# IEEE Transactions on Microwave Theory and Techniques

## Issue 12  Part 1 • Dec. 2009

This issue contains several parts.Go to:  Part 2

## Filter Results

Displaying Results 1 - 25 of 25

Publication Year: 2009, Page(s):C1 - C4
| PDF (49 KB)
• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2009, Page(s): C2
| PDF (44 KB)
• ### Technology-Independent Non-Quasi-Static Table-Based Nonlinear Model Generation

Publication Year: 2009, Page(s):2845 - 2852
Cited by:  Papers (12)
| | PDF (588 KB) | HTML

An analytical extraction of the non-quasi-static nonlinear lookup table FET model at mm-wave frequencies is demonstrated in this study. Frequency dispersion present at mm-wave frequencies is compensated for by introduction of higher order dynamics of nonlinear constituent components. Nonlinear charge- and current-sources are used as the constituent components to represent the nonlinear device wher... View full abstract»

• ### Analysis of Phase Distribution Errors in Mutually Coupled Harmonic Self-Oscillating Mixers

Publication Year: 2009, Page(s):2853 - 2861
Cited by:  Papers (1)
| | PDF (1037 KB) | HTML

The phase error distribution caused by the selection of the working point and synchronization characteristics of an array of mutually coupled harmonic self-oscillating mixers (HSOMs) in a receiving topology is studied using simplified models and a nonlinear analysis. The influence in the phase error of the synchronization phase and the mismatches between the free-running and synchronization freque... View full abstract»

• ### CMOS Distributed Amplifiers With Extended Flat Bandwidth and Improved Input Matching Using Gate Line With Coupled Inductors

Publication Year: 2009, Page(s):2862 - 2871
Cited by:  Papers (23)
| | PDF (608 KB) | HTML

This paper presents a state-of-the-art distributed amplifier with coupled inductors in the gate line. The proposed coupled inductors, in conjunction with series-peaking inductors in cascode gain stages, provide bandwidth extension with flat gain response for the amplifier without any additional power consumption. On the other hand, gate-inductor coupling improves the input matching of the amplifie... View full abstract»

• ### Two-Pole $X$ -Band-Tunable Ferroelectric Filters With Tunable Center Frequency, Fractional Bandwidth, and Return Loss

Publication Year: 2009, Page(s):2872 - 2881
Cited by:  Papers (17)
| | PDF (2498 KB) | HTML

Two two-pole X-band-tunable ferroelectric filters with constant fractional bandwidths and constant return losses are presented in this paper. The center frequency, the fractional bandwidth, and the return loss of the filters are tuned simultaneously through high-Q barium-strontium-titanate capacitors with fast switching speed. The constant fractional bandwidth is achieved while tuning the c... View full abstract»

• ### Frequency-Domain Analysis of Super-Regenerative Amplifiers

Publication Year: 2009, Page(s):2882 - 2894
Cited by:  Papers (33)
| | PDF (634 KB) | HTML

Since its invention in 1922, the super-regenerative amplifier (SRA) has been used in a variety of short-range, low-power, and/or low-cost wireless systems due to its simple implementation and excellent performance for a given power budget. Growing demand for ultralow-power receivers for short-range radios has recently reawakened an interest in the theory and design of SRAs. Building on recent work... View full abstract»

• ### Outphasing Energy Recovery Amplifier With Resistance Compression for Improved Efficiency

Publication Year: 2009, Page(s):2895 - 2906
Cited by:  Papers (52)  |  Patents (14)
| | PDF (1948 KB) | HTML

We describe a new outphasing energy recovery amplifier (OPERA) which replaces the isolation resistor in the conventional matched combiner with a resistance-compressed rectifier for improved efficiency. The rectifier recovers the power normally wasted in the isolation resistor back to the power supply, while a resistance compression network (RCN) reduces the impedance variation of the rectifier as ... View full abstract»

• ### Deriving Electromagnetic Fields From the Spinor Solution of the Massless Dirac Equation

Publication Year: 2009, Page(s):2907 - 2913
Cited by:  Papers (3)
| | PDF (347 KB) | HTML

