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# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 23 of 23

Publication Year: 2008, Page(s):C1 - C4
| PDF (48 KB)
• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2008, Page(s): C2
| PDF (41 KB)
• ### Compact Empirical Modeling of Nonlinear Dynamic Thermal Effects in Electron Devices

Publication Year: 2008, Page(s):2017 - 2024
Cited by:  Papers (4)
| | PDF (700 KB) | HTML

An original empirical approach to deal with nonlinear dynamic thermal effects in electron devices is proposed. The new technology-independent approach is very compact and easy to implement in computer-aided design tools. Therefore, it can be easily coupled with electrical device models in order to obtain accurate electrothermal models that are suitable for nonconstant-envelope RF applications (e.g... View full abstract»

• ### A Packaged MEMS-Based 5-bit $X$ -Band High-Pass/Low-Pass Phase Shifter

Publication Year: 2008, Page(s):2025 - 2031
Cited by:  Papers (19)
| | PDF (770 KB) | HTML

This paper demonstrates the first packaged microelectromechanical systems-based phase shifter using high-pass/low-pass circuit topology. The device was fabricated with a process resembling available low-cost commercial Si and SiGe processes, and demonstrates an average loss of 4.5 dB with an rms phase error better than 10deg for 8-12 GHz. Thermal compression bonding is used to package the phase sh... View full abstract»

• ### High-Power 20-100-MHz Linear and Efficient Power-Amplifier Design

Publication Year: 2008, Page(s):2032 - 2039
Cited by:  Papers (15)
| | PDF (719 KB) | HTML

This paper presents modeling and analysis of the realization of high-power broadband RF power amplifiers (PAs) and power combiners. In the scope of the study, a model is proposed for a transmission line with a ferrite core, which is the basic building block for the transmission line transformers (TLTs) used in broadband high-power amplifiers and power combiner/divider networks as a building block.... View full abstract»

• ### A 900-MHz 29.5-dBm 0.13-μm CMOS HiVP Power Amplifier

Publication Year: 2008, Page(s):2040 - 2045
Cited by:  Papers (10)
| | PDF (719 KB) | HTML

Using ST 0.13-mum CMOS technology, a class A power amplifier has been developed for the global system for mobile communication in Europe. To solve the problem of low breakdown voltage in deep-submicrometer CMOS technology, the high-voltage/high-power (HiVP) device configuration is used. With the HiVP configuration, a large voltage can be divided by several devices so that the voltage drop on each ... View full abstract»

• ### A $Q$ -Band Four-Element Phased-Array Front-End Receiver With Integrated Wilkinson Power Combiners in 0.18-$mu{{hbox{m}}}$ SiGe BiCMOS Technology

Publication Year: 2008, Page(s):2046 - 2053
Cited by:  Papers (28)
| | PDF (1600 KB) | HTML

A four-element phased-array front-end receiver based on 4-bit RF phase shifters is demonstrated in a standard 0.18-mum SiGe BiCMOS technology for Q-band (30-50 GHz) satellite communications and radar applications. The phased-array receiver uses a corporate-feed approach with on-chip Wilkinson power combiners, and shows a power gain of 10.4 dB with an IIP3 of -13.8 dBm per element... View full abstract»

• ### Applying Millimeter-Wave Correlation Radiometry to the Detection of Self-Luminous Objects at Close Range

Publication Year: 2008, Page(s):2054 - 2061
Cited by:  Papers (9)  |  Patents (1)
| | PDF (1403 KB) | HTML

The novel application of correlation radiometer theory to the detection of self-luminous objects at close range is presented in the context of human presence detection. Modifications and additions to techniques developed in radio astronomy and remote sensing for close-range terrestrial situations are developed and discussed. To demonstrate the new techniques, a Ka-band correlation radiomete... View full abstract»

• ### Performance Analysis of Serial and Parallel Six-Port Modulators

Publication Year: 2008, Page(s):2062 - 2068
Cited by:  Papers (12)
| | PDF (587 KB) | HTML

We have derived the transfer functions for two types of six-port quadrature phase-shift keying (QPSK) modulators and investigated their performances in terms of carrier leakage, Gray mapping, and conversion efficiencies. Our result shows that the carrier leakage is minimized when GammaON = -GammaOFF. In addition, our analysis reveals here that only the parallel six-port QPSK ... View full abstract»

• ### Efficient Evaluation of the 3-D Periodic Green's Function Through the Ewald Method

Publication Year: 2008, Page(s):2069 - 2075
Cited by:  Papers (21)
| | PDF (853 KB) | HTML

The Ewald method is efficiently applied for the computation of the Green's function for a 3-D array of phased point sources. A best splitting parameter E, which avoids the loss of accuracy occurring at high frequencies while maintaining rapidly converging properties, is derived. The loss of significant digits in the calculation of the modified spatial and spectral series involved in the Ewa... View full abstract»

• ### Accurate Physical Modeling of Discretization Error in 1-D Perfectly Matched Layers Using Finite-Difference Time-Domain Method

Publication Year: 2008, Page(s):2076 - 2085
Cited by:  Papers (1)
| | PDF (677 KB) | HTML

In this paper we present an accurate physical model of discretization error in a 1-D perfectly matched layer (PML) using the finite-difference time-domain method. The model is based on the concept of the discrete wave impedance of the PML. This concept implies that the wave impedance in the discretized space changes, with respect to the continuous value, when absorption occurs. These changes depen... View full abstract»

• ### Improved Synthesis for the Design of Microwave Filters With a Minimum Insertion-Loss Configuration

Publication Year: 2008, Page(s):2086 - 2094
Cited by:  Papers (4)
| | PDF (921 KB) | HTML

