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# IEEE Transactions on Microwave Theory and Techniques

## Issue 12  Part 2 • Dec. 2007

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 44
• ### [Front cover]

Publication Year: 2007, Page(s): C1
| PDF (1920 KB)
• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2007, Page(s): C2
| PDF (41 KB)

Publication Year: 2007, Page(s):2657 - 2658
| PDF (51 KB)
• ### Guest Editorial

Publication Year: 2007, Page(s): 2659
| PDF (17 KB) | HTML
• ### An Electrothermal Model for AlGaN/GaN Power HEMTs Including Trapping Effects to Improve Large-Signal Simulation Results on High VSWR

Publication Year: 2007, Page(s):2660 - 2669
Cited by:  Papers (107)  |  Patents (2)
| | PDF (3235 KB) | HTML

A large-signal electrothermal model for AlGaN/GaN HEMTs including gate and drain related trapping effects is proposed here. This nonlinear model is well formulated to preserve convergence capabilities and simulation times. Extensive measurements have demonstrated the impact of trapping effects on the shapes of I(V) characteristics, as well as load cycles. It is shown that accurate modeling of gate... View full abstract»

• ### Design of Bandpass Transversal Filters Employing a Novel Hybrid Structure

Publication Year: 2007, Page(s):2670 - 2678
Cited by:  Papers (18)
| | PDF (1193 KB) | HTML

A novel structure for the implementation of compact transversal bandpass filters is proposed in this paper. This new proposal consists of a hybrid structure, based on the combination of two different technologies: the waveguide and microstrip. It is shown that the novel hybrid microwave filter is able to implement both a second- and third-order filtering function with up to two or three transmissi... View full abstract»

• ### A $DeltaSigma$ -Digitized Polar RF Transmitter

Publication Year: 2007, Page(s):2679 - 2690
Cited by:  Papers (62)  |  Patents (14)
| | PDF (2271 KB) | HTML

This paper demonstrates a new polar transmitter architecture, which uses the digitized envelope signal to control the drain voltage of a switching mode power amplifier (PA). It is based on a novel polar modulation using the constant envelope modulated signal. Among the various constant envelope modulators, the DeltaSigma modulator is chosen for its noise-shaping characteristic. It enables the use ... View full abstract»

• ### 40-GHz MMIC SPDT and Multiple-Port Bandpass Filter-Integrated Switches

Publication Year: 2007, Page(s):2691 - 2699
Cited by:  Papers (8)
| | PDF (1205 KB) | HTML

A 40-GHz monolithic microwave integrated circuit (MMIC) single-pole-double-throw and multiple-port bandpass filter-integrated switches based on electronically switchable resonators are proposed. The proposed multifunction chip integrates a multiple-port switch with bandpass filter functions in a single chip. The switchable resonators are formed by quarter-wavelength stepped-impedance resonators wi... View full abstract»

• ### A Ten-Beam $Ka$-Band Radiometric Receiver Using Custom Designed InP MMICs at Cryogenic Temperatures

Publication Year: 2007, Page(s):2700 - 2708
Cited by:  Papers (4)
| | PDF (1662 KB) | HTML

Large ground-based radio telescopes are increasingly being equipped with multibeam feed systems to enable simultaneous observation of a larger part of the sky. The aim of the One Centimetre Receiver Array-f project, part of the European Commission funded FARADAY Programme, was to develop a high-quality science instrument to survey the sky at 1-cm wavelength, while developing technologies that woul... View full abstract»

• ### A 20-W Chireix Outphasing Transmitter for WCDMA Base Stations

Publication Year: 2007, Page(s):2709 - 2718
Cited by:  Papers (24)  |  Patents (2)
| | PDF (1640 KB) | HTML

A Chireix outphasing transmitter for Band I wideband code-division multiple-access base stations was implemented using a nonisolating power combiner and two high-efficiency saturated class-B power amplifiers for 20-W single-carrier power levels. Novel adaptive background calibration algorithms were developed and demonstrated for the mismatch calibration and phase predistortion of the two transmitt... View full abstract»

• ### Development of Sub-Millimeter-Wave Power Amplifiers

Publication Year: 2007, Page(s):2719 - 2726
Cited by:  Papers (13)
| | PDF (1670 KB) | HTML

