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# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 25 of 26

Publication Year: 2012, Page(s):C1 - C4
Cited by:  Papers (1)
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2012, Page(s): C2
| PDF (45 KB)
• ### Rigorous Derivation and Fast Solution of Spatial-Domain Green's Functions for Uniaxial Anisotropic Multilayers Using Modified Fast Hankel Transform Method

Publication Year: 2012, Page(s):205 - 217
Cited by:  Papers (2)
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A fast solution for rigorously deriving and calculating spatial-domain dyadic Green's functions for the planar multilayers of uniaxial media has been established based on the modified fast Hankel transform (MFHT) method. The kDB coordinate system is exploited and integrated with the wave iterative technique to obtain the spectral-domain Green's function. This algorithm relies on the accurate expre... View full abstract»

• ### ParAFEMCap: A Parallel Adaptive Finite-Element Method for 3-D VLSI Interconnect Capacitance Extraction

Publication Year: 2012, Page(s):218 - 231
Cited by:  Papers (6)
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Parasitic extraction is one of the key techniques in very large scale integration design that has been widely used to build the equivalent-circuit model of interconnects. In this paper, a parallel adaptive finite-element method (AFEM) for capacitance extraction of large-scale interconnects (ParAFEMCap) is developed to provide extremely high parallel scalability and numerical accuracy. First, the p... View full abstract»

• ### Efficient Analysis of Substrate Integrated Waveguide Devices Using Hybrid Mode Matching Between Cylindrical and Guided Modes

Publication Year: 2012, Page(s):232 - 243
Cited by:  Papers (16)
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In this paper, a new method to efficiently analyze substrate integrated waveguide (SIW) based devices with multiple accessing ports is presented. The problem is considered as a 2-D electromagnetic problem assuming no field variation normal to the dielectric substrate. The incident and scattered fields from each circular cylinder are expanded with cylindrical modes, and the fields in the waveguide ... View full abstract»

• ### A Quasi Elliptic Function 1.75–2.25 GHz 3-Pole Bandpass Filter With Bandwidth Control

Publication Year: 2012, Page(s):244 - 249
Cited by:  Papers (31)
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A three-pole microstrip combline filter with a center frequency of 1.75-2.25 GHz and a tunable bandwidth of 70-100 MHz is presented. In this design, an extra transmission zero is created using a non-adjacent resonator coupling, and is placed on the lower side of the passband to improve the filter selectivity. The filter bandwidth is also tuned by controlling the non-adjacent resonator coupling. Th... View full abstract»

• ### Analytical Design of Two-Mode Dual-Band Filters Using E-Shaped Resonators

Publication Year: 2012, Page(s):250 - 260
Cited by:  Papers (23)
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This paper presents a novel analytical approach for designing two-mode dual-band bandpass filters using E-shaped resonators. Based on the dual-band coupling matrix, the dimensions of the filter configuration are extracted via even- and odd-mode analysis of E-shaped resonators. The back-to-back E-shaped resonators provide the out-of-phase property by coupling at specific edges, and it produces good... View full abstract»

• ### Extremely Miniaturized Bandpass Filters Based on Asymmetric Coupled Lines With Equal Reactance

Publication Year: 2012, Page(s):261 - 269
Cited by:  Papers (10)
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This paper demonstrates extremely miniaturized bandpass filters based on asymmetric coupled lines and equal reactance. By reactively loading asymmetric coupled lines while the first and the last inverters are eliminated, the proposed method overcomes the limitation of previous methods to achieve extreme miniaturization. Furthermore, the utilization of asymmetric coupled lines allows the method to ... View full abstract»

• ### Power Handling of Electrostatic MEMS Evanescent-Mode (EVA) Tunable Bandpass Filters

Publication Year: 2012, Page(s):270 - 283
Cited by:  Papers (19)
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This paper presents the first theoretical and experimental study on the power handling capabilities of electrostatically tunable MEMS cavity filters. The theoretical analysis indicates that the frequency-dependent RF voltage inside a narrowband filter may play an important role in the generation of electromechanical nonlinearities such as frequency response distortion, frequency shift, and bifurca... View full abstract»

