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# IEEE Transactions on Microwave Theory and Techniques

## Issue 8  Part 1 • Aug. 2013

This issue contains several parts.Go to:  Part 2

## Filter Results

Displaying Results 1 - 25 of 34

Publication Year: 2013, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2013, Page(s): C2
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• ### Microwave Imaging Through a Mode-Matching Bessel Functions Procedure

Publication Year: 2013, Page(s):2753 - 2760
Cited by:  Papers (3)
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A novel imaging procedure based on ultra-wideband microwave signals is presented. The procedure exploits the use of Bessel functions mode-matching approach for the identification of the presence and location of significant scatterers inside cylindrically shaped objects. Simulations and measurements on cylinders with inclusions are provided to show the capability of the procedure for capturing the ... View full abstract»

• ### Effective Electromagnetic Parameters of Metamaterial Transmission Line Loaded With Asymmetric Unit Cells

Publication Year: 2013, Page(s):2761 - 2772
Cited by:  Papers (5)
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In this paper, we propose the generalized extraction procedure for retrieval of the effective constitutive parameters for a metamaterial transmission line loaded with asymmetric unit cells. The asymmetric unit cell is replaced with a transmission line immersed in equivalent bianisotropic medium described by effective parameters ε, μ, and Zc, and bianisotropic parameters u ... View full abstract»

• ### Study of Convergence, Divergence, and Oscillations in Method-of-Auxiliary-Sources (MAS) and Extended-Integral-Equation (EIE) Solutions to a Simple Cavity Problem

Publication Year: 2013, Page(s):2773 - 2782
Cited by:  Papers (2)
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The Method of Auxiliary Sources (MAS) is a well-known method of computational electromagnetics and physics. Previous studies of MAS solutions to exterior scattering problems have shown that it is possible to have convergence of the field, which is the final desired quantity, together with divergence of the MAS currents, which are intermediate quantities. Another study has demonstrated that no simi... View full abstract»

• ### TEM Wave Scattering by a Step Discontinuity on the Outer Wall of a Coaxial Waveguide

Publication Year: 2013, Page(s):2783 - 2791
Cited by:  Papers (3)
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In this paper, the propagation of TEM waves along a coaxial waveguide with a step discontinuity on its outer wall is investigated rigorously by applying the direct Fourier transform and reducing the problem into the solution of a modified Wiener-Hopf equation. The solution for the field terms are determined in terms of an infinite number of unknown coefficients, which satisfy an infinite set of li... View full abstract»

• ### Linear-Complexity Direct and Iterative Integral Equation Solvers Accelerated by a New Rank-Minimized ${cal H}^{2}$-Representation for Large-Scale 3-D Interconnect Extraction

Publication Year: 2013, Page(s):2792 - 2805
Cited by:  Papers (6)