# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 25 of 32

Publication Year: 2006, Page(s): c1
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2006, Page(s): c2
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• ### Design of Ultra-Wideband Monopulse Receiver

Publication Year: 2006, Page(s):3821 - 3827
Cited by:  Papers (13)
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In this paper, we propose a novel amplitude-comparison monopulse receiver architecture for ultra-wideband radars. This monopulse receiver consists of four ridged-horn antennas placed in a square-feed configuration, a comparator circuit that generates the monopulse sum and difference signals, cross-correlation receivers that detect the monopulse signals, and an amplitude-comparison monopulse proces... View full abstract»

• ### Design and Optimization of the Extended True Single-Phase Clock-Based Prescaler

Publication Year: 2006, Page(s):3828 - 3835
Cited by:  Papers (42)  |  Patents (1)
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The power consumption and operating frequency of the extended true single-phase clock (E-TSPC)-based frequency divider is investigated. The short-circuit power and the switching power in the E-TSPC-based divider are calculated and simulated. A low-power divide-by-2/3 unit of a prescaler is proposed and implemented using a CMOS technology. Compared with the existing design, a 25% reduction of power... View full abstract»

• ### Optimization and Realization of Planar Isolated GaAs Zero-Biased Planar Doped Barrier Diodes for Microwave/Millimeter-Wave Power Detectors/Sensors

Publication Year: 2006, Page(s):3836 - 3842
Cited by:  Papers (13)
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A high tangential signal sensitivity (TSS) zero-bias GaAs planar doped barrier (PDB) diode for microwave and millimeter-wave power detection applications is presented. The fabricated PDB diodes have shown 4 dB better TSS at 35 GHz than that of reported devices, considerably increasing the minimum detectable power and widening the dynamic range. The high TSS was obtained by optimizing the PDB layer... View full abstract»

• ### A Wideband InP DHBT True Logarithmic Amplifier

Publication Year: 2006, Page(s):3843 - 3847
Cited by:  Papers (1)
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A wideband logarithmic amplifier is demonstrated in this paper using InP-InGaAs double heterojunction bipolar transistor technology. The amplifier uses cascaded gain stages including the limiting and unity amplifiers to achieve a piecewise approximation to the ideal logarithmic response. The performance of 43-dB dynamic range, 22-GHz bandwidth, and <plusmn2-dB log error is achieved. The integra... View full abstract»

• ### High-Efficiency Envelope-Tracking W-CDMA Base-Station Amplifier Using GaN HFETs

Publication Year: 2006, Page(s):3848 - 3856
Cited by:  Papers (173)  |  Patents (18)
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A high-efficiency wideband code-division multiple-access (W-CDMA) base-station amplifier is presented using high-performance GaN heterostructure field-effect transistors to achieve high gain and efficiency with good linearity. For high efficiency, class J/E operation was employed, which can attain up to 80% efficiency over a wide range of input powers and power supply voltages. For nonconstant env... View full abstract»

• ### A 17-GHz Push&#8211;Push VCO Based on Output Extraction From a Capacitive Common Node in GaInP/GaAs HBT Technology

Publication Year: 2006, Page(s):3857 - 3863
Cited by:  Papers (11)
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This paper presents a new push-push voltage-controlled oscillator (VCO) technique that extracts a second harmonic output signal from a capacitive common node in a negative-gm oscillator topology. The generation of the second harmonics is accounted for by the nonlinear current-voltage characteristic of the emitter-base junction diode causing: 1) significant voltage clipping and 2) differ... View full abstract»

• ### New Techniques for the Analysis and Design of Coupled-Oscillator Systems

Publication Year: 2006, Page(s):3864 - 3877
Cited by:  Papers (31)  |  Patents (1)
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An in-depth analysis of the nonlinear dynamics of coupled-oscillator arrays is presented for a better understanding of their complex autonomous behavior. In one-dimensional arrays, the constant inter-stage phase shift is varied by simultaneously detuning the two outermost oscillators in opposite directions. Thus, the array can be considered as a two-parameter system. Here, a two-parameter stabilit... View full abstract»