• ### A $W$ -Band Micromachined 3-D Cavity-Backed Patch Antenna Array With Integrated Diode Detector

Publication Year: 2012, Page(s):284 - 292
Cited by:  Papers (3)  |  Patents (2)
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A 2 × 2 array of W-band air-dielectric cavity-backed patch antennas is presented. The array and its components are fabricated using a sequential surface micromachining technique known as the Polystrata process. Each antenna has a simulated 4.1% 10-dB return-loss bandwidth of about 94.5 GHz, a radiation efficiency of 95%, and a gain of 8.3 dB at broadside with a 76° 3-dB beamwi... View full abstract»

• ### Integration of Optical Waveguide Array and Multilayer Substrate Integrated Waveguide for Electrooptical Modulator

Publication Year: 2012, Page(s):293 - 300
Cited by:  Papers (2)
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Integration of an optical waveguide array using four waveguides in a Mach-Zehnder (MZ) structure and a two-layer low-loss substrate integrated waveguide (SIW) structure is presented to propose a new class of electrooptical phase modulators. In the proposed SIW modulator, synthesized rectangular waveguide in planar form is used as “electrodes” to guide millimeter-wave signals instead ... View full abstract»

• ### An Ultra-Compact, Linearly-Controlled Variable Phase Shifter Designed With a Novel RC Poly-Phase Filter

Publication Year: 2012, Page(s):301 - 310
Cited by:  Papers (12)
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This paper proposes a new vector-sum type variable-phase shifter (VPS) topology for predistorting the phase of a modulated signal for an analog-predistortion power amplifier system. It has a continuous linear-in-degree control curve over a 90° phase-control range and has the smallest size among all those proposed CMOS works. The phase shifter utilizes an improved RC poly-phase filter to gen... View full abstract»

• ### An Ultra-Low-Voltage and Low-Power $times$2 Subharmonic Downconverter Mixer

Publication Year: 2012, Page(s):311 - 317
Cited by:  Papers (22)
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An 8.6 GHz × 2 subharmonic mixer with complementary current-reuse to enable ultra-low-voltage and low-power operation is presented. The RF transconductance stage of the mixer uses inductive source degeneration and the mixing core uses four transistors that are driven by a quadrature LO signal. A Volterra series analysis is carried out to determine the optimal gate biasing of the transconduct... View full abstract»

• ### A $X$ -Band Capacitor-Coupled QVCO Using Sinusoidal Current Bias Technique

Publication Year: 2012, Page(s):318 - 328
Cited by:  Papers (8)
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This study introduces an X -band quadrature voltage-controlled oscillator (QVCO) based on two novel techniques: capacitor coupling and sinusoidal current biasing. The proposed QVCO achieves an excellent figure-of-merit (FOM) of 190.5 dBc/Hz. This study analyzes the properties of this QVCO, including its phase noise, oscillation frequency, and amplitude. To generate quadrature phase signals ... View full abstract»

• ### A CMOS Noise-Squeezing Amplifier

Publication Year: 2012, Page(s):329 - 339
Cited by:  Papers (3)
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Noise squeezing occurs through phase-sensitive gain implemented by a parametric process in a nonlinear LC resonator. This process enhances the sensitivity for one quadrature component of an input signal at the expense of degrading the sensitivity for the other quadrature. We demonstrate an 8.75-GHz parametric resonant amplifier in a 0.13-μm CMOS process, which provides gain of 21 dB and 12 ... View full abstract»

• ### Integrated Bias Circuits of RF CMOS Cascode Power Amplifier for Linearity Enhancement

