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# IEEE Microwave and Wireless Components Letters

## Filter Results

Displaying Results 1 - 22 of 22

Publication Year: 2012, Page(s):C1 - C4
| PDF (41 KB)
• ### IEEE Microwave and Wireless Components Letters publication information

Publication Year: 2012, Page(s): C2
| PDF (45 KB)
• ### A Half-Mode Substrate Integrated Waveguide Ring for Two-Way Power Division of Balanced Circuit

Publication Year: 2012, Page(s):333 - 335
Cited by:  Papers (18)
| | PDF (748 KB) | HTML

A new balanced-to-balanced Gysel power divider (PD) is proposed for high-power applications, based on a half-mode substrate integrated waveguide (SIW) ring. The ring has a circumference of 2.5 λg, and one port is used for good isolation. The balanced-to-balanced component is easily designed by converting its single-ended counterpart. With the equivalent impedance defined by volta... View full abstract»

• ### A Half-Mode Substrate-Integrated-Waveguide Tunable Filter Using Packaged RF MEMS Switches

Publication Year: 2012, Page(s):336 - 338
Cited by:  Papers (12)
| | PDF (861 KB) | HTML

A two-pole, half-mode substrate-integrated-waveguide (HMSIW) RF MEMS tunable filter with 28% tuning range around 1.4 GHz is presented. The filter occupies a total area of λg × 0.7λg @ 1.4 GHz and exhibits an insertion loss of 1.2-3.4 dB, return loss better than 11 dB and quality factor of 75-140 for all tuning states, while having excellent linearity. The filter mai... View full abstract»

• ### High-Power Low-Pass Harmonic Waveguide Filter With ${rm TE}_{{rm n}0}$ -Mode Suppression

Publication Year: 2012, Page(s):339 - 341
Cited by:  Papers (8)
| | PDF (747 KB) | HTML

In this letter, a new method for the design of high-power low-pass harmonic filters in rectangular waveguide technology is proposed. Based on a 2-D arrangement of bandstop elements of sinusoidal profile, a filter with a wide spurious-free frequency response (up to the third harmonic) for the fundamental TE10 mode, as well as higher-order TEn0-mode suppression, is achieved. Co... View full abstract»

• ### A Branched Reflector Technique to Reduce Crosstalk Between Slot-Crossing Signal Lines

Publication Year: 2012, Page(s):342 - 344
Cited by:  Papers (2)
| | PDF (681 KB) | HTML

A branched reflector technique is proposed to reduce the crosstalk between the signal lines crossing common slotted reference plane. An equivalent circuit model based on lossless transmission lines is applied to characterize the coupling mechanism. The design concept of this approach is well explained and its design method is also provided by utilizing the bounce diagram with multiple discontinuit... View full abstract»

• ### High-Quality Integrated Inductors Based on Multilayered Meta-Conductors

Publication Year: 2012, Page(s):345 - 347
Cited by:  Papers (3)
| | PDF (375 KB) | HTML

We demonstrate high-quality integrated inductors built from a multilayer of alternating copper and ferromagnetic films. The multilayer acts as a meta-conductor whose effective permeability becomes nearly zero at its ferromagnetic anti-resonance frequency. This leads to a suppression of the skin effect and a significant increase in the quality factor of the device. Experiments show an up to 86% inc... View full abstract»

• ### Wideband Microstrip Bandpass Filter Based on Quadruple Mode Ring Resonator

Publication Year: 2012, Page(s):348 - 350
Cited by:  Papers (26)
| | PDF (637 KB) | HTML

A novel wideband microstrip band-pass filter is presented in this letter based on a quadruple-mode ring resonator, which is developed by introducing a stepped-impedance one-wavelength ring resonator (SORR) into a stepped-impedance half-wavelength resonator (SHR). In order to suppress the harmonic responses of the filter for a wide stop-band, two band-stop sections with asymmetrical -type structure... View full abstract»

