# IEEE Transactions on Microwave Theory and Techniques

## Issue 12  Part 2 • Dec. 2006

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 41
• ### [Front cover]

Publication Year: 2006, Page(s): C1
| |PDF (2304 KB)
• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2006, Page(s): C2
| |PDF (41 KB)

Publication Year: 2006, Page(s):4269 - 4270
| |PDF (51 KB)
• ### An Integrated Subharmonic Coupled-Oscillator Scheme for a 60-GHz Phased-Array Transmitter

Publication Year: 2006, Page(s):4271 - 4280
Cited by:  Papers (29)  |  Patents (24)
| |PDF (2375 KB) | HTML

This paper describes the design of an integrated coupled-oscillator array in SiGe for millimeter-wave applications. The design focuses on a scalable radio architecture where multiple dies are tiled to form larger arrays. A 2 times 2 oscillator array for a 60-GHz transmitter is fabricated with integrated power amplifiers and on-chip antennas. To lock between multiple dies, an injection-locking sche... View full abstract»

• ### Novel Approach to the Synthesis of Microwave Diplexers

Publication Year: 2006, Page(s):4281 - 4290
Cited by:  Papers (47)  |  Patents (5)
| |PDF (574 KB) | HTML

A procedure for synthesizing microwave diplexers is presented. It is based on the evaluation of the characteristic polynomials of the diplexer including the three-port junction connecting the TX and RX filters (two types of junctions are considered, suitable for waveguide and coaxial diplexers modeling). The novel method is particularly suited for small separation between the two diplexer channels... View full abstract»

• ### High-Speed Digital-to-Analog Converter Using Schottky Diode Samplers

Publication Year: 2006, Page(s):4291 - 4296
| |PDF (531 KB) | HTML

A new digital-to-analog converter (DAC) structure employing Schottky diode samplers has been developed for very high-speed operation. Instead of switching used for conventional DACs, sampling of a digital bit stream is employed to retrieve the analog signals based on sampling theory. The sampled signals are added using an R-2R resistive ladder network. The samplers are designed to provide impedanc... View full abstract»

• ### Uniaxial and Radial Anisotropy Models for Finite-Volume Maxwellian Absorber

Publication Year: 2006, Page(s):4297 - 4304
Cited by:  Papers (10)
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The uniaxial finite-volume Maxwellian absorber used as a perfectly matched layer is extended to incorporate radial anisotropy for modeling cylindrical geometries. Theoretical background and practical applications of both uniaxial and radial absorber models are presented. Both these models employ spatially and temporally co-located electromagnetic field quantities in an unstructured mesh. The uniax... View full abstract»

• ### Sparse Macromodeling for Parametric Nonlinear Networks

Publication Year: 2006, Page(s):4305 - 4315
Cited by:  Papers (3)
| |PDF (535 KB) | HTML

Model-order reduction has proven to be an effective tool for addressing the simulation complexities of the modern microsystem such as the ones arising due to large interconnect networks. Traditional model-order reduction methods are frequency-domain methods and are, therefore, limited to linear networks. Recently, time-domain model-order reduction was developed extending this concept to nonlinear ... View full abstract»

• ### Theoretical Justification of Space-Mapping-Based Modeling Utilizing a Database and On-Demand Parameter Extraction

Publication Year: 2006, Page(s):4316 - 4322
Cited by:  Papers (37)
| |PDF (492 KB) | HTML

We present a theoretical justification of a recently introduced surrogate modeling methodology based on space mapping (SM) that relies on an available database and on-demand parameter extraction. Fine-model data, the so-called base set, is assumed available in the region of interest. To evaluate the surrogate, we perform parameter extraction with weighting coefficients dependent on the distance be... View full abstract»

• ### Dynamic Deviation Reduction-Based Volterra Behavioral Modeling of RF Power Amplifiers

Publication Year: 2006, Page(s):4323 - 4332
Cited by:  Papers (209)  |  Patents (5)
| |PDF (725 KB) | HTML

A new representation of the Volterra series is proposed, which is derived from a previously introduced modified Volterra series, but adapted to the discrete time domain and reformulated in a novel way. Based on this representation, an efficient model-pruning approach, called dynamic deviation reduction, is introduced to simplify the structure of Volterra-series-based RF power amplifier behavioral ... View full abstract»

• ### Low-Loss Differential Semicoaxial Interconnects in CMOS Process

Publication Year: 2006, Page(s):4333 - 4340
Cited by:  Papers (9)
| |PDF (680 KB) | HTML