• ### A Spectral Integral Method and Hybrid SIM/FEM for Layered Media

Publication Year: 2006, Page(s):3878 - 3884
Cited by:  Papers (11)
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This paper first presents a spectral integral method (SIM) for electromagnetic scattering from homogeneous dielectric and perfectly electric conducting objects straddling several layers of a multilayered medium. It then uses this SIM as an exact radiation boundary condition to truncate the computational domain in the finite-element method (FEM) to form a hybrid SIM/FEM, which is applicable to arbi... View full abstract»

• ### Efficient Analysis, Design, and Filter Applications of EBG Waveguide With Periodic Resonant Loads

Publication Year: 2006, Page(s):3885 - 3892
Cited by:  Papers (22)
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An efficient analysis and design of an electromagnetic-bandgap (EBG) waveguide with resonant loads is presented. Equivalent-circuit analysis is employed to demonstrate the differences between EBG waveguides with resonant and nonresonant loadings. As a result of the resonance, transmission zeros at finite frequencies emerge. The concept is demonstrated in E-plane waveguides. A generic fast and effi... View full abstract»

• ### Homogenization of 3-D Periodic Bianisotropic Metamaterials

Publication Year: 2006, Page(s):3893 - 3898
Cited by:  Papers (25)
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A novel homogenization technique, combining an asymptotic multiscale method with wave-field conception, is proposed for computing the quasi-static effective parameters of three-dimensional lattices of general bianisotropic composite materials. This technique is based on the decomposition of the fields into an averaged nonoscillating part and a corrected term with microoscillation. This paper provi... View full abstract»

• ### Experimental Verification of Phase Retrieval of Quasi-Optical Millimeter-Wave Beams

Publication Year: 2006, Page(s):3899 - 3905
Cited by:  Papers (13)
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The accuracy of a phase-retrieval procedure for microwave beams was analyzed and verified using an 84-GHz quasi-optical beam transmitted by a corrugated waveguide. The output intensity and phase profiles of the beam were directly measured with a microwave receiver. The beam intensity was also measured at several planes and the data were used with a phase-retrieval algorithm to yield an independent... View full abstract»

Publication Year: 2006, Page(s):3906 - 3913
Cited by:  Papers (8)
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A computer-aided design technique for coupled resonator filters is presented. The technique is formulated as a bound constrained quadratic programming (QP) problem and predicated upon coupling matrix identification. The identification relies on the derivation of a rational model of the filter response and is formulated as a bound constrained QP problem. The definition of the optimization procedure... View full abstract»

• ### The Design of Microwave Bandpass Filters Using Resonators With Nonuniform$Q$

Publication Year: 2006, Page(s):3914 - 3922
Cited by:  Papers (45)  |  Patents (1)
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With the exception of predistortion, most design methods for microwave filters are based on lossless prototype networks, with the effects of loss generally being considered afterwards, by analysis rather than synthesis. This paper presents new techniques, which either utilize existing losses, or add losses, to improve the performance of microwave bandpass filters. Unlike predistortion, these new t... View full abstract»

• ### Compact Partial$H$-Plane Filters

Publication Year: 2006, Page(s):3923 - 3930
Cited by:  Papers (14)
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In this paper, three types of partial H-plane filters, having advantages of compact, low cost, and mass-producible properties, are presented as compact waveguide filters, which are implemented by partial H-plane waveguide. Two types of partial H-plane filters have the same frequency responses as those of conventional E- and H-plane filters, respectively, while their cross sections are one-quarter.... View full abstract»

• ### Low-Loss 5.15&#8211;5.70-GHz RF MEMS Switchable Filter for Wireless LAN Applications

Publication Year: 2006, Page(s):3931 - 3939
Cited by:  Papers (39)  |  Patents (3)
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Low-loss 3.6-GHz fixed and 5.15-5.70-GHz RF microelectromechanical systems switchable filters were designed and fabricated on quartz substrates. Detailed design equations for the capacitively loaded coupled open-loop lambda/2 resonators are given and the realization of the tunable filter using these equations is discussed. The use of capacitively loaded coupled open-loop lambda/2 resonators made i... View full abstract»

