# IEEE Transactions on Microwave Theory and Techniques

## Issue 1  Part 2 • Jan. 2013

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 47
• ### Front cover

Publication Year: 2013, Page(s): C1
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2013, Page(s): C2
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Publication Year: 2013, Page(s):337 - 338
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• ### Editorial: Comments About the 2012 International Microwave Symposium Special Issue and Conference Papers Versus Journal Papers

Publication Year: 2013, Page(s):339 - 340
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• ### New Single-Source Surface Integral Equations for Scattering on Penetrable Cylinders and Current Flow Modeling in 2-D Conductors

Publication Year: 2013, Page(s):341 - 350
Cited by:  Papers (12)
| |PDF (2276 KB) | HTML

The traditional volume electric field integral equation (IE) used for solution of full-wave scattering problems on penetrable scatterers of arbitrary cross section and its magnetostatic counterpart commonly utilized for the resistance and inductance extraction problem are reduced to a novel derivative-free single-source surface IE. The reduction of volume to surface IE is based on representation o... View full abstract»

• ### A Spatially Filtered Finite-Difference Time-Domain Scheme With Controllable Stability Beyond the CFL Limit: Theory and Applications

Publication Year: 2013, Page(s):351 - 359
Cited by:  Papers (17)
| |PDF (1706 KB) | HTML

A 3-D finite-difference time-domain (FDTD) scheme with controllable stability beyond the stability limit of FDTD is presented. The key to controlling the FDTD stability limit is a spatial filter applied to the electromagnetic field vectors in order to ensure that unstable spatial harmonics are eliminated. A significant advantage of this approach is the simplicity of its incorporation into existing... View full abstract»

• ### Fast Simulation of Microwave Circuits With Nonlinear Terminations Using High-Order Stable Methods

Publication Year: 2013, Page(s):360 - 371
Cited by:  Papers (5)
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This paper describes a new method for transient simulation, using high-order stable methods, of microwave structures modeled using a large number of lumped components. The target of the proposed technique is circuit-based simulation of the large linear circuits that arise from full-wave modeling of distributed structures, such as transmission lines and microstrip elements, along with the terminati... View full abstract»

• ### The Design of Parallel Connected Filter Networks With Nonuniform $Q$ Resonators

Publication Year: 2013, Page(s):372 - 381
Cited by:  Papers (9)
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A method of designing parallel connected lossy filter networks is introduced. In a parallel connected filter network, each resonator represents one of the poles of the admittance parameters and is independent of the others, thus the dissipation of each resonator can be considered separately. It is observed that some of the resonators are more critical than the others in determining the filter perf... View full abstract»

• ### Ku-Band High Power Dielectric Resonator Filters

Publication Year: 2013, Page(s):382 - 392
Cited by:  Papers (4)
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In this paper, a novel dielectric-resonator filter configuration is presented. The new filter offers superior Q and wider spurious-mode free range at Ku-Band. Moreover, it offers 70% mass savings over the TE114 dual mode designs and over 50% footprint reduction compared with the TE113 dual-mode implementations. These characteristics make this technology well suited for the ou... View full abstract»

• ### High-$Q$ Narrowband Tunable Combline Bandpass Filters Using MEMS Capacitor Banks and Piezomotors

Publication Year: 2013, Page(s):393 - 402
Cited by:  Papers (26)
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This paper presents the design and implementation of a new class of evanescent tunable combline bandpass filters based on electronic tuning with the use of RF microelectromechanical systems (RF-MEMS) capacitor banks and also mechanical tuning using piezomotors. The use of microelectromechanical systems tuning circuit results in compact implementation of the proposed filters with high-Q and ... View full abstract»

• ### Design and Analysis of Lithium–Niobate-Based High Electromechanical Coupling RF-MEMS Resonators for Wideband Filtering

Publication Year: 2013, Page(s):403 - 414
Cited by:  Papers (69)
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This paper reports on a new type of microresonators enabled by micromachining of ion sliced X -cut LiNbO3 thin films. In operation, the device is excited into lateral vibrations, thus allowing the center frequency to be determined by the lithographically defined dimensions of the excitation electrodes. The demonstrated device has a high electromechanical coupling (kt<... View full abstract»