Design, characterization, and modeling of differential semicoaxial interconnects based on a standard 0.18-mum CMOS process are presented for the first time. The differential semicoaxial line shows a low differential-mode attenuation constant of ~1.00 dB/mm at 50 GHz and a slow-wave factor above 3.1 over a wide frequency range. The characteristics of differential semicoaxial lines for differential ... View full abstract»

• ### An Empirical Bipolar Device Nonlinear Noise Modeling Approach for Large-Signal Microwave Circuit Analysis

Publication Year: 2006, Page(s):4341 - 4352
Cited by:  Papers (22)
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An empirical bipolar transistor nonlinear noise model for the large-signal (LS) noise analysis of microwave circuits is described. The model is derived according to the charge-controlled nonlinear noise behavioral modeling approach, and includes nonlinearly controlled equivalent noise (EN) generators describing the low-frequency (LF) noise up-conversion encountered in LS RF operation. LS-modulated... View full abstract»

• ### Multiport-Amplifier-Based Architecture Versus Classical Architecture for Space Telecommunication Payloads

Publication Year: 2006, Page(s):4353 - 4361
Cited by:  Papers (17)
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This paper discusses the suitability of using a multiport amplifier (MPA) for a power section of space telecommunication payloads with power flexibility requirements. The performances of an MPA-based architecture are compared to those of a classical amplification architecture having one power amplifier per beam. This study is based on a 4 times 4 Ka-band MPA composed of four paralleled traveling-w... View full abstract»

• ### Monolithic Broadband Gilbert Micromixer With an Integrated Marchand Balun Using Standard Silicon IC Process

Publication Year: 2006, Page(s):4362 - 4371
Cited by:  Papers (48)
| |PDF (1143 KB) | HTML

A single-ended wideband downconversion Gilbert micromixer is demonstrated in this paper using 0.35-mum SiGe BiCMOS technology. A transimpedance amplifier with resistive feedback is utilized in the IF stage while a broadband Marchand balun is employed to generate wideband differential local oscillator signals. The planar Marchand balun topology employed in this paper can generate truly balanced sig... View full abstract»

• ### Design and Analysis of Low Flicker-Noise CMOS Mixers for Direct-Conversion Receivers

Publication Year: 2006, Page(s):4372 - 4380
Cited by:  Papers (98)
| |PDF (1784 KB) | HTML

This paper presents the design and analysis of low flicker-noise RF mixers in a 0.18-mum CMOS process for C-band direct-conversion receivers. The low flicker-noise mixers are implemented by incorporating a double-balanced Gilbert-type configuration, the RF leakageless current bleeding technique, and the resonating technique for the tail capacitance. First, a double-balanced Gilbert-type mixer usin... View full abstract»

• ### Silicon-Integrated Differential Bandpass Filters Based on Recursive and Channelized Principles and Methodology to Compute Their Exact Noise Figure

Publication Year: 2006, Page(s):4381 - 4396
Cited by:  Papers (9)  |  Patents (2)
| |PDF (2034 KB) | HTML

In this paper, two silicon-integrated differential active bandpass filters are presented. The first one is a recursive filter based on a cellular approach. This circuit is independently tunable in terms of power transmission gain, center frequency, and bandwidth. The chip surface is less than 1.4 mm2. For this prototype, measurements demonstrate a 1.9-2.4-GHz center-frequency tuning ran... View full abstract»

• ### Full-Wave Analysis of Inhomogeneous Deep-Trench Isolation Patterning for Substrate Coupling Reduction and $Q$-Factor Improvement

Publication Year: 2006, Page(s):4397 - 4411
Cited by:  Papers (15)  |  Patents (1)
| |PDF (2670 KB) | HTML

Full-wave analysis of deep-trench isolation patterning (DTP) is presented for substrate coupling reduction and Q-factor improvement. Effects of the buried layer (BL) doping level and grounding mechanisms on substrate coupling are analyzed. Influences of induced depletion regions on substrate coupling are investigated. Q-factor improvement of on-chip RF inductors resulting from the interruption of ... View full abstract»

• ### A Broadband Single-Stage Equivalent Circuit for Modeling LTCC Bandpass Filters

Publication Year: 2006, Page(s):4412 - 4421
Cited by:  Papers (4)
| |PDF (673 KB) | HTML