In this paper, we present the explicit derivation of the electromagnetic (EM) field solution of Maxwell equations starting from the Dirac equation, used in describing the so-called spinor wave function of quantum particles. In particular, we show that if the four-component vector (spinor) solution of the Dirac equation for zero mass is identified with the four-potential of the EM field, then, unde... View full abstract»

• ### Propagation Constant of a Coaxial Transmission Line With Rough Surfaces

Publication Year: 2009, Page(s):2914 - 2922
Cited by:  Papers (7)
| | PDF (1021 KB) | HTML

This paper describes the accurate calculation of the propagation constant of a precision coaxial transmission line with rough plated conductors. The results are compared with previous publications and with traceable measurements of 2.4- and 1.85-mm air lines. In contrast to all tested existing procedures the present algorithm's results agree simultaneously with the real and imaginary part of the m... View full abstract»

• ### Reliable Fast Frequency Sweep for Microwave Devices via the Reduced-Basis Method

Publication Year: 2009, Page(s):2923 - 2937
Cited by:  Papers (29)
| | PDF (1294 KB) | HTML

In this paper, a reduced-basis-approximation-based model-order reduction for fast and reliable frequency sweep in the time-harmonic Maxwell's equations is detailed. Contrary to what one may expect by observing the frequency response of different microwave circuits, the electromagnetic field within these devices does not drastically vary as frequency changes in a band of interest. Thus, instead of ... View full abstract»

• ### Synthesis of Perfectly Causal Parameterized Compact Models for Planar Transmission Lines

Publication Year: 2009, Page(s):2938 - 2947
Cited by:  Papers (3)
| | PDF (457 KB) | HTML

Per-unit-length series impedance and shunt admittance are extracted from electromagnetic analysis of a transmission line at a few discrete frequencies. Compact models are synthesized from the per-unit-length extraction. The lumped models are then used to rapidly calculate characteristic impedance, effective dielectric constant, and RLGC parameters at all frequencies, including dispersion an... View full abstract»

• ### A $Ku$ -Band High-$Q$ Tunable Filter With Stable Tuning Response

Publication Year: 2009, Page(s):2948 - 2957
Cited by:  Papers (19)  |  Patents (2)
| | PDF (2165 KB) | HTML

A Ku-band tunable filter with a very stable notch level and in-band RF performance is presented in this paper. A new coupling iris configuration for stable RF performance over the tuning range is realized. The filter employs two dual-mode TE113 tunable cavity resonators with a set of flexible bellows. A tuning range of more than 500 MHz at 12 GHz while maintaining a high Q is demonstrat... View full abstract»

• ### True Inline Cross-Coupled Coaxial Cavity Filters

Publication Year: 2009, Page(s):2958 - 2965
Cited by:  Papers (21)
| | PDF (1109 KB) | HTML

In this paper, a novel true inline configuration for cross-coupled coaxial cavity filters is presented, which is characterized by a simple and compact structure, improved performance, and good tunability. Instead of using folded structures, dedicated coupling probes, or extra cavities, as required by conventional techniques, cross coupling is realized by changing the orientation of selected resona... View full abstract»

• ### Bond Wire Antenna/Feed for Operation Near 60 GHz

Publication Year: 2009, Page(s):2966 - 2972
Cited by:  Papers (21)
| | PDF (1570 KB) | HTML

A bond wire antenna/feed for use near 60 GHz is demonstrated. A gold bond wire with ~1-mil diameter is co-optimized with a bond pad to resonate at ~60 GHz. With a metal cover representing an enclosure for an electronic system (2 mm from a printed circuit board), the antenna pair gain at 10-cm separation is ~ -53 dB including the effects of two nearby bond wires located 300 ??m away. This is suffic... View full abstract»

• ### A Novel Broadband Even-Mode Matching Network for Marchand Baluns

Publication Year: 2009, Page(s):2973 - 2980
Cited by:  Papers (11)
| | PDF (847 KB) | HTML

