Issue: 10
    DOI: 10.1109/TIE.2012.2208441
    Publication Year: 2013 , Page(s): 4737 - 4745
    Cited by:  Papers (4)

    IEEE Journals & Magazines

    A novel ultrawideband (UWB) ring-cavity multiple-way parallel power divider is presented in this paper. The approximated equivalent-circuit model of the power-dividing unit is presented to analyze its structural parameters and electrical performance. The overall circuit model of the proposed power divider is also given. To verify its potential to accommodate large numbers of power-dividing ports, a UWB 32-way ring-cavity power divider is developed with reasonable agreement between the simulated and measured results. The measured return loss is greater than 10 dB over the entire UWB and also greater than 15 dB from 4.2 to 9.2 GHz. The average insertion loss, amplitude imbalance, phase imbalance, and group delay are around 15.4 dB (including the 15-dB power-dividing insertion loss), ±0.7 dB, ±5°, and 0.85 ns, respectively, across the UWB. In addition, the isolations between the output ports are greater than 10 dB over the UWB except for those between the adjacent output ports. View full abstract»

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    Optimum design of a wide band six-port power divider with selectable power division ratios by the method of least squares

    Oraizi, H. ; Moghanni, M.
    Microwaves, Antennas & Propagation, IET

    Volume: 8 , Issue: 12
    DOI: 10.1049/iet-map.2013.0468
    Publication Year: 2014 , Page(s): 943 - 950

    IET Journals & Magazines

    An effective design procedure is devised for the optimum design of a versatile and useful six-port planar microstrip power divider. An equivalent circuit is developed for the divider, which is composed of line sections and asymmetrical T-junctions. The method of least squares is applied to the equivalent circuit of the divider for its optimum design. This power divider is capable of providing various power division ratios for different combinations of the output ports ( e.g. three or two outputs) for the same fixed design configuration. The power divider may then be fine tuned by the full-wave softwares to obtain an optimum design for the divider. The method of least squares may also be used to design power dividers with arbitrary power division ratios at their output ports. A two section six-port divider is fabricated and measured in the S-band (with centre frequency 3 GHz). It has achieved an insertion loss of 0.5 dB, relative bandwidth of 45% (for the four-port application) and 54% (for the three-port application) and isolation among the output ports better than 15 dB. View full abstract»

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    A broadband series power divider using zero-degree metamaterial phase-shifting lines

    Antoniades, M.A. ; Eleftheriades, G.V.
    Microwave and Wireless Components Letters, IEEE

    Volume: 15 , Issue: 11
    DOI: 10.1109/LMWC.2005.859007
    Publication Year: 2005 , Page(s): 808 - 810
    Cited by:  Papers (72)  |  Patents (3)

    IEEE Journals & Magazines

    A metamaterial 1:4 series power divider that provides equal power split to all four output ports over a large bandwidth is presented, which can be extended to an arbitrary number of output ports. The divider comprises four nonradiating metamaterial lines in series, incurring a zero insertion phase over a large bandwidth, while simultaneously maintaining a compact length of λ0/8. Compared to a series power divider employing conventional one-wavelength long meandered transmission lines to provide in-phase signals at the output ports, the metamaterial divider provides a 165% increase in the input return-loss bandwidth and a 155% and 154% increase in the through-power bandwidth to ports 3 and 4, respectively. In addition, the metamaterial divider is significantly more compact, occupying only 2.6% of the area that the transmission line divider occupies. The metamaterial and transmission line dividers exhibit comparable insertion losses. View full abstract»

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    Development of an asymmetric power divider for a high-power RF distribution system at KEK

    Takahashi, T. ; Sakanaka, S. ; Izawa, Masaaki
    Particle Accelerator Conference, 2001. PAC 2001. Proceedings of the 2001

    Volume: 2
    DOI: 10.1109/PAC.2001.986514
    Publication Year: 2001 , Page(s): 891 - 893 vol.2

    IEEE Conference Publications

    We have developed an RF power divider which is used for an RF distribution system in high-energy electron storage rings. This divider has four waveguide ports, and it can split a high RF power by a ratio of 1:2 at an operating frequency of about 508.6 MHz. Other properties are very similar to those of a magic-T. By combining this divider with a conventional magic-T, one can design an RF distribution system in which three cavities are driven by a single klystron. The design procedure of the power divider, a low-power measurement, and a high-power test result are described View full abstract»