In this paper, we present the framework for developing the first working power amplifiers at sub-millimeter-wave frequencies. The technology is made possible by an advanced InP HEMT transistor. A three-stage power amplifier is presented, which uses a binary combiner to realize a total output periphery of 80 mum and demonstrates 12-dB gain at 335 GHz, making, this the first demonstrated sub-millime... View full abstract»

• ### Human Presence Detection Using Millimeter-Wave Radiometry

Publication Year: 2007, Page(s):2727 - 2733
Cited by:  Papers (23)
| | PDF (685 KB) | HTML

A novel method of human presence detection using passive millimeter-wave (MMW) sensors is presented. The method focuses on detecting a standing human from a moving platform in a cluttered outdoor environment using MMW radiometry, which has not been attempted before. Ka-band radiometers are used in the total power mode, as well as correlation mode, which ideally responds well to self-luminous objec... View full abstract»

• ### Integrated Heterojunction Bipolar Transistor Optically Injection-Locked Self-Oscillating Opto-Electronic Mixers for Bi-Directional Fiber-Fed Wireless Applications

Publication Year: 2007, Page(s):2734 - 2739
Cited by:  Papers (1)
| | PDF (802 KB) | HTML

A 30-GHz-band third harmonic optically injection-locked self-oscillating opto-electronic mixer is implemented with a 10-GHz InP heterojunction bipolar transistor monolithic microwave integrated circuit oscillator. The monolithic self-oscillating mixer can be optically injection locked in wide operating conditions and can perform efficient frequency up- and down-conversion with low-power optical lo... View full abstract»

• ### 10-Gb/s Optical Fiber Transmission Using a Fully Analog Electronic Dispersion Compensator (EDC) With Unclocked Decision-Feedback Equalization

Publication Year: 2007, Page(s):2740 - 2746
Cited by:  Papers (9)
| | PDF (1465 KB) | HTML

A 10-Gb/s data transmission over optical fiber is limited in reach due to optical dispersion phenomena that results in inter-symbol interference. Electronic dispersion compensators employing linear and nonlinear equalization techniques are a compact, cost-effective, and adaptive alternative to optical dispersion compensating techniques and devices that are often bulky, expensive, and not adaptive.... View full abstract»

• ### Design of a Power-Amplifier Feed-Forward RF Model With Physical Knowledge Considerations

Publication Year: 2007, Page(s):2747 - 2756
Cited by:  Papers (14)
| | PDF (1169 KB) | HTML

In this paper, the design of a general feed-forward topology for modeling RF power amplifiers (PAs) is presented. It consists of producing the best nonlinear nonrecursive approximator of a feedback model which traduces the physical characteristics of general PAs. Following the procedure presented in this paper, the feed-forward structure, which has a polynomial form with memory (Volterra series), ... View full abstract»

• ### Nonlinear Distortion Analysis of Polar Transmitters

Publication Year: 2007, Page(s):2757 - 2765
Cited by:  Papers (48)  |  Patents (1)
| | PDF (902 KB) | HTML

This paper gives a comprehensive analysis of the major nonlinear distortion generation mechanisms present in modern wireless polar transmitters. Based on a simplified description of the physical operation of voltage supply modulated switching mode power amplifiers (PAs), it derives an analytical model of both the AM-AM and AM-PM distortions usually encountered on polar transmitters excited by the ... View full abstract»

• ### $K$-Band LTCC Star Mixer With Broadband IF Output Network

Publication Year: 2007, Page(s):2766 - 2772
Cited by:  Papers (5)
| | PDF (1778 KB) | HTML

This paper presents a hybrid star mixer in a surface-mount package using low-temperature co-fired ceramic technology. The frequency of operation ranges up to 32 GHz for the RF frequency with an achieved conversion loss of as low as 5 dB. The device is optimized for local oscillator (LO) drive levels of down to 7.5 dBm. Various IF output networks with an inherently low series inductance are discuss... View full abstract»

• ### Spherical Perfectly Matched Absorber for Finite-Volume 3-D Domain Truncation

Publication Year: 2007, Page(s):2773 - 2781
Cited by:  Papers (13)
| | PDF (1327 KB) | HTML

The theory of 2-D radial perfectly matched Maxwellian absorber is extended to 3-D domain truncation problems using a generalized approximate formulation of a spherical finite-volume absorber. The mathematical modeling of the spherical absorber is presented and update equations are derived. The performance of the absorber is characterized with numerical experiments. As practical application of the ... View full abstract»

