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# IEEE Transactions on Microwave Theory and Techniques

## Issue 12  Part 1 • Dec. 2006

This issue contains several parts.Go to:  Part 2

## Filter Results

Displaying Results 1 - 25 of 32

Publication Year: 2006, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2006, Page(s): C2
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• ### A Nonquasi-Static Empirical Model of Electron Devices

Publication Year: 2006, Page(s):4021 - 4031
Cited by:  Papers (12)
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A new nonquasi-static nonlinear model of electron devices is proposed by adopting a perturbed charge-controlled approach. The model is based on the definition of a virtual quasi-static device, associated with the actual one, which is controlled by means of equivalent voltage sources. The advantage of this approach is that conventional purely quasi-static models can be still adopted even at very hi... View full abstract»

• ### Sources of Phase Error and Design Considerations for Silicon-Based Monolithic High-Pass/Low-Pass Microwave Phase Shifters

Publication Year: 2006, Page(s):4032 - 4040
Cited by:  Papers (29)
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A comprehensive analysis of error sources in monolithic microwave phase shifters due to device size limitations, inductor parasitics, loading effects, and nonideal switches is presented. Each component utilized in the implementation of a monolithic high-pass/low-pass phase shifter is analyzed, and its influence on phase behavior is shown in detail, with an emphasis on the net impact on absolute ph... View full abstract»

• ### A $Ka$-Band FMCW Radar Front-End With Adaptive Leakage Cancellation

Publication Year: 2006, Page(s):4041 - 4048
Cited by:  Papers (47)
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Monostatic frequency modulation continuous wave radars that use one antenna to simultaneously transmit and receive can result in compact and lightweight synthetic aperture radar systems. One of the greatest challenges in designing a continuous-wave monostatic radar is realizing enough isolation between the transmitter and the receiver. A novel real-time digital signal processing scheme is proposed... View full abstract»

• ### Stability Criterion for Two-Port Network With Input and Output Terminations Varying in Elliptic Regions

Publication Year: 2006, Page(s):4049 - 4055
Cited by:  Papers (3)
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New criteria to check the conditional stability of microwave amplifiers with input and output terminations varying in prespecified elliptic regions surrounding complex nominal values are proposed. Necessary and sufficient conditions are provided in terms of the immittance parameters lambdaij (i.e., zij, yij, gij, or hij): these conditions can ... View full abstract»

• ### 2-bit $X$-Band Reflective Waveguide Phase Shifter With BCB-Based Bias Circuits

Publication Year: 2006, Page(s):4056 - 4061
Cited by:  Papers (8)
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The design and performance of a 2-bit p-i-n diode reflective X-band phase shifter are described. This phase shifter uses the spiraphase principle of phase changing. Benzocyclobutene-based bias circuits are used to decrease the insertion loss level and to reduce the fabrication costs. It has been proven that the phase shifter demonstrates insertion loss better than 0.5 dB in the frequency band from... View full abstract»

• ### A Low-Power RF Direct-Conversion Receiver/Transmitter for 2.4-GHz-Band IEEE 802.15.4 Standard in 0.18- $mu{hbox {m}}$ CMOS Technology

Publication Year: 2006, Page(s):4062 - 4071
Cited by:  Papers (63)  |  Patents (4)
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This paper presents a low-power RF receiver/transmitter front-end for 2.4-GHz-band IEEE 802.15.4 standard in 0.18-mum CMOS technology. An RF receiver comprises a single-ended low-noise amplifier, a quadrature passive mixer, and a transimpedance amplifier. A current-mode passive mixer showing a very good 1/f noise performance is adopted to convert an RF signal directly to a baseband signal. Moreove... View full abstract»

• ### An SiC MESFET-Based MMIC Process

Publication Year: 2006, Page(s):4072 - 4078
Cited by:  Papers (27)
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A monolithic microwave integrated circuit (MMIC) process based on an in-house SiC MESFET technology has been developed. The process uses microstrip technology, and a complete set of passive components, including MIM capacitors, spiral inductors, thin-film resistors, and via-holes, has been developed. The potential of the process is demonstrated by an 8-W power amplifier at 3 GHz, a high-linearity ... View full abstract»

