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# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 25 of 38

Publication Year: 2013, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2013, Page(s): C2
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• ### Transformation Electromagnetics Based Analysis of Waveguides With Random Rough or Periodic Grooved Surfaces

Publication Year: 2013, Page(s):709 - 719
Cited by:  Papers (6)
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A computational model is introduced which employs transformation-based media to increase the computational performance of finite methods (such as finite element or finite difference methods) for analyzing waveguides with grooves or rough surfaces. Random behavior of the roughness is taken into account by utilizing the Monte Carlo technique, which is based on a set of random rough surfaces generate... View full abstract»

• ### Krylov's Solver Based Technique for the Cascade Connection of Multiple n-Port Multimodal Scattering Matrices

Publication Year: 2013, Page(s):720 - 726
Cited by:  Papers (2)
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In this paper, a novel technique for cascading generalized scattering matrices based on a Krylov's iterative solver is presented. This new technique is fully general, since it can be applied to solve the connection of an arbitrary number of networks, each one with an arbitrary number of ports, and it is easy to implement. This technique is able to compute, not only the modal spectra at the free po... View full abstract»

• ### Statistical Analysis of Process Variations in RF/mm-Wave Circuits With On-The-Fly Passive Macro-Modeling

Publication Year: 2013, Page(s):727 - 735
Cited by:  Papers (5)
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Process variations in passive components, e.g., inductors, transformers, baluns, and transmission lines, are increasingly degrading the performance and production yield in RF/mm-wave circuits with technology scaling. Traditional statistical analysis methods are not suitable for RF/mm-wave circuits as time-consuming EM simulation needs to be performed many times. In this paper, a statistical analys... View full abstract»

• ### Spectral Domain Analysis of Open Single and Coupled Microstrip Lines With Polygonal Cross-Section in Bound and Leaky Regimes

Publication Year: 2013, Page(s):736 - 745
Cited by:  Papers (7)
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Aim of this work is the analysis of the propagation of bound and leaky modes in perfectly conducting open single and coupled microstrip lines with polygonal cross-section. The problem is formulated as a new numerically stable one-dimensional electric field integral equation (EFIE) in the spectral domain. Quick convergence is achieved by expanding the unknown surface current density with functions ... View full abstract»

• ### Single-Layer Microstrip High-Directivity Coupled-Line Coupler With Tight Coupling

Publication Year: 2013, Page(s):746 - 753
Cited by:  Papers (22)
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A novel symmetrical coupled-line circuit structure without patterned ground plane is proposed to design tight-coupling high-directivity couplers, which would be found in numerous applications in a microstrip RF front end because of its simple structure and inherent excellent compatibility. Based on a traditional even- and odd-mode technique, closed-form mathematical equations for both circuit elec... View full abstract»

• ### A Lossy Circuit Model Based on Physical Interpretation for Integrated Shielded Slow-Wave CMOS Coplanar Waveguide Structures

Publication Year: 2013, Page(s):754 - 763
Cited by:  Papers (14)
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This paper presents a new physical model for shielded slow-wave coplanar waveguide structures. This lossy electrical model is based on physical behavior of the transmission lines. It allows a better understanding of the losses distribution along the structure. The ohmic losses in the coplanar strips, as well as the ohmic losses and the eddy current losses in the floating shield strips are studied ... View full abstract»

• ### Ultra-Wideband Suppression of SSN Using Localized Topology With CSRRs and Embedded Capacitance in High-Speed Circuits

Publication Year: 2013, Page(s):764 - 772
Cited by:  Papers (6)
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In this paper, an efficient method for mitigating simultaneous switching noise (SSN) propagation in high-speed printed circuit boards (PCBs) is proposed, using localized power plane topologies, where complementary split ring resonators (CSRRs) are partially etched on one metallic layer of the embedded capacitance. The equivalent circuit model of the proposed structure is presented to predict the l... View full abstract»

• ### Complementary Compact Microstrip Resonant Cell and Its Applications to Microwave Single- and Dual-Band Bandpass Filters

Publication Year: 2013, Page(s):773 - 781
Cited by:  Papers (5)
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This paper presents the complementary compact microstrip resonant cell (CCMRC), which behaves as a bandpass filter with good selectivity. Investigations reveal that CCMRC consists of λ/2 and λ/4 resonators. By using the traditional coupled resonator theory, the analysis approach and design guideline are obtained for CCMRC. CCMRC features compact size and transmission zeros (TZs) at t... View full abstract»

• ### Ultra-Wideband Bandpass Filter Based on Composite Right/Left Handed Transmission-Line Unit-Cell

