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# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 25 of 31

Publication Year: 2008, Page(s):C1 - C4
| PDF (49 KB)
• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2008, Page(s): C2
| PDF (36 KB)
• ### An Image-Band-Rejection Technique for Error Detection of On-Chip Quadrature Phases

Publication Year: 2008, Page(s):2173 - 2179
Cited by:  Papers (2)
| | PDF (816 KB) | HTML

An image-band-rejection technique for extraction of quadrature phase errors is presented in this paper. Based on the relationship between the image rejection ratio and the baseband in-phase/quadrature phase imbalance, the phase error of on-chip quadrature local-oscillation (LO) signals can be characterized without complicated measurement setup and calibration procedures while maintaining excellent... View full abstract»

• ### 2.45-GHz CMOS Reflection-Type Phase-Shifter MMICs With Minimal Loss Variation Over Quadrants of Phase-Shift Range

Publication Year: 2008, Page(s):2180 - 2189
Cited by:  Papers (23)  |  Patents (1)
| | PDF (2920 KB) | HTML

CMOS reflection-type phase shifters with minimal insertion-loss variation over quadrants of phase-shift range are presented. Two performance enhancement techniques are proposed. First, the 3-dB quadrature hybrid is designed with a phase-compensated inductively coupled hybrid. Second, an impedance-transformed pi-resonated varactor network is presented to provide a full 360deg phase range, using a M... View full abstract»

• ### Performance Study of a Class-E Power Amplifier With Tuned Series-Parallel Resonance Network

Publication Year: 2008, Page(s):2190 - 2200
Cited by:  Papers (12)
| | PDF (1466 KB) | HTML

This paper reports on a modified class-E amplifier with a tuned series-parallel resonance network. This configuration introduces two additional resonance frequencies. The design equations required to determine the optimum operations are analyzed in detail by introducing three additional boundary conditions. compared to the conventional class-E amplifier, the numerical results show that the improve... View full abstract»

• ### A Single-Ended Resistive $X$-Band AlGaN/GaN HEMT MMIC Mixer

Publication Year: 2008, Page(s):2201 - 2206
Cited by:  Papers (10)
| | PDF (777 KB) | HTML

A broadband highly linear X-band mixer in AlGaN/GaN monolithic microwave integrated circuit technology has been designed, processed, and characterized. The design is based on a 4 times 100 mum AlGaN/GaN HEMT in a single-ended circuit topology. The mixer has an IF bandwidth of 2 GHz with a conversion loss (CL) of < 8 dB across the X-band with a minimum CL of 6.9 dB at 11 GHz. The large-signal pe... View full abstract»

• ### A Differential Voltage-Controlled Integrated Antenna Oscillator Based on Double-Sided Parallel-Strip Line

Publication Year: 2008, Page(s):2207 - 2212
Cited by:  Papers (11)  |  Patents (3)
| | PDF (673 KB) | HTML

A voltage-controlled integrated antenna oscillator (VCIAO) integrating a differential voltage-controlled oscillator (VCO) with a double-sided parallel-strip line (DSPSL)-fed quasi-Yagi antenna based on the DSPSL is presented in this paper. The quasi-Yagi antenna is used not only as the radiating element, but also as the output power combiner and the resonating load of the differential VCO without ... View full abstract»

• ### Split Frequencies and Susceptances of the Three-Port Junction Circulator From an Experimental Determination of the Complex Gyrator Circuit

Publication Year: 2008, Page(s):2213 - 2220
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The adjustment of the classic three-port circulator involves an in-phase eigen-network and a pair of split counter-rotating ones. The purpose of this paper is to use some recent relationships to experimentally extract the split susceptances of the counter-rotating immittances and the susceptance slope parameter of the junction by having recourse to a one-port measurement of its complex gyrator cir... View full abstract»

• ### Millimeter-Wave Identification—A New Short-Range Radio System for Low-Power High Data-Rate Applications

Publication Year: 2008, Page(s):2221 - 2228
Cited by:  Papers (42)  |  Patents (2)
| | PDF (705 KB) | HTML

The radio-frequency identification (RFID) concept is expanded to millimeter-wave frequencies and millimeter-wave identification (MMID) in this paper. The MMID concept and a comparison with UHF RFID are presented, showing the limitations and benefits of MMID. Three feasible applications are suggested for MMID, which are: (1) wireless mass memory; (2) an automatic identification system with pointing... View full abstract»

• ### Flexible Chaotic UWB Communication System With Adjustable Channel Bandwidth in CMOS Technology

Publication Year: 2008, Page(s):2229 - 2236
Cited by:  Papers (13)
| | PDF (1304 KB) | HTML