• ### Large-Signal Performance and Modeling of Intrinsically Switchable Ferroelectric FBARs

Publication Year: 2013, Page(s):415 - 422
Cited by:  Papers (14)
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This paper presents the large-signal performance of intrinsically switchable ferroelectric thin-film bulk acoustic resonators (FBARs), as well as their modeling procedure. There has been a growing interest in ferroelectric FBARs due to their electric-field-dependent permittivity and electric-field-induced piezoelectricity. Ferroelectric barium-strontium-titanate (BaxSr(1-x... View full abstract»

• ### Simultaneous Electric and Magnetic Two-Dimensionally Tuned Parameter-Agile SIW Devices

Publication Year: 2013, Page(s):423 - 435
Cited by:  Papers (18)
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A concept of simultaneous electric (E) and magnetic ( H) 2-D tuning is presented, demonstrated, and applied for the first time through the theoretical and experimental studies of parameter-agile substrated integrated waveguide (SIW) devices. First of all, a two-dimensionally tuned SIW cavity is introduced as a building block. Considering only electric tuning with varactor diodes, no ... View full abstract»

• ### Air-Filled Parallel-Plate Cylindrical Modified Luneberg Lens Antenna for Multiple-Beam Scanning at Millimeter-Wave Frequencies

Publication Year: 2013, Page(s):436 - 443
Cited by:  Papers (17)
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This paper presents a novel design of cylindrical modified Luneberg lens antenna at millimeter-wave (mm-wave) frequencies in which no dielectric is needed as lens material. The cylindrical modified Luneberg lens consists of two air-filled, almost-parallel plates whose spacing continuously varies with the radius to simulate the general Luneberg's Law. A planar antipodal linearly-tapered slot antenn... View full abstract»

• ### Nonlinear Electrothermal GaN HEMT Model Applied to High-Efficiency Power Amplifier Design

Publication Year: 2013, Page(s):444 - 454
Cited by:  Papers (30)
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Gallium Nitride (GaN) high electron-mobility transistors (HEMTs) can operate at very high power-density levels, which may cause a significant temperature rise in the transistor channel. In addition, surface and substrate energy levels, or “traps,” can cause strong dispersion effects from pulsed I-V down to dc timescales. Such effects, for both simulation accuracy and device reliabili... View full abstract»

• ### High-Power RF MEMS Switched Capacitors Using a Thick Metal Process

Publication Year: 2013, Page(s):455 - 463
Cited by:  Papers (7)
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This paper presents the design and characterization of a high-power RF microelectromechanical systems switched capacitor. The switch is based on a 4-μm-thick metal plate and four symmetrical springs. The design has low sensitivity to residual stress and stress gradients. -parameter measurements result in Cu = 0.01 pF, Cd = 0.63 pF (Cr = 6.3), a power handling >;10 W using hot switching c... View full abstract»

• ### Intelligent Bipolar Control of MEMS Capacitive Switches

Publication Year: 2013, Page(s):464 - 471
Cited by:  Papers (8)
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Closed-loop control of microelectromechanical systems (MEMS) capacitive switches was demonstrated by using an intelligent CMOS circuit. The control was based on fine tuning the bias magnitude of the switches according to the difference between sensed and targeted capacitances. Innovative designs were used to allow the CMOS circuit to sense low capacitance and to handle high voltage. The CMOS die o... View full abstract»

• ### General Phase-Noise Analysis From the Variance of the Phase Deviation

Publication Year: 2013, Page(s):472 - 481
Cited by:  Papers (7)
| |PDF (2166 KB) | HTML

For an accurate calculation of close-to-carrier phase noise, the nonlinearity of the perturbed oscillator with respect to the common phase deviation must be taken into account. Existing analysis methods are based on the decoupling of this variable from the perturbed oscillator system and the resulting spectrum can only exhibit slopes of - 30 or - 20 dB per decade at sufficiently large frequency of... View full abstract»