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    Compact unequal Wilkinson power divider with large power dividing ratio

    Haidong Chen ; Tianyu Zhang ; Wenquan Che ; Wenjie Feng
    European Microwave Conference (EuMC), 2014 44th

    DOI: 10.1109/EuMC.2014.6986746
    Publication Year: 2014 , Page(s): 1552 - 1555

    IEEE Conference Publications

    A compact unequal Wilkinson power divider with arbitrary power division is analyzed and demonstrated in this paper. The power divider can be designed with arbitrary power division in theory and achieves large power dividing ratio in practice. The proposed structure is compatible with single layer integration by using the normal PCB fabrication process. The complete analytical procedures of the proposed power divider are presented. To verify our proposed design approach in theory, one 11:1 unequal power divider is designed and fabricated. The measured bandwidth at 20 dB return losses is about 6%, while the isolation of the two output ports is better than 20 dB. Good agreement between the measured and simulated amplitude distributions is observed. The phase difference between outputs ports are about ±2.5 degree, over the 10% relative frequency bandwidth. View full abstract»

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    Design of Multiway Power Divider by Using Stepped-Impedance Transformers

    Yansheng Xu ; Bosisio, R.G.
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 60 , Issue: 9
    DOI: 10.1109/TMTT.2012.2207911
    Publication Year: 2012 , Page(s): 2781 - 2790
    Cited by:  Papers (4)

    IEEE Journals & Magazines

    In this paper, the design of multiway power dividers by interconnecting power dividers with fewer output ports is studied by transforming them into multisection stepped-impedance transformers. By using this approach, it is easy to design multiway power dividers with required equal ripples of input reflection (S11 ) within a wide passband. The interconnecting lines can be used as additional matching sections to improve the input matching. General properties of this type of multiway power dividers can be easily obtained. Design of multiway power divider with required input reflection level can be readily performed by using the published data and tables of stepped-impedance transformer in the literature. Both even- and odd-mode analyses are performed to obtain the optimal isolation resistor values. A prototype of a wideband four-way power divider with a rhombic architecture is designed, fabricated, and measured. Simulation and measurement results are in good agreement and validate the proposed approach. View full abstract»

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    Compact unequal Wilkinson power divider with large power dividing ratio

    Haidong Chen ; Tianyu Zhang ; Wenquan Che ; Wenjie Feng
    European Microwave Integrated Circuit Conference (EuMIC), 2014 9th

    DOI: 10.1109/EuMIC.2014.6997930
    Publication Year: 2014 , Page(s): 608 - 611

    IEEE Conference Publications

    A compact unequal Wilkinson power divider with arbitrary power division is analyzed and demonstrated in this paper. The power divider can be designed with arbitrary power division in theory and achieves large power dividing ratio in practice. The proposed structure is compatible with single layer integration by using the normal PCB fabrication process. The complete analytical procedures of the proposed power divider are presented. To verify our proposed design approach in theory, one 11:1 unequal power divider is designed and fabricated. The measured bandwidth at 20 dB return losses is about 6%, while the isolation of the two output ports is better than 20 dB. Good agreement between the measured and simulated amplitude distributions is observed. The phase difference between outputs ports are about ±2.5 degree, over the 10% relative frequency bandwidth. View full abstract»

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    Compact Modified Wilkinson Power Divider With Physical Output Port Isolation

    Wonseok Choe ; Jinho Jeong
    Microwave and Wireless Components Letters, IEEE

    Volume: 24 , Issue: 12
    DOI: 10.1109/LMWC.2014.2303164
    Publication Year: 2014 , Page(s): 845 - 847
    Cited by:  Papers (1)

    IEEE Journals & Magazines

    In this letter, a compact modified n-way Wilkinson power divider that allows physical isolation between output ports is presented. In the proposed power divider, the isolation impedances are positioned within quarter-wave transmission lines so that part of the lines can be used for interconnection and impedance transformation. Theoretical analysis is performed to derive the design equations of the proposed n-way power divider. Further, measurements show that the proposed power divider can reduce the insertion loss and circuit size when compared with a conventional Wilkinson power divider. View full abstract»

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    Compact Microstrip Wilkinson Power Dividers With Harmonic Suppression and Arbitrary Power Division Ratios