A flexible chaotic ultra-wideband (UWB) communication system with an adjustable channel spectrum is proposed. Since the chaotic UWB bandwidth (BW) is independent of the data rate, the system band plan can be flexibly organized for various communication environments. The proposed system can overcome the spectral inefficiency and RF power wastage that is typically observed in conventional methods by... View full abstract»

• ### Digital Predistortion for Envelope-Tracking Power Amplifiers Using Decomposed Piecewise Volterra Series

Publication Year: 2008, Page(s):2237 - 2247
Cited by:  Papers (77)  |  Patents (7)
| | PDF (1563 KB) | HTML

Due to dynamic changes of supply voltage, envelope-tracking (ET) power amplifiers (PAs) exhibit very distinct characteristics in different power regions. It is very difficult to compensate the distortion induced by these amplifiers by employing conventional digital predistortion techniques. In this paper, by introducing a new piecewise Volterra model based on a vector threshold decomposition techn... View full abstract»

• ### Energy-Efficient Digital Predistortion With Lookup Table Training Using Analog Cartesian Feedback

Publication Year: 2008, Page(s):2248 - 2258
Cited by:  Papers (18)
| | PDF (1679 KB) | HTML

We demonstrate energy-efficient low-complexity adaptive linearization for wideband handset power amplifiers (PAs). Due to power overhead and complexity, traditional wideband linearization techniques such as adaptive digital predistortion (DPD) thus far have not been used for wideband handset transmitters. Our energy-efficient lookup table training strategy resulted in a training energy of 1.83 nJ/... View full abstract»

• ### Dielectric-Resonator-Based Composite Right/Left-Handed Transmission Lines and Their Application to Leaky Wave Antenna

Publication Year: 2008, Page(s):2259 - 2269
Cited by:  Papers (41)  |  Patents (3)
| | PDF (1450 KB) | HTML

Propagation and radiation characteristics of 1-D dielectric-resonator-based composite right/left-handed metamaterial structures with open mesh plates are investigated as a function of configuration parameters. The complex effective permittivity and permeability are estimated from the scattering parameters of the unit-cell structure. Based on this configuration, the single-mode transmission line is... View full abstract»

• ### Hybrid of Method of Moments and Cylindrical Eigenfunction Expansion to Study Substrate Integrated Waveguide Circuits

Publication Year: 2008, Page(s):2270 - 2276
Cited by:  Papers (40)
| | PDF (523 KB) | HTML

A hybrid method that combines method of moments (MOM) and cylindrical eigenfunction expansion is presented to study a substrate integrated waveguide circuit that consists of metallic and dielectric circular cylinders. The problem is considered as a 2-D electromagnetic problem assuming no field variation normal to the dielectric substrate. The scattered field from each circular cylinder is expanded... View full abstract»

• ### Efficient Simulation of Power Distribution Network by Using Integral-Equation and Modal-Decoupling Technology

Publication Year: 2008, Page(s):2277 - 2285
Cited by:  Papers (41)
| | PDF (1017 KB) | HTML

A novel integral-equation equivalent-circuit method is proposed for the efficient electrical simulation of the power distribution network in the electronic package and printed circuit board. The total electromagnetic field inside the power distribution network is decoupled into two modes: the parallel-plate mode sandwiched between the power and ground planes and the transmission line mode propagat... View full abstract»

• ### Active Antenna Module for Low-Cost Electronically Scanned Phased Arrays

Publication Year: 2008, Page(s):2286 - 2292
Cited by:  Papers (7)
| | PDF (824 KB) | HTML

This paper describes a low-cost compact active antenna module that includes transmit/receive/mixer electronics and a dual-polarized antenna element for half-duplex operation at 10 GHz. The system-in-package module has been fabricated in a ball-grid-array package. It is particularly suited for large low-cost low-power phased-array applications. Measurements at IF of single element gain show cross-p... View full abstract»

• ### Multiband Electromagnetic-Bandgap Structures for Applications in Small Form-Factor Multichip Module Packages

Publication Year: 2008, Page(s):2293 - 2300
Cited by:  Papers (20)
| | PDF (1594 KB) | HTML

The design and implementation of package-level electromagnetic-bandgap (EBG) structures is presented. By using spiral-based inductance-enhanced electromagnetic-bandgap structures (IE-EBGs), the relative periodicity for achieving bandgap at extremely low frequencies is substantially reduced in comparison to traditional EBGs. Using both full-wave electromagnetic simulation and experimental character... View full abstract»

• ### Fully Symmetrical Monolithic Transformer (True 1 : 1) for Silicon RFIC

Publication Year: 2008, Page(s):2301 - 2311
Cited by:  Papers (23)  |  Patents (15)
| | PDF (1736 KB) | HTML