This paper proposes a synthesis methodology for implementing microwave filters with a minimum insertion-loss configuration when several coupling topologies or coupling matrices are available with the selected technology. The methodology introduces, before dimensioning the distributed prototype, a careful characterization of losses due to individual distributed elements. The next step is to derive ... View full abstract»

• ### Ultra-Wideband Bandpass Filter Using Multilayer Liquid-Crystal-Polymer Technology

Publication Year: 2008, Page(s):2095 - 2100
Cited by:  Papers (59)
| | PDF (1596 KB) | HTML

Novel ultra-wideband (UWB) bandpass filters are proposed based on quasi-lumped-element prototypes and implemented with multilayer liquid-crystal-polymer (LCP) technology. In this study, the broadside-coupled microstrip radial stubs and high-impedance microstrip lines are adopted as quasi-lumped elements for realizing compact UWB bandpass filters. By introducing a short-circuited high-impedance mic... View full abstract»

Publication Year: 2008, Page(s):2101 - 2110
Cited by:  Papers (19)
| | PDF (1218 KB) | HTML

Microstrip parallel-coupled filters with generalized Chebyshev responses are presented. The basic structure of the proposed filter is a conventional parallel-coupled filter of which the physical dimensions can be easily obtained by the well-known analytical method. With the aid of the equivalent circuit corresponding to a conventional parallel-coupled filter, the relative insertion phase from sour... View full abstract»

• ### Development of Thin-Film Liquid-Crystal-Polymer Surface-Mount Packages for $Ka$ -Band Applications

Publication Year: 2008, Page(s):2111 - 2117
Cited by:  Papers (15)
| | PDF (1088 KB) | HTML

In this paper, we present the design and development of thin-film liquid-crystal-polymer (LCP) surface-mount packages for Ka-band applications. The packages are constructed using multilayer LCP films and are surface mounted on a printed circuit board (PCB). Our experimental results demonstrate that the package feed-through transition including a PCB launch and bond wires achieve a return loss of b... View full abstract»

• ### Analytical Evaluation of Via-Plate Capacitance for Multilayer Printed Circuit Boards and Packages

Publication Year: 2008, Page(s):2118 - 2128
Cited by:  Papers (96)
| | PDF (1646 KB) | HTML

The via-plate capacitance for a via transition to a multilayer printed circuit board is evaluated analytically in terms of higher order parallel-plate modes. The Green's function in a bounded coaxial cavity for a concentric magnetic ring current is first derived by introducing reflection coefficients for cylindrical waves at the inner and outer cavity walls. These walls can be perfect electric con... View full abstract»

• ### A Fast and Accurate Amplitude-Only Transmission-Reflection Method for Complex Permittivity Determination of Lossy Materials

Publication Year: 2008, Page(s):2129 - 2135
Cited by:  Papers (48)
| | PDF (399 KB) | HTML

Complex scattering parameter measurements using expensive vector network analyzers make microwave techniques inconvenient for industrial-based applications. In industry, accurate and fast evaluation of materials' properties using a relatively inexpensive measurement setup is a key issue. In this paper, we derive an objective function for fast and accurate complex permittivity (epsiv) determination... View full abstract»

• ### New Method for Noise-Parameter Measurement of a Mismatched Linear Two-Port Using Noise Power Wave Formalism

Publication Year: 2008, Page(s):2136 - 2142
Cited by:  Papers (8)
| | PDF (783 KB) | HTML

The noise power wave formalism is used to extract the noise parameters from the noise power measurement. A first step consists of calibrating the measurement setup. We only assume that the receiver is unidirectional. The noise parameters are then deduced from power measurements with analytical relations with no further assumptions. View full abstract»

• ### Optical Spatial Quantization for Higher Performance Analog-to-Digital Conversion

Publication Year: 2008, Page(s):2143 - 2150
Cited by:  Papers (7)
| | PDF (1321 KB) | HTML

A novel optical spatial quantized analog-to-digital conversion scheme for real-time conversion at ultrahigh sampling frequencies is presented. At each sampling instant, the analog input voltage deflects an optical sampling pulse onto an array of photodetectos. The output code is derived from the output voltages of the photodetectors on which the optical beam lands. Particular benefits of the propo... View full abstract»

• ### An Analog RF MEMS Slotline True-Time-Delay Phase Shifter

Publication Year: 2008, Page(s):2151 - 2159
Cited by:  Papers (9)
| | PDF (1130 KB) | HTML

An analog RF microelectromechanical systems (MEMS) slotline true-time-delay (TTD) phase shifter is presented for use in conjunction with tapered slot antennas, such as the Vivaldi aerial and the double exponentially tapered slot antenna. The design is a scalable distributed loaded-line cascade of 62 novel differential slow-wave unit cells. Each differential slow-wave unit cell comprises an electri... View full abstract»

• ### Development and Laboratory Testing of a Noninvasive Intracranial Focused Hyperthermia System

Publication Year: 2008, Page(s):2160 - 2171
Cited by:  Papers (23)
| | PDF (1294 KB) | HTML

During the past two decades, a great deal of research has been carried out with the aim of developing effective techniques for hyperthermia treatment, primarily using RF, microwave, and ultrasound energy. A system for deep brain hyperthermia treatment, designed to also provide passive measurements of temperature and/or conductivity variations inside the human body, is presented in this paper. The ... View full abstract»

• ### IEEE Transactions on Microwave Theory and Techniques information for authors

Publication Year: 2008, Page(s): 2172
| PDF (21 KB)
• ### IEEE Microwave Theory and Techniques Society Information

Publication Year: 2008, Page(s): C3
| PDF (29 KB)

## 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..

Full Aims & Scope

## Meet Our Editors

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

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