• ### Stability and Phase-Noise Analysis of Pulsed Injection-Locked Oscillators

Publication Year: 2013, Page(s):482 - 491
Cited by:  Papers (4)
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An investigation of the stability and phase noise of oscillators driven with pulsed signals is presented. The aim is to generalize the theory of sinusoidal injection-locked oscillators to the case of oscillators driven with multiharmonic sources. As will be shown, under the pulse injection, a multiresonance phenomenon occurs in the circuit, leading to broad ultra-subharmonic synchronization bands.... View full abstract»

• ### 216- and 316-GHz 45-nm SOI CMOS Signal Sources Based on a Maximum-Gain Ring Oscillator Topology

Publication Year: 2013, Page(s):492 - 504
Cited by:  Papers (20)
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This paper introduces a maximum-gain ring oscillator (MGRO) topology that maximizes the power gain (PG) achieved by the active devices in a ring oscillator using appropriately designed passive matching networks to maximize the frequency of oscillation. A design methodology is provided along with expressions for the passive matching elements. In the absence of passive losses, the topology can oscil... View full abstract»

• ### A 2-D Distributed Power Combining by Metamaterial-Based Zero Phase Shifter for 60-GHz Power Amplifier in 65-nm CMOS

Publication Year: 2013, Page(s):505 - 516
Cited by:  Papers (38)
| |PDF (2372 KB) | HTML

Based on a newly introduced zero phase shifter (ZPS), a 2-D distributed power-combining network is developed in this paper to provide simultaneous distributed amplification and power combining. One type of metamaterial, called the composite right/left-handed transmission line, is deployed to design ZPS with detailed considerations to achieve low loss and wideband performance. The proposed 2-D dist... View full abstract»

• ### A Large-Swing 112-Gb/s Selector-Driver Based on a Differential Distributed Amplifier in InP DHBT Technology

Publication Year: 2013, Page(s):517 - 524
Cited by:  Papers (13)
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We report a 2:1 selector-driver based on a differential distributed amplifier realized in a 0.7-μ m indium phosphide double heterojunction bipolar transistor technology. From transistors reaching fT/fmax of 320/380 GHz and a breakdown voltage (BVCEO) of 4.5 V, the selector-driver provides a differential eye amplitude of up to 6.2 and 5.9 VPP at up ... View full abstract»

• ### 2-W Broadband GaN Power-Amplifier RFIC Using the $f_{T}$ Doubling Technique and Digitally Assisted Distortion Cancellation

Publication Year: 2013, Page(s):525 - 532
Cited by:  Papers (6)
| |PDF (1084 KB) | HTML

The method of derivative superposition is enhanced with digital techniques to cancel the intermodulation distortion generated by a 2-W power amplifier (PA) RF integrated circuit over a broad band of 6 GHz. Two amplifiers were fabricated and tested: a baseline PA without distortion cancellation and a PA with digitally assisted distortion cancellation to demonstrate the effectiveness of the new tech... View full abstract»

• ### A Modified Doherty Power Amplifier With Extended Bandwidth and Reconfigurable Efficiency

Publication Year: 2013, Page(s):533 - 542
Cited by:  Papers (55)  |  Patents (1)
| |PDF (2251 KB) | HTML

This paper derives the theory and presents measurements of a new power amplifier based on the Doherty power amplifier topology. It is theoretically shown that the proposed amplifier can simultaneously provide high efficiency at both full output power and at output power back-off, over a much improved bandwidth compared to the conventional Doherty power amplifier. It is also shown that the proposed... View full abstract»

• ### Envelope-Tracking Two-Stage Power Amplifier With Dual-Mode Supply Modulator for LTE Applications

Publication Year: 2013, Page(s):543 - 552
Cited by:  Papers (40)  |  Patents (3)
| |PDF (1982 KB) | HTML

This paper presents an envelope tracking power amplifier (ET PA) using a dual-mode supply modulator for handset application. The supply modulator has a combined structure with a linear amplifier and a switching amplifier. The dual-mode supply modulator operates in high-power mode and low-power mode by providing the supply voltage of the linear amplifier of 5 and 2.5 V, respectively. For 1.74-GHz l... 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