# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 22 of 22

Publication Year: 2014, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2014, Page(s): C2
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• ### A Divergence-Free Meshless Method Based on the Vector Basis Function for Transient Electromagnetic Analysis

Publication Year: 2014, Page(s):1409 - 1416
Cited by:  Papers (7)
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Although meshless methods, in particularly those with scalar radial basis functions (RBFs), have been applied effectively to solve electromagnetic problems, their solutions may not be always divergence free in source-free regions, resulting in possibly large errors. In this paper, a new vector RBF based meshless method, which is divergence free, is proposed for solving transient electromagnetic pr... View full abstract»

• ### A Geometrical Approach to Duality Transformations for Tellegen Media

Publication Year: 2014, Page(s):1417 - 1428
Cited by:  Papers (3)
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Duality transformations are of key importance in the study of Tellegen (i.e., achiral and nonreciprocal biisotropic) media: they often can reduce electromagnetic problems with both Tellegen media and simple isotropic media (SIMs), to simpler problems just with SIMs. Here, we generalize known results and derive the most general classes of Tellegen media that can be reduced, under the same duality t... View full abstract»

• ### Fast Solutions of Volume Integral Equations for Electromagnetic Scattering by Large Highly Anisotropic Objects

Publication Year: 2014, Page(s):1429 - 1436
Cited by:  Papers (8)
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Accurate analysis of electromagnetic problems including inhomogeneous or anisotropic structures requires solving volume integral equations (VIEs) in the integral-equation approach. When the structures are electrically large in dimensions or constitutively complicated in materials, fast numerical algorithms are desirable to accelerate the solution process. Traditionally, such fast solvers are devel... View full abstract»

• ### Low-Temperature Superconducting DC-Contact RF MEMS Switch for Cryogenic Reconfigurable RF Front-Ends

Publication Year: 2014, Page(s):1437 - 1447
Cited by:  Papers (6)
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A niobium-based superconducting dc-contact RF microelectromechanical systems switch is introduced and is thoroughly analyzed. The switch is amenable to integration with superconducting microelectronics technology. A comparison of the switch's RF performance at room and cryogenic temperatures indicates a significant improvement in the insertion loss of the switch when niobium is superconducting. Th... View full abstract»

• ### Optically Controllable Composite Dielectric Based on Photo-Conductive Particulates

Publication Year: 2014, Page(s):1448 - 1453
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We report a method to optically control the effective permittivity of a composite dielectric in which the active inclusions are fabricated from pulverized semi-insulating GaAs. The electric dipoles from the inclusions are controlled by photo-generation of charge carriers using infrared light. An infrared transparent binder provides the matrix material. Our primary purpose is to develop a low-cost ... View full abstract»

• ### Stochastic Macromodeling of Nonlinear Systems Via Polynomial Chaos Expansion and Transfer Function Trajectories

Publication Year: 2014, Page(s):1454 - 1460
Cited by:  Papers (12)
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A novel approach is presented to perform stochastic variability analysis of nonlinear systems. The versatility of the method makes it suitable for the analysis of complex nonlinear electronic systems. The proposed technique is a variation-aware extension of the Transfer Function Trajectory method by means of the Polynomial Chaos expansion. The accuracy with respect to the classical Monte Carlo ana... View full abstract»

• ### Multisection Couplers With Coupled-Line Sections Having Unequal Lengths

Publication Year: 2014, Page(s):1461 - 1469
Cited by:  Papers (1)
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A new type of broadband multisection coupled-line directional couplers is proposed. The investigated directional couplers are composed of coupled-line sections having unequal electrical lengths and a transmission-line section. The presented couplers feature similar bandwidth to the standard multisection directional couplers with significantly reduced maximum coupling coefficient, and the overall s... View full abstract»

• ### Broadband Differential Phase-Shifter Design Using Bridged T-Type Bandpass Network

Publication Year: 2014, Page(s):1470 - 1479
Cited by:  Papers (3)
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In this paper, a family of broadband differential phase shifters using bridged T-type bandpass networks and their design procedures are presented. Conventional high/low-pass networks are widely applied in 22.5 °-90 ° phase shifters. However, the tradeoff must be made between the bandwidths of return loss and phase error, which are limited to less than 90%. The proposed bridged T-type... View full abstract»

• ### A Compact Gysel Power Divider With Unequal Power-Dividing Ratio Using One Resistor

Publication Year: 2014, Page(s):1480 - 1486
Cited by:  Papers (9)
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A novel compact Gysel power divider is proposed and investigated in this paper. The proposed power divider consists of two transmission lines, a pair of coupled lines, and only one grounded resistor for unequal power-dividing ratio. Comparing to the conventional Gysel power divider, the new power divider saves its space by eliminating the 180 ° electrical length transmission line and reduce... View full abstract»

• ### Platelet Orthomode Transducer for $Q$-Band Correlation Polarimeter Clusters

Publication Year: 2014, Page(s):1487 - 1494
Cited by:  Papers (4)
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This paper presents a Q-band orthomode transducer (OMT) that has been designed according to the mechanical constraints of the platelet (multi-layer) manufacturing strategy. It is composed of a twofold symmetric coupling section with two electrically identical recombination networks. The two OMT outputs lay on the same plane to provide a suitable interface to the correlation unit. The two channels ... View full abstract»