A novel on-chip transformer configuration that gives an identical inductor pair, a higher individual coil self-resonant frequency (SRF), and excellent area efficiency are presented. This technique involves the unique way of inter-crossing the transformer's primary and secondary coils using multiple metallization layers. Truly symmetrical transformer configuration (100%) is demonstrated using minim... View full abstract»

• ### Fractal Geometries of Complementary Split-Ring Resonators

Publication Year: 2008, Page(s):2312 - 2321
Cited by:  Papers (38)
| | PDF (1725 KB) | HTML

Complementary split-ring resonators (CSRRs) are typically used as negative-permittivity particles in microstrip left-handed structures. In this paper, novel CSRRs that use a square Sierpinski fractal curve are proposed and studied in detail. It is shown that the application of fractal geometries results in significant miniaturization of the metamaterial unit cell in comparison with conventional an... View full abstract»

• ### Design and Calibration of a Large Open-Ended Coaxial Probe for the Measurement of the Dielectric Properties of Concrete

Publication Year: 2008, Page(s):2322 - 2328
Cited by:  Papers (13)
| | PDF (663 KB) | HTML

The subject of this paper is the design and calibration of an open-ended coaxial probe for the nondestructive measurement of the dielectric properties of concrete. Measurements are made between 100-900 MHz, frequencies which are often used in geophysics and civil engineering for ground penetrating radar inspection. The probe is calibrated using measurements on saline solutions in conjunction with ... View full abstract»

• ### Precise Distance and Velocity Measurement for Real Time Locating in Multipath Environments Using a Frequency-Modulated Continuous-Wave Secondary Radar Approach

Publication Year: 2008, Page(s):2329 - 2339
Cited by:  Papers (49)  |  Patents (3)
| | PDF (1216 KB) | HTML

We present a frequency-modulated continuous-wave secondary radar concept to estimate the offset in time and in frequency of two wireless units and to measure their distance relative to each other. By evaluating the Doppler frequency shift of the radar signals, the relative velocity of the mobile units is measured as well. The distance can be measured with a standard deviation as low as 1 cm. Howev... View full abstract»

• ### Substrate Integrated Waveguide Cavity Resonators for Complex Permittivity Characterization of Materials

Publication Year: 2008, Page(s):2340 - 2347
Cited by:  Papers (44)
| | PDF (792 KB) | HTML

A novel planar substrate integrated waveguide cavity resonator technique for measurement of complex permittivity is described, which has applications for dielectric measurement systems in the pharmaceutical industry. The high-Q resonant structure is a modernization of well-known measurement cells where the dielectric constant is deduced by cavity perturbation from the shift in resonant freq... View full abstract»

• ### Low-Loss 4–6-GHz Tunable Filter With 3-Bit High-$Q$ Orthogonal Bias RF-MEMS Capacitance Network

Publication Year: 2008, Page(s):2348 - 2355
Cited by:  Papers (47)  |  Patents (1)
| | PDF (992 KB) | HTML

This paper presents a low-loss 4-6-GHz 3-bit tunable filter on a quartz substrate using a high-Q 3-bit orthogonal bias RF microelectromechanical systems capacitance network. Detailed design equations for the capacitively loaded coupled lambda/2 resonators and with capacitive external coupling and source-load impedance loading are discussed. Measurements show an unloaded Q of 85-170, ... View full abstract»

• ### In-Vitro and In-Vivo Trans-Scalp Evaluation of an Intracranial Pressure Implant at 2.4 GHz

Publication Year: 2008, Page(s):2356 - 2365
Cited by:  Papers (40)  |  Patents (2)
| | PDF (1696 KB) | HTML

Elevation of intracranial pressure is one of the most important issues in neurosurgery and neurology in clinical practice. The prevalent techniques for measuring intracranial pressure require equipments that are wired, restricted to a hospital environment, and cause patient discomfort. A novel method for measuring the intracranial pressure is described. A wireless completely implantable device, op... View full abstract»

• ### Characterization of Implantable Antennas for Intracranial Pressure Monitoring: Reflection by and Transmission Through a Scalp Phantom

Publication Year: 2008, Page(s):2366 - 2376
Cited by:  Papers (78)  |  Patents (5)
| | PDF (1457 KB) | HTML

Characterization of implantable planar inverted-F antennas, designed for intracranial pressure (ICP) monitoring at 2.45 GHz, is presented. A setup, incorporating a scalp phantom emulating the implant environment and an absorbing chamber, was implemented for characterizing the antennas, in terms of their reflection coefficient (S 11), resonance frequency (fr), and transmiss... 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