• ### A Highly Linear Low-Noise Amplifier

Publication Year: 2006, Page(s):4079 - 4085
Cited by:  Papers (58)  |  Patents (4)
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A low-noise amplifier (LNA) that achieves high third-order input intercept point (IIP3) at RF frequencies using a nonlinearity cancellation technique is proposed. The circuit tackles the problem of the effect of the second-order nonlinearity on IIP3 at RF frequencies. The circuit functionality is analyzed using Volterra series. The linear LNA was designed and fabricated in a TSMC 0.35-mum CMOS pro... View full abstract»

• ### An Improved Power-Added Efficiency 19-dBm Hybrid Envelope Elimination and Restoration Power Amplifier for 802.11g WLAN Applications

Publication Year: 2006, Page(s):4086 - 4099
Cited by:  Papers (196)  |  Patents (17)
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A comparison of envelope elimination and restoration (EER) and envelope tracking (ET) is discussed and a "hybrid" wideband EER power amplifier (PA) for the WLAN 802.11g system is proposed. A 60% efficiency (the output envelope signal power/input dc power) DC-20-MHz wideband envelope amplifier is designed for wideband EER and wideband ET (WBET) applications. A design method is developed to optimize... View full abstract»

• ### A High-Frequency Circuit Model for the Gap Excitation of a Microstrip Line

Publication Year: 2006, Page(s):4100 - 4110
Cited by:  Papers (2)
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An equivalent circuit model for a gap voltage source on a microstrip line is developed. The model is valid at high frequencies as long as a single mode propagates on the line and accounts for the reactive nature of the gap as well as the radiative nature of the currents on the line. The model also accounts for the nonunique definition of the characteristic impedance associated with the bound mode ... View full abstract»

• ### Focusing Efficiency Analysis and Performance Optimization of Arbitrarily Sized DNG Metamaterial Slabs With Losses

Publication Year: 2006, Page(s):4111 - 4121
Cited by:  Papers (5)
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The focusing behavior and optimal design of lossy double-negative (DNG) metamaterial slabs are thoroughly explored in this paper via an efficient technique. To this aim, the novel scheme embodies the signal processing notions of the cross-correlation coefficient and mean square error (mse) to treat structures with convoluted attributes. Furthermore, an enhanced formulation of the latter indicator,... View full abstract»

• ### Analytical Approach for Analysis of Nonuniform Lossy/Lossless Transmission Lines and Tapered Microstrips

Publication Year: 2006, Page(s):4122 - 4129
Cited by:  Papers (11)
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In this paper, distribution of voltage along a general nonuniform transmission line is expanded in an appropriate form, and by employing an approach similar to conventional and modified differential transfer matrix methods already proposed for optical structures, analytical expressions are obtained for voltage/current distributions and reflection/transmission coefficients. This method shows great ... View full abstract»

• ### Oversized $Ka$-Band Traveling-Wave Window for a High-Power Transmission

Publication Year: 2006, Page(s):4130 - 4135
Cited by:  Papers (2)
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A new millimeter-wave barrier window in an oversized metallic circular waveguide has been developed for high-power transmission. The novel design utilizes the traveling-wave regime in an oversized profiled guide and synthesized TE0n mode mixing to minimize field intensity at the alumina ceramics surface. Proper choice of ceramics thickness provides necessary broadening of the operation ... View full abstract»

• ### Application of Electromagnetic Bandgaps to the Design of Ultra-Wide Bandpass Filters With Good Out-of-Band Performance

Publication Year: 2006, Page(s):4136 - 4140
Cited by:  Papers (100)
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In this study, a new technique for the design of ultra-wide bandpass filters with spurious suppression over a very wide band is presented. The method consists on the combination of a well-known analytical design approach to achieve wide bandwidths with an electromagnetic bandgap structure, which is fundamental for spurious suppression. To illustrate the technique, a microstrip of ultra-wide bandpa... View full abstract»

• ### Compact Models Based on Transmission-Line Concept for Integrated Capacitors and Inductors

Publication Year: 2006, Page(s):4141 - 4148
Cited by:  Papers (26)  |  Patents (2)
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This paper presents a compact modeling methodology for inductors and capacitors based on transmission-line theory. Using continued fractions approximation, second- and third-order intrinsic inductor and capacitor models are demonstrated. With the second-order model, one can accurately predict inductor and capacitor behavior up to their first resonance frequencies. With the third-order model, one c... View full abstract»

• ### Prediction of the End-to-End Performance of a Microwave/RF Link by Means of Nonlinear/Electromagnetic Co-Simulation