• ### Wide-Band Inductorless Low-Noise Transconductance Amplifiers With High Large-Signal Linearity

Publication Year: 2014, Page(s):1495 - 1505
Cited by:  Papers (13)
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Two high-linearity inductorless broadband low-noise transconductance amplifiers (LNTAs) employing noise and distortion cancellation techniques are presented. The core design employs a common-gate input stage and a common-source error-amplifier (EA) stage. Stacked PMOS-NMOS topology enables large-signal operation while the drain current is reused. The high linearity performance is achieved by the d... View full abstract»

• ### A $W$ -band High LO-to-RF Isolation Triple Cascode Mixer With Wide IF Bandwidth

Publication Year: 2014, Page(s):1506 - 1514
Cited by:  Papers (6)
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A W-band triple cascode down conversion mixer using a 0.15- μm pseudomorphic high-electron mobility transistor process is proposed in this paper. Due to the utilization of modified bias topology, resistive mixing core, and IF low-pass filter, this circuit has a very wide IF bandwidth. Moreover, the triple cascode structure is used in this mixer for high local oscillator (LO)-to-RF isolation... View full abstract»

• ### A High-Speed Power Detector for $D$-Band Communication

Publication Year: 2014, Page(s):1515 - 1524
Cited by:  Papers (1)
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A D-band power detector (PD) consisting of a four-way power divider and four identical active PD units is proposed, where four individual PD units are derived by the input signals having the same amplitude, but a 90 ° phase difference. The outputs of the PD units are combined, to suppress the first, second, and third harmonics due to phase cancellation. Consequently, the ripple at the outpu... View full abstract»

• ### A 0.14-${hbox {mm}}^{2}$ 1.4-mW 59.4-dB-SFDR 2.4-GHz ZigBee/WPAN Receiver Exploiting a “Split-LNTA + 50% LO” Topology in 65-nm CMOS

Publication Year: 2014, Page(s):1525 - 1534
Cited by:  Papers (6)
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A compact low-power 2.4-GHz ZigBee/wireless personal area network receiver is reported. It optimizes passive pregain with an inverter-based split low-noise transconductance amplifier (split-LNTA) to avoid the RF balun and its associated insertion loss, while enabling isolated in-phase (I)/quadrature (Q) passive mixing. The latter essentially saves power as a 50%-dutycycle local oscillator (50% LO)... View full abstract»

• ### Electromagnetic Inspection of Carbon-Fiber- Reinforced Polymer Composites With Coupled Spiral Inductors

Publication Year: 2014, Page(s):1535 - 1544
Cited by:  Papers (9)
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This paper presents a new type of an electromagnetic sensor for nondestructive testing of carbon-fiber-reinforced polymer composites. The sensor utilizes coupled planar spiral inductors operating typically in the range of 10-500 MHz. The method proposed here shows some similarity to the eddy current technique, but as will be shown, the principles of operation are different as the sensitivity to de... View full abstract»

• ### A Rotating Synthetic Aperture Radar Imaging Concept for Robot Navigation

Publication Year: 2014, Page(s):1545 - 1553
Cited by:  Papers (1)
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This paper introduces a concept for robot navigation based on a rotating synthetic aperture short-range radar scanner. It uses an innovative broadband holographic reconstruction algorithm, which overcomes the typical problem of residual phase errors caused by an imprecisely measured aperture position and moving targets. Thus, it is no longer necessary to know the exact trajectory of the synthetic ... View full abstract»

• ### Dosimetry Using a Localized Exposure System in the Millimeter-Wave Band for in vivo Studies on Ocular Effects

Publication Year: 2014, Page(s):1554 - 1564
Cited by:  Papers (4)
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We developed a millimeter-wave (MMW) exposure system for in vivo experiments for operating frequencies ranging from 24.5 to 95 GHz. The MMWs are localized to the rabbit ocular tissue with a spot-focus lens antenna. The MMW energy absorption and consequent temperature elevation are evaluated by numerical simulation using measured antenna distribution and precisely modeled rabbit ocular data. Result... View full abstract»

• ### Comments on “Design and Analysis of Swapped Port Coupler and Its Application in a Miniaturized Butler Matrix”

Publication Year: 2014, Page(s):1565 - 1566
Cited by:  Papers (1)
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Supplementary solutions are provided for the swapped port coupler proposed by Jeong and Kim in the above paper. It is shown that the solution given in the above paper using uncoupled line section is not the only one for the coupler operation and a more generalized solution is presented through the extended analysis. The newly proposed solutions make it possible to design the swapped port coupler b... View full abstract»

Publication Year: 2014, Page(s):1567 - 1568
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This letter focuses on addressing the comments made by Park. Additional derivation, as well as simulation were performed and presented accordingly to answer the claims from Park. Furthermore, proposed swapped port coupler design using a different coupling factor than by Park was carefully examined and assessed. View full abstract»

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

Publication Year: 2014, Page(s): C3
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## 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