• ### Compact UWB Bandpass Filter With a Notched Band Using Radial Stub Loaded Resonator

Publication Year: 2012, Page(s):351 - 353
Cited by:  Papers (27)
| | PDF (740 KB) | HTML

In this letter, a novel compact ultra-wideband (UWB) microstrip bandpass filter (BPF) with a notched band is presented by using the proposed radial stub loaded resonator (RSLR). The RSLR, on the one hand, is able to control two tunable transmission zeros separately and on the other hand, has the ability to provide a notched band. In addition, the vertical dimension of the UWB BPF can be significan... View full abstract»

• ### Miniaturized Diplexer Using Synthesized Microstrip Lines With Series LC Tanks

Publication Year: 2012, Page(s):354 - 356
Cited by:  Papers (9)
| | PDF (880 KB) | HTML

By utilizing two synthesized microstrip lines, a new miniaturized diplexer is proposed and validated in this letter. The synthesized line, formed by series LC tanks and meander line inductors, behaves like a conventional 50 microstrip line in one frequency band but is equivalent to an open circuit in the other band. This property dramatically improves the electrical performances of the diplexer wh... View full abstract»

• ### Design of a Compact Microstrip Quint-Band Filter Based on the Tri-Mode Stub-Loaded Stepped-Impedance Resonators

Publication Year: 2012, Page(s):357 - 359
Cited by:  Papers (18)
| | PDF (620 KB) | HTML

A simple and efficient method has been presented to design multi-band microstrip bandpass filters (BPFs) without a significant increase in circuit size. By utilizing multiple coupling paths, all passbands can then be fully controlled and, thus, the design is flexible so as to independently realize different bands. In addition, by adjusting the structural parameters of the proposed trimode stub-loa... View full abstract»

• ### Optically Transparent and Flexible Graphene Reciprocal and Nonreciprocal Microwave Planar Components

Publication Year: 2012, Page(s):360 - 362
Cited by:  Papers (14)
| | PDF (578 KB) | HTML

The sheet resistance of graphene has been recently reduced below the level of previous optically transparent conductive materials, making graphene, with its additional advantage of mechanical flexibility, the best candidate for future transparent electronics. We investigate here the viability of microwave planar components using graphene sheets as conductors towards optically transparent and flexi... View full abstract»

• ### Uni-Travelling-Carrier Photodiode Module Generating 300 GHz Power Greater Than 1 mW

Publication Year: 2012, Page(s):363 - 365
Cited by:  Papers (30)
| | PDF (433 KB) | HTML

In this letter, we demonstrate over 1 mW power generation at 300 GHz with a uni-travelling-carrier photodiode (UTC-PD) packaged in a WR-3 waveguide module. To increase the maximum power, two identical UTC-PDs were monolithically integrated along with a T-junction to combine the power from the two PDs. The UTC-PD module exhibited peak saturated output power of approximately 1.2 mW at 300 GHz with p... View full abstract»

• ### A Broadband, Low Noise, Integrated 340 GHz Schottky Diode Receiver

Publication Year: 2012, Page(s):366 - 368
Cited by:  Papers (8)
| | PDF (373 KB) | HTML

A 340 GHz subharmonic Schottky diode mixer and a multioctave (3-16 GHz) custom low noise amplifier (LNA) have been integrated to form a compact receiver front-end module, exhibiting ultra low noise with an exceptional flat response and broadband instantaneous frequency coverage. At room temperature, a receiver noise temperature of 870 K is measured at an LO drive of 1.2 mW at 170 GHz. The total dc... View full abstract»

• ### A Simple DC to 110 GHz MMIC True Time Delay Line

Publication Year: 2012, Page(s):369 - 371
Cited by:  Papers (6)
| | PDF (615 KB) | HTML

A simple miniaturized ultra-wideband true time delay line (TTD) is demonstrated using Indium Phosphide (InP) MMIC technology. An unprecedented bandwidth from close to dc to beyond 110 GHz is measured. The TTD has around 200 ps delay, a maximum insertion loss of only ~4.5 dB at 110 GHz, and better than 15 dB return loss across the majority of the band. This configuration significantly reduces the c... View full abstract»