Publication Year: 2006, Page(s):4149 - 4160
Cited by:  Papers (16)
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This paper describes the simulation of a microwave link from the transmitter to the receiver intermediate-frequency ports, by means of a rigorous circuit-level nonlinear analysis approach coupled with the electromagnetic characterization of the transmitter and receiver front-ends. This includes a full electromagnetic computation of the radiated far field which is used to establish the connection b... View full abstract»

• ### A Planar High-$Q$ Micromachined Monolithic Half-Coaxial Transmission-Line Filter

Publication Year: 2006, Page(s):4161 - 4168
Cited by:  Papers (12)
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In this paper, a surface micromachined high-Q planar transmission line is presented. The proposed structure is a half-coaxial transmission line on a quartz substrate. The half-coaxial transmission line has a 100-mum air gap between the half-coaxial center conductor and ground plane. The unloaded quality factor extracted from an experimental resonator was 153 at 32 GHz. The proposed structure can b... View full abstract»

• ### Dual-Band Lumped-Element Bandpass Filter

Publication Year: 2006, Page(s):4169 - 4177
Cited by:  Papers (33)
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In this study, a dual-band lumped-element bandpass filter (DBLEF) is presented, which is implemented in low-temperature co-fired ceramic. The design utilizes the tight component coupling possible in this technology to mimic a much more complex network of lumped components. The filter is unique in that it utilizes only a single set of lumped components to create a dual-passband response. Detailed d... View full abstract»

• ### Combined Left- and Right-Handed Tunable Transmission Lines With Tunable Passband and 0 $^{circ}$ Phase Shift

Publication Year: 2006, Page(s):4178 - 4184
Cited by:  Papers (29)
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We combine a right-handed (RH) and a left-handed (LH) nonlinear transmission line (NLTL) to realize a new frequency and phase-tunable bandpass filter (BPF). An RH NLTL is a voltage-controlled low-pass filter and an LH NLTL is a voltage-controlled high-pass filter, so combining both allows for simultaneous and independent control over the low and high cutoff frequencies of the passband. Also, by us... View full abstract»

• ### Design of Matching Circuits for Microstrip Triplexers Based on Stepped-Impedance Resonators

Publication Year: 2006, Page(s):4185 - 4192
Cited by:  Papers (38)  |  Patents (1)
| | PDF (1474 KB) | HTML

New matching circuits for microstrip triplexers are proposed based on half-wavelength tapped-connected (or fed) stepped-impedance resonators. The stepped-impedance resonators play important roles for the matching circuits, either to serve as a through pass at the center frequency of a bandpass filter or to provide a short circuit at the center frequency of another bandpass filter. First, three tap... View full abstract»

• ### Electronically Switchable Bandpass Filters Using Loaded Stepped-Impedance Resonators

Publication Year: 2006, Page(s):4193 - 4201
Cited by:  Papers (38)
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Stepped-impedance resonators with diodes loaded at one end are used to develop switchable bandpass filters in this paper. The loaded diodes are used to switch the resonance conditions of the stepped-impedance resonators. The equations for resonance conditions of the stepped-impedance resonators with different loads at one end are derived and discussed. With these derived equations, the switchable ... View full abstract»

• ### Polymer–Ceramic Composites for Microwave Applications: Fabrication and Performance Assessment

Publication Year: 2006, Page(s):4202 - 4208
Cited by:  Papers (76)  |  Patents (1)
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We present a novel technique to fabricate conformal and pliable substrates for microwave applications including systems-on-package. The produced materials are fabricated by combining ceramic powders with polymers to generate a high-contrast substrate that is concurrently pliable (bendable). Several such polymer-ceramic substrates are fabricated and used to examine the performance of a patch antenn... View full abstract»

• ### A Systematic Design to Suppress Wideband Ground Bounce Noise in High-Speed Circuits by Electromagnetic-Bandgap-Enhanced Split Powers

Publication Year: 2006, Page(s):4209 - 4217
Cited by:  Papers (26)  |  Patents (1)
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In this paper, the split power planes with electromagnetic bandgap structures enhancement is proposed for the wideband suppression of ground bounce noise in high-speed printed circuit boards. A systematic design procedure is presented, featuring a modified analytic design formula, a novel compact electromagnetic bandgap layout, and a discussion on the minimum number of cascaded rows. As it is capa... 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