• ### Coupling-Matrix Design of Dual and Triple Passband Filters

Publication Year: 2006, Page(s):3940 - 3946
Cited by:  Papers (103)
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The concept of the conventional coupling matrix is extended to include designs of dual- and triple-band filters. The multiband response is created by either placing transmission zeros within the bandwidth of a wideband filter or using higher order resonances. Realizable topologies both in planar and waveguide technologies can be imposed and associated coupling coefficients enforced during optimiza... View full abstract»

• ### A Method of Synthesizing Microwave Bandpass Filters Constructed With Symmetrical or Asymmetrical Compact Microstrip Resonators

Publication Year: 2006, Page(s):3947 - 3953
Cited by:  Papers (5)
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This paper presents a method of synthesizing microwave filters consisting of compact microstrip resonators (CMRs). The synthesizing method is based on the conventional insertion-loss design method and can be applied to the design of filters consisting of symmetrical and asymmetrical CMRs. The synthesizing method can help the designer to determine the appropriate layout according to the specified p... View full abstract»

• ### A Narrowband Superconducting Filter Using Spirals With a Reversal in Winding Direction

Publication Year: 2006, Page(s):3954 - 3959
Cited by:  Papers (13)
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A resonator consisting of a microstrip spiral, with a reversal in winding direction, is used for a narrowband superconducting filter. The fields are tightly confined, leading to the required small coupling coefficients, without a large separation between resonators. Nevertheless, tunability and power-handling capacity are better than some other resonators with localized fields. A quality factor ex... View full abstract»

• ### A Noise-Free and Jitterless Cavity System to Distribute Clocks Over 10 GHz

Publication Year: 2006, Page(s):3960 - 3967
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We discuss a novel method using a cavity to deliver a high-frequency clock in ultra large-scale integration systems. This method can distribute global clock over 10 GHz without skew and electromagnetic interference noise. Since the cavity can be formed by a usual metallization or its extended process, it will be realized easier compared with other emerging technology such as photoelectric circuits... View full abstract»

• ### Dual- and Triple-Mode Branch-Line Ring Resonators and Harmonic Suppressed Half-Ring Resonators

Publication Year: 2006, Page(s):3968 - 3974
Cited by:  Papers (14)
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Ring resonators have been widely used for various applications. Dual-mode ring resonators have also been investigated due to their applicability to multifrequency mode requirement. In this paper, dual-mode ring resonators using a branch line are designed along with a systematic approach. Triple-mode branch-line ring resonators are also designed adding two branch lines to the ring resonator. Adding... View full abstract»

• ### A New Lossy Substrate Model for Accurate RF CMOS Noise Extraction and Simulation With Frequency and Bias Dependence

Publication Year: 2006, Page(s):3975 - 3985
Cited by:  Papers (11)
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A lossy substrate model is developed to accurately simulate the measured RF noise of 80-nm super-100-GHz fT n-MOSFETs. A substrate RLC network built in the model plays a key role responsible for the nonlinear frequency response of noise in 1-18-GHz regime, which did not follow the typical thermal noise theory. Good match with the measured S-parameters, Y-parameters, and noise parameters... View full abstract»

• ### Design of Compensated Coupled-Stripline 3-dB Directional Couplers, Phase Shifters, and Magic-T's&#8212;Part I: Single-Section Coupled-Line Circuits

Publication Year: 2006, Page(s):3986 - 3994
Cited by:  Papers (44)
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The problem of discontinuities in coupled-stripline 3-dB directional couplers, phase shifters, and magic-T's, regarding the connections of coupled and terminating signal lines, has been comprehensively investigated for the first time. The proposed equivalent circuit of these discontinuities, of which parameters can be computed in a process of fitting curves of the circuit and electromagnetic analy... View full abstract»

• ### Measurements of Permittivity, Dielectric Loss Tangent, and Resistivity of Float-Zone Silicon at Microwave Frequencies

Publication Year: 2006, Page(s):3995 - 4001
Cited by:  Papers (59)
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The complex permittivity and resistivity of float-zone high-resistivity silicon were measured at microwave frequencies for temperatures from 10 up to 400 K employing dielectric-resonator and composite dielectric-resonator techniques. At temperatures below 25 K, where all free carriers are frozen out, loss-tangent values of the order of 2times10-4 were measured, suggesting the existence ... 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