In this paper, we present the development of an even-mode matching network for a Marchand balun to achieve 50-?? match and high isolation at the balanced ports. A very wide matching bandwidth can be accomplished with the novel addition of an open-circuit stub to the network. Experimental results demonstrate that the even-mode matched balun achieves return losses that are greater than 15 dB at the ... View full abstract»

• ### Transdirectional Coupled-Line Couplers Implemented by Periodical Shunt Capacitors

Publication Year: 2009, Page(s):2981 - 2988
Cited by:  Papers (24)
| | PDF (1286 KB) | HTML

Transdirectional coupled-line couplers have the benefit of perfect input/output isolation. However, for a coupled-line coupler to operate in transdirectional mode, both phase- and impedance-coupling are required, which is difficult to meet by traditional coupled lines. To overcome this problem, this paper presents a novel transdirectional coupled-line coupler implemented by periodically loaded cou... View full abstract»

• ### Microwave Analog Real-Time Spectrum Analyzer (RTSA) Based on the Spectral–Spatial Decomposition Property of Leaky-Wave Structures

Publication Year: 2009, Page(s):2989 - 2999
Cited by:  Papers (61)
| | PDF (1118 KB) | HTML

A novel analog real-time spectrum analyzer (RTSA) for the analysis of complex nonstationary signals (such as radar, security and instrumentation, and electromagnetic interference/compatibility signals) is presented, demonstrated, and characterized. This RTSA exploits the space-frequency mapping (spectral-spatial decomposition) property of the composite right/left-handed (CRLH) leaky-wave antenna (... View full abstract»

• ### Submillimeter Coaxial Probes for Dielectric Spectroscopy of Liquids and Biological Materials

Publication Year: 2009, Page(s):3000 - 3010
Cited by:  Papers (5)
| | PDF (795 KB) | HTML

In this study, 0.2-mm radius open-ended coaxial probes were constructed and simulated, to measure reference materials and biological media from 1 to 40 GHz. A novel full-wave 3-D model using CST Microwave's frequency-domain solver is demonstrated and the CST example model is provided online to accompany this paper. With this model, design parameters such as the minimum allowable flange radius, sho... View full abstract»

• ### Low-Cost Integrated Microwave Radiometer Front-End for Industrial Applications

Publication Year: 2009, Page(s):3011 - 3018
Cited by:  Papers (5)
| | PDF (968 KB) | HTML

The present paper experimentally investigates the potentialities of low-cost technologies (0.35-?? m SiGe BiCMOS technology for the electronics and microstrip technology for the antenna) for the fabrication of a radiometer front-end working in the X-band. The design and the characterization of the electronics receiver and of the antenna are described. In particular, after analog continuous-... View full abstract»

• ### Nonlinear Distributed Model for Bulk Acoustic Wave Resonators

Publication Year: 2009, Page(s):3019 - 3029
Cited by:  Papers (14)
| | PDF (850 KB) | HTML

This work expands the model proposed by Krimtholz, Leedom, and Matthaei (KLM) model to account for the nonlinear effects occurring in acoustic devices due to the nonlinear stiffened elasticity. We show that a nonlinear distributed capacitance in the acoustic transmission line of the KLM model can account for the distributed nature of the nonlinear effects. Specifically, we use the nonlinear telegr... View full abstract»

• ### Design Methodology and Optimization of Distributed MEMS Matching Networks for Low-Microwave-Frequency Applications

Publication Year: 2009, Page(s):3030 - 3041
Cited by:  Papers (17)
| | PDF (1938 KB) | HTML

A design methodology for the distributed microelectromechanical system (MEMS) impedance matching networks based on the optimization of the uniformity of the Smith chart coverage has been developed. The proposed approach was validated through a comparison between a traditional coplanar waveguide (CPW) design and an improved design based on a slow-wave (SW) structure. The enhanced reconfigurable imp... View full abstract»

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

Publication Year: 2009, Page(s): 3042
| PDF (23 KB)
• ### IEEE 2009 Membership Application

Publication Year: 2009, Page(s):3043 - 3044
| PDF (1212 KB)
• ### IEEE Microwave Theory and Techniques Society Information

Publication Year: 2009, Page(s): C3
| PDF (32 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