• ### Live Electrooptic Imaging System Based on Ultraparallel Photonic Heterodyne for Microwave Near-Fields

Publication Year: 2007, Page(s):2782 - 2791
Cited by:  Papers (32)  |  Patents (1)
| | PDF (2436 KB) | HTML

We report on 100 x 100 pixel live electrooptic imaging (LEI), which is real-time imaging of electrical signals on a microwave circuit. The circuit's electric near-fields can be depicted in real time on a display screen at video frame rates as high as 30 frames/s. This system is based on photonics technology in which electric near-fields are applied to an electrooptic crystal plate and a sensing li... View full abstract»

• ### A New Planar Artificial Transmission Line and Its Applications to a Miniaturized Butler Matrix

Publication Year: 2007, Page(s):2792 - 2801
Cited by:  Papers (74)
| | PDF (2056 KB) | HTML

A miniaturized quadrature hybrid coupler, a rat-race coupler, and a 4 times 4 Butler matrix based on a newly proposed planar artificial transmission line are presented in this paper for application in ultra-high-frequency (UHF) radio-frequency identification (RFID) systems. This planar artificial transmission line is composed of microstrip quasi-lumped elements and their discontinuities and is cap... View full abstract»

• ### Design and Analysis of Stacked Power Amplifier in Series-Input and Series-Output Configuration

Publication Year: 2007, Page(s):2802 - 2812
Cited by:  Papers (20)  |  Patents (2)
| | PDF (797 KB) | HTML

The stacked-device power-combining technique is a proven method to increase the output power and load impedance of a power amplifier (PA) simultaneously. The series-input configuration is physically realizable for multicell stacked device configuration in monolithic circuits. The series-input and series-output stack configuration is rigorously analyzed and proven to increase both the input impedan... View full abstract»

• ### A Multigigabit Millimeter-Wave Communication System With Improved Spectral Efficiency

Publication Year: 2007, Page(s):2813 - 2821
Cited by:  Papers (69)  |  Patents (2)
| | PDF (1828 KB) | HTML

This paper describes the details of a new method for improved spectral efficiency in a multigigabit millimeter-wave communication system, and the outdoor and indoor test results of a 6-Gbit/s concept demonstrator in the 81-86-GHz frequency band. Achieved aggregate data with a 2.4-bit/s/Hz spectral efficiency was the fastest wireless transmission published thus far with a carrier-grade bit error ra... View full abstract»

• ### A 2.4-GHz Fully Integrated ESD-Protected Low-Noise Amplifier in 130-nm PD SOI CMOS Technology

Publication Year: 2007, Page(s):2822 - 2831
Cited by:  Papers (12)
| | PDF (1814 KB) | HTML

This paper reviews and analyzes a fully integrated electrostatic discharge (ESD)-protected low-noise amplifier (LNA) for low-power and narrowband applications using a cascode inductive source degeneration topology, designed and fabricated in 130-nm CMOS silicon-on-insulator technology. The designed LNA shows 13-dB power gain at 2.4 GHz with a noise figure of 3.6 dB and input return loss of -13 dB ... View full abstract»

• ### Frequency and Phase Difference Control Using Fractional- $N$ PLL Synthesizers by Composition of Control Data

Publication Year: 2007, Page(s):2832 - 2838
Cited by:  Papers (10)  |  Patents (1)
| | PDF (751 KB) | HTML

This paper proposes novel frequency and phase difference control of output signals in multiple fractional-N PLL (F-PLL) synthesizers sharing a reference signal. In the proposed F-PLL synthesizers, frequency control and phase difference control can be performed independently through cyclic shift and composition of control data of frequency dividers. The proposed synthesizers are demonstrated... View full abstract»

• ### Substrate Integrated Waveguide-to-Microstrip Transition in Multilayer Substrate

Publication Year: 2007, Page(s):2839 - 2844
Cited by:  Papers (25)  |  Patents (3)
| | PDF (839 KB) | HTML

This paper presents a novel transition between a microstrip line and a substrate integrated waveguide (SIW) in a multilayer substrate design environment. In order to achieve a low-loss broadband response, the transition, consisting of a tapered or multisectional ridged SIW and a tapered microstrip line, is modeled and designed by simultaneously considering both impedance matching and field matchin... 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..

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