    Mirzavand, R. ; Honari, M.M. ; Abdipour, A. ; Moradi, G.
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 61 , Issue: 1 , Part: 1
    DOI: 10.1109/TMTT.2012.2226054
    Publication Year: 2013 , Page(s): 61 - 68
    Cited by:  Papers (5)

    IEEE Journals & Magazines

    This paper describes a new Wilkinson power divider on a single-layer microstrip line that can reduce the occupied area, suppress the harmonic components, and/or provide the arbitrary power division ratios. It consists of two-section transmission lines, two inductors, and one isolation resistor. Four different designs have been conducted to investigate the capabilities of the structure. In addition, a compact divider along with harmonic suppression and a practical divider with a large power-dividing ratio has been constructed and measured. The simulation and measurement results are in good agreement with each other. This indicates that the structure can effectively be used as a power divider for miniaturized or arbitrary power division ratio applications. View full abstract»

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    Recombinant Waveguide Power Divider

    Djerafi, T. ; Patrovsky, A. ; Ke Wu ; Tatu, S.O.
    Microwave Theory and Techniques, IEEE Transactions on

    Volume: 61 , Issue: 11
    DOI: 10.1109/TMTT.2013.2283195
    Publication Year: 2013 , Page(s): 3884 - 3891

    IEEE Journals & Magazines

    In this paper, a substrate integrated waveguide power divider is proposed on the basis of a recombinant topology that provides in-phase power division with an odd or even number of branches. The aim is to generate different types of power distribution to control sidelobe level in the antenna array. In this study, several power-divider designs were designed to demonstrate and validate the design approach. Each design consists of a cascade of steps and nfurcations, which were initially designed based on sinusoidal basis functions. These designs were simulated using the High Frequency Structure Simulator (HFSS) and shown to closely match the performance estimated using the basis functions. A substrate with thickness of 0.508 mm and dielectric constant of 2.94 is used. A three-way power divider with a binominal output taper is optimized and fabricated, showing good results in the bandwidth of interest from 72 to 81 GHz. Measurement results for a 3 × 8 slot array antenna designed in conjunction with the proposed feeding network are presented and discussed. This design can be used to build up rectangular waveguide structures. The novel structure is expected to be useful in building sub-arrays of antenna in the development of millimeter-wave automotive radar systems. View full abstract»

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    Development of an asymmetric power divider for a high-power RF distribution system

    Takahashi, T. ; Sakanaka, Shogo ; Izawa, Masaaki
    Nuclear Science, IEEE Transactions on

    Volume: 48 , Issue: 4 , Part: 3
    DOI: 10.1109/23.958401
    Publication Year: 2001 , Page(s): 1592 - 1597
    Cited by:  Papers (3)

    IEEE Journals & Magazines

    We have developed a radio-frequency (RF) power divider that is used for an RF distribution system in high-energy electron storage rings. This power divider has four waveguide ports, and it can split a high RF power by a ratio of 1:2 at an operating frequency of about 508.6 MHz. Since other properties are very similar to those of a magic-T it is very suitable for accelerator applications. By combining this device with a conventional magic-T, one can design an RF distribution system in which three cavities are driven by a single klystron. The design procedure of the power divider, a low-power measurement, and a high-power test result are presented View full abstract»

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    Novel compact compass navigation system (CNS) power divider

    Li Yuejin ; Xing Mengjiang ; Zhu Zhangming ; Yang Yintang
    Electronic Packaging Technology & High Density Packaging (ICEPT-HDP), 2010 11th International Conference on

    DOI: 10.1109/ICEPT.2010.5582852
    Publication Year: 2010 , Page(s): 710 - 713
    Cited by:  Papers (1)

    IEEE Conference Publications

    Wilkinson power divider with the simple design method and outstanding performance are widely used in RF/microwave front-end transceiver. A novel and simple miniaturized power divider based on equivalent circuits is presented. A bandwidth of 200MHz, the center frequency of 1.616 GHz Compass Navigation System (CNS) multilayer power divider was designed and measured based on Low Temperature Co-fired Ceramic (LTCC) technology. Its performance can be comparable to Wilkinson power divider, with the overall area of 6mm × 6mm × 0.6mm, only one-tenth of the size of the Wilkinson power divider. View full abstract»

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