A single-stage equivalent circuit is proposed to model microwave bandpass filters (BPFs) fabricated in low-temperature co-fired ceramic (LTCC) technology up to several times its passband frequency. The equivalent circuit adopts a modified T topology with the expandable multilayer resonators to achieve an extremely large bandwidth. It can be efficiently established from the measured S-parameters us... View full abstract»

• ### Distortion Analysis of Ultra-Wideband OFDM Receiver Front-Ends

Publication Year: 2006, Page(s):4422 - 4431
Cited by:  Papers (5)
| |PDF (926 KB) | HTML

This paper presents a comprehensive analysis of the effect of nonlinearities in ultra-wideband orthogonal frequency-division multiplexing receivers. The statistical properties of a quadrature phase-shift keying baseband signal are utilized to derive closed-form expressions for the power spectral density of cross-modulation, intermodulation, and harmonic distortion products of modulated signals, ar... View full abstract»

• ### A Metric for the Quantification of Memory Effects in Power Amplifiers

Publication Year: 2006, Page(s):4432 - 4439
Cited by:  Papers (21)
| |PDF (570 KB) | HTML

This paper presents a quantitative metric for memory effects in power amplifiers (PAs) and applies it to various active device technologies and wireless system contexts. The proposed metric is mathematically founded in the dynamic two-tone distortion response, has a clear physical meaning in the important field of PA linearization and can be easily evaluated from either harmonic balance simulation... View full abstract»

• ### Hybrid Space-Discretizing Method—Method of Moments for the Analysis of Transient Interference

Publication Year: 2006, Page(s):4440 - 4447
Cited by:  Papers (8)
| |PDF (669 KB) | HTML

A new efficient hybrid method combining the transmission-line matrix (TLM) and the time-domain method of moments (MoM) is introduced for the accurate modeling of the transient interference between a perfectly conducting thin surface of arbitrary shape and a complex object exhibiting compound with arbitrary electrical properties separated by large free space. For the modeling of the conducting surf... View full abstract»

• ### InAs/AlSb HEMT and Its Application to Ultra-Low-Power Wideband High-Gain Low-Noise Amplifiers

Publication Year: 2006, Page(s):4448 - 4455
Cited by:  Papers (50)  |  Patents (1)
| |PDF (1168 KB) | HTML

Two antimonide-based compound semiconductor (ABCS) microstrip monolithic microwave integrated circuits (MMICs), i.e., single- and three-stage ultra-low-power wideband 0.3-11-GHz low-noise amplifiers (LNAs) using 0.1-mum gate-length InAs/AlSb metamorphic high electron-mobility transistors (HEMTs), have been fabricated and characterized on a GaAs substrate. The single-stage wideband LNA demonstrated... View full abstract»

• ### AlGaN/GaN $Ka$-Band 5-W MMIC Amplifier

Publication Year: 2006, Page(s):4456 - 4463
Cited by:  Papers (34)  |  Patents (3)
| |PDF (1401 KB) | HTML

A broadband Ka-band AlGaN/GaN on SiC high electron-mobility transistor monolithic-microwave integrated-circuit (MMIC) power amplifier was developed for millimeter-wave antenna applications. The 0.18-mum gate two-stage 50-Omega matched MMIC produces 13plusmn1 dB of gain from 26 to 36 GHz. At 35 GHz, the measured continuous wave (CW) saturated output power (Pout) was 4 W (5 W pulsed), ind... View full abstract»

• ### Experiment and Spectral Analysis of a Low-Power $Ka$-Band Heartbeat Detector Measuring From Four Sides of a Human Body

Publication Year: 2006, Page(s):4464 - 4471
Cited by:  Papers (102)  |  Patents (3)
| |PDF (706 KB) | HTML

The accuracy of a Ka-band physiological movement detector was tested and compared for measurements from four different body orientations and at five different distances. A rigorous spectral analysis approach is developed when previously adopted small-angle approximation model is not applicable. This theory analyzes in detail the harmonics observed in phase-modulated Ka-band Doppler radar, explaini... View full abstract»

• ### Evaluations of Specific Absorption Rate and Temperature Increase Within Pregnant Female Models in Magnetic Resonance Imaging Birdcage Coils

Publication Year: 2006, Page(s):4472 - 4478
Cited by:  Papers (53)
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This paper presents a detailed numerical study of specific absorption rate (SAR) and temperature increase calculations within pregnant female models exposed to magnetic resonance imaging (MRI). Nine pregnant female models, representing different pregnant stages, were used for this study. SAR and temperature increase within and around fetuses at different pregnancy stages were calculated for two MR... 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