Publication Year: 2013, Page(s):782 - 788
Cited by:  Papers (22)
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This paper presents a novel high performance ultra-wideband (UWB) bandpass filter that satisfies FCC UWB specifications. The filter is based on a composite right/left handed (CRLH) structure consisting of an asymmetric unit-cell with a short circuited inductive stub that exhibits stopband rejection level greater than 25 dB at both the lower and upper band edges while maintaining an insertion-loss ... View full abstract»

• ### Folded Substrate Integrated Waveguide Based Composite Right/Left-Handed Transmission Line and Its Application to Partial $H$ -Plane Filters

Publication Year: 2013, Page(s):789 - 799
Cited by:  Papers (14)
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Composite right/left-handed (CRLH) transmission line structures based on the folded substrate integrated waveguide (FSIW) are presented and discussed in this paper. This FSIW-based CRLH (FSIW-CRLH) transmission line exhibits much lower cut-off frequencies as compared to the ordinary FSIW of the same footprint, and furthermore, it requires only one-half width of the conventional substrate integrate... View full abstract»

• ### A Deterministic EM Design Technique for General Waveguide Dual-Mode Bandpass Filters

Publication Year: 2013, Page(s):800 - 807
Cited by:  Papers (7)  |  Patents (1)
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Circular waveguide dual-mode (CWDM) filters have been widely employed in the manifold-coupled output multiplexer (OMUX) for satellite payloads. In this paper, a deterministic electromagnetic (EM) design technique for fast and accurately computerized prototyping a general CWDM filter is presented. By introducing a generalized K impedance inverter using the generalized scattering matrix of th... View full abstract»

• ### Synthesis Method for Even-Order Symmetrical Chebyshev Bandpass Filters With Alternative $J/K$ Inverters and /spl lambda//4 Resonators

Publication Year: 2013, Page(s):808 - 816
Cited by:  Papers (21)
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This paper proposes a unified synthesis method for the bandpass filters based on the alternative J/K inverters and λ/4 microstrip line resonators. Firstly, an even-order Chebyshev bandpass filter prototype with equal terminations is transformed to two dual networks based on hybrid J/K inverters and λ/4 resonators. In this work, two adjacent λ/4 resonators are coupled with each... View full abstract»

• ### Novel Miniaturization Method for Wideband Filter Design With Enhanced Upper Stopband

Publication Year: 2013, Page(s):817 - 826
Cited by:  Papers (5)
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In this paper, a novel miniaturization method for filter implementation is presented and validated. According to frequency response transformation, the filter structure has the wideband bandpass response in the required frequency band which is lower than the operation frequency. The in-band and out-of-band characteristics are also improved to realize wide passband and stopband responses. For demon... View full abstract»

• ### Dual-Band Matching Properties of the C-Section All-Pass Network

Publication Year: 2013, Page(s):827 - 832
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The all-pass C-section is introduced as a replacement for the classic quarter-wave section in the design of wideband dual-band impedance-matching networks. First, the impedance-matching properties of the all-pass C-section are presented, showing its dual-band behavior. Second, a simple adaptation to dual-band designs of the well-known wideband designs with binomial and Chebyshev responses is intro... View full abstract»

• ### Impact of Extrinsic Capacitances on FinFET RF Performance

Publication Year: 2013, Page(s):833 - 840
Cited by:  Papers (18)
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Triple-Gate FinFETs have been demonstrated to be promising to push further the down scaling of CMOS technology, because of their high immunity against the so-called short channel effects. However, due to their three-dimensional (3-D) architecture, strong degradation of their analog characteristics has been reported, basically due to large extrinsic resistances and capacitances. In this paper, base... View full abstract»

• ### A 30-GHz Integrated Subharmonic Mixer Based on a Multichannel Graphene FET

Publication Year: 2013, Page(s):841 - 847
Cited by:  Papers (36)
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A 30-GHz integrated subharmonic mixer based on a single graphene field-effect transistor (G-FET) has been designed, fabricated, and characterized. The mixer is realized in microstrip technology on a 250- μm-high-resistivity silicon substrate. In order to enhance the current on-off ratio, the G-FET utilizes a channel consisting of an array of bow-tie structured graphene, yielding a current o... View full abstract»

• ### A 0.4–6-GHz Frequency Synthesizer Using Dual-Mode VCO for Software-Defined Radio