Publication Year: 2012, Page(s):340 - 351
Cited by:  Papers (49)  |  Patents (1)
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This paper presents a highly linear differential cascode CMOS power amplifier (PA) with gate bias circuits in Common Source (CS) and Common Gate (CG) amplifiers. The proposed Class-D bias circuit at the gate of a CS amplifier injects a reshaped envelope signal only when the envelope signal is above a certain threshold voltage. This improves the linearity of the PA without significantly degrading t... View full abstract»

• ### A High-Efficiency Low-Distortion GaN HEMT Doherty Power Amplifier With a Series-Connected Load

Publication Year: 2012, Page(s):352 - 360
Cited by:  Papers (14)
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A distortion reduction method for a newly developed GaN HEMT Doherty amplifier (DA) with a series-connected load operating at 1.8 GHz is presented. Differing from conventional DAs with shunt-connected loads, the newly developed DA with a series-connected load has high input impedance, resulting in low-loss impedance matching and high-efficiency power combining. A distortion cancellation mechanism ... View full abstract»

• ### Digital Predistortion for High Efficiency Power Amplifier Architectures Using a Dual-Input Modeling Approach

Publication Year: 2012, Page(s):361 - 369
Cited by:  Papers (16)  |  Patents (1)
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In this paper, a novel model is proposed for dual-input high efficiency power amplifier (PA) architectures, such as envelope tracking (ET) and varactor-based dynamic load modulation (DLM). Compared to the traditional single-input modeling approach, the proposed model incorporates the baseband supply voltage/load control as an input. This advantage makes the new approach capable to achieve maximize... View full abstract»

• ### A Nonlinear Lattice for High-Amplitude Picosecond Pulse Generation in CMOS

Publication Year: 2012, Page(s):370 - 380
Cited by:  Papers (7)
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In this paper, we study an electrical nonlinear medium consisting of voltage-dependent capacitors and inductors to generate sharp pulses from a lower frequency sinusoid. First, we analyze the optimum conditions for maximum harmonic generation in a uniform nonlinear line. Next, we extend the nonlinear line to a two-dimensional nonlinear lattice that is compatible with CMOS technology. Compared with... View full abstract»

• ### A 0.01–8-GHz (12.5 Gb/s) 4 $,times,$4 CMOS Switch Matrix

Publication Year: 2012, Page(s):381 - 386
Cited by:  Papers (3)
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This paper presents a 0.01-8-GHz 4×4 switch matrix in 0.13-μm CMOS technology. A deep n-well series-shunt-series switch is chosen as the switching core, and the transistor sizes are optimized for low insertion loss and high isolation up to 8 GHz. Full electromagnetic analysis is also performed on the switching core to result in a compact design. The 4×4 switch matrix shows a m... View full abstract»

• ### 0.6–3-GHz Wideband Receiver RF Front-End With a Feedforward Noise and Distortion Cancellation Resistive-Feedback LNA

Publication Year: 2012, Page(s):387 - 392
Cited by:  Papers (17)
| | PDF (300 KB) | HTML

A novel wideband receiver RF front-end, including a resistive negative feedback wideband low-noise amplifier (LNA) with feedforward noise and distortion cancellation and a current commutating down conversion passive mixer with biquad trans-impedance amplifier, is presented in this paper. In comparison to conventional resistive negative feedback LNAs, theory analysis and experimental results for th... View full abstract»

• ### Compact Vital Signal Sensor Using Oscillation Frequency Deviation

Publication Year: 2012, Page(s):393 - 400
Cited by:  Papers (13)
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In this paper, a compact vital signal sensing method using oscillation frequency deviation at 2.4-GHz industrial-scientific-medical band is proposed to detect vital signals, such as heartbeat and respiration signal. The oscillation circuit of the proposed vital sensor system has been realized by a planar resonator, which functions as a positive feedback element, as well as a near-field radiator to... View full abstract»

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

Publication Year: 2012, Page(s): 401
| PDF (34 KB)
• ### Special Issue on Biomedical Applications of RF/Microwave Technologies

Publication Year: 2012, Page(s): 402
| PDF (137 KB)

Publication Year: 2012, Page(s):403 - 404
| PDF (1564 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..

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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