• ### A 60 GHz Cascode Variable-Gain Low-Noise Amplifier With Phase Compensation in a 0.13 $mu{rm m}$ CMOS Technology

Publication Year: 2012, Page(s):372 - 374
Cited by:  Papers (7)
| | PDF (633 KB) | HTML

A 60 GHz variable-gain low-noise amplifier (LNA) with varactor-based phase compensation is developed using a 0.13 CMOS process. Based on the analysis of the phase variation during the gain control in the cascode-FET unit cell, a simple varactor-based phase compensation method is proposed. A linear bias control scheme for the gate of the common-source FET and the cathode of nMOS varactor at the gat... View full abstract»

• ### A Low-Power Third-Harmonic Self-Oscillating Mixer Using Multi-Harmonic Load

Publication Year: 2012, Page(s):375 - 377
| | PDF (397 KB) | HTML

A novel design of a third-harmonic self-oscillating mixer (SOM) based on a nonlinear optimization technique, namely multi-harmonic load, has been designed. Power consumption is reduced by terminating harmonic properly, and conversion gain is optimized in the form of harmonic termination networks at dc, RF, and LO frequency, and its harmonics. In this way, a novel SOM circuit at an RF frequency of ... View full abstract»

• ### Reconstruction of Metallic Inclusions Inside Dielectric Targets by Means of a Microwave Tomographic System

Publication Year: 2012, Page(s):378 - 380
Cited by:  Papers (4)
| | PDF (506 KB) | HTML

Experimental results concerning the inspection at microwave frequencies of wood material with metallic inclusions are reported. They have been obtained by inverting samples of the scattered electromagnetic field collected by a prototype of an imaging system. The system is able to acquire multi-illumination multiview data in a tomographic arrangement. The retrieved maps of the dielectric permittivi... View full abstract»

• ### Comment on “Compact, High-Q, and Low-Current Dissipation CMOS Differential Active Inductor”

Publication Year: 2012, Page(s):381 - 382
| | PDF (148 KB) | HTML

In a recent letter [ibid., vol. 18, no. 10, pp. 683¿¿685, Oct. 2008], C.L. Ler et al. present a CMOS differential active inductor (DAI) based on the single transistor source degenerated architecture proposed by those authors in ibid., vol. 44, no. 3, pp. 196¿¿197, Jan. 2008. The aim of this Comment is to reveal the general configurations and circuit equivalences which the results in the Oct 2008 p... View full abstract»

• ### Comments on "A modified gysel power divider of arbitrary power ratio and real terminated impedances"

Publication Year: 2012, Page(s):382 - 383
| | PDF (135 KB) | HTML

In the above-named letter [ibid., vol. 21, no. 11, pp. 601??603, Nov. 2011], the authors presented a Gysel divider with arbitrary power division ratio and termination impedances. In this letter, it is shown that for a dual-band Gysel power divider with arbitrary power division ratio and termination impedances can be derived as a special case of the dual-band Gysel power divider proposed by Z. Sun,... View full abstract»

• ### Terahertz spectroscopic techniques and applications

Publication Year: 2012, Page(s): 384
| PDF (460 KB)
• ### IEEE Microwave and Wireless Components Letters Reviewers List

Publication Year: 2012, Page(s): C3
| PDF (161 KB)

## Aims & Scope

The IEEE Microwave and Wireless Components Letters (MWCL) publishes three page papers that focus on microwave theory, techniques and applications as they relate to components, devices, circuits, biological effects, and systems involving the generation, modulation, demodulation, control, transmission, and detection of microwave signals.

Full Aims & Scope

## Meet Our Editors

Editor in Chief
N. Scott Barker
Dept. Elect. Comp. Eng.
University of Virginia
Charlottesville, VA 22904
barker@virginia.edu
dsk6n@virginia.edu