Publication Year: 2013, Page(s):848 - 859
Cited by:  Papers (9)
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This paper presents a dual-mode voltage-controlled oscillator (DMVCO) and a DMVCO-based wideband frequency synthesizer for software-defined radio applications. The DMVCO allows the synthesizer to leverage single-sideband (SSB) mixing, a power efficient approach, for high-frequency local oscillator (LO) signal generation, without the need of poly-phase filter or quadrature voltage-controlled oscill... View full abstract»

• ### A W-Band Wide Locking Range and Low DC Power Injection-Locked Frequency Tripler Using Transformer Coupled Technique

Publication Year: 2013, Page(s):860 - 870
Cited by:  Papers (17)
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A W-band wide locking range injection-locked frequency tripler (ILFT) with low dc power consumption is presented in this paper. By using a transformer coupled (TC) topology, the proposed TC-ILFT features the following advantages: 1) the negative resistance of the cross-coupled pair is not degraded due to the proposed TC-ILFT without source degeneration, and the TC-ILFT can be operated in lo... View full abstract»

• ### Cryogenic Broadband Ultra-Low-Noise MMIC LNAs for Radio Astronomy Applications

Publication Year: 2013, Page(s):871 - 877
Cited by:  Papers (8)
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0.5-13- and 24-40-GHz broadband cryogenic monolithic-microwave integrated-circuit low-noise amplifiers (LNAs) have been designed and fabricated using a 130-nm InP HEMT process. Packaged LNAs have been measured at both 300 and 15 K. At 300 K, the measured minimum noise temperature of the 0.5-13-GHz LNA was 48 K at 7 GHz with a gain between 34-40 dB. At 15 K, the measured minimum noise temperature w... View full abstract»

• ### RF Power Amplifier Efficiency Enhancement by Envelope Injection and Termination for Mobile Terminal Applications

Publication Year: 2013, Page(s):878 - 889
Cited by:  Papers (6)  |  Patents (1)
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An improved technique to enhance the efficiency of the linear RF power amplifiers (PAs) used in mobile terminal applications is proposed. The baseband load impedance is optimized, and the input envelope, along with the RF signal, is fed to the PA input. The resulting baseband modulation of the drain increases the saturated RF output power for a given dc power consumption. Digital predistortion is ... View full abstract»

• ### A Cascode Feedback Bias Technique for Linear CMOS Power Amplifiers in a Multistage Cascode Topology

Publication Year: 2013, Page(s):890 - 901
Cited by:  Papers (15)
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A novel feedback bias technique for a multistage cascode topology is developed to improve the linearity and reliability of power amplifiers (PAs). Due to the large parasitic capacitance and low substrate resistivity of CMOS technology, signal swings are coupled between the ports of transistors. The proposed method utilized the RF leakage signals at the gate of common-gate (CG) transistor in a casc... View full abstract»

• ### A Wide Gain Control Range V-Band CMOS Variable-Gain Amplifier With Built-In Linearizer

Publication Year: 2013, Page(s):902 - 913
Cited by:  Papers (8)
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In this paper, the design and analysis of a CMOS variable gain amplifier (VGA) with the built-in linearizers and noise reduction technique are presented. A V-band low power and miniature VGA is designed and fabricated. To maximize the gain control range and to improve the linearity, an auxiliary nMOS transistor is added in the cascode structure as a built-in linearizer. Moreover, to reduce ... View full abstract»

• ### Large-Swing-Tolerant ESD Protection Circuit for Gigahertz Power Amplifier in a 65-nm CMOS Process

Publication Year: 2013, Page(s):914 - 921
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The signal swing at output pad of some radio-frequency (RF) power amplifiers (PAs) may be higher than the supply voltage. To protect the gigahertz large-swing power amplifier from electrostatic discharge (ESD) damage in nanoscale CMOS process, a large-swing-tolerant ESD protection circuit is presented in this paper. The proposed ESD protection circuit had been designed, fabricated, and characteriz... View full abstract»

## Aims & Scope

The IEEE Transactions on Microwave Theory and Techniques focuses on that part of engineering and theory associated with microwave/millimeter-wave components, devices, circuits, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals. This includes scientific, technical, and industrial, activities. Microwave theory and techniques relates to electromagnetic waves usually in the frequency region between a few MHz and a THz; other spectral regions and wave types are included within the scope of the Society whenever basic microwave theory and techniques can yield useful results. Generally, this occurs in the theory of wave propagation in structures with dimensions comparable to a wavelength, and in the related techniques for analysis and design..

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## Meet Our Editors

Editor-in-Chief
Luca Perregrini
luca.perregrini@unipv.it

Editor-in-Chief
Jose Carlos Pedro
edit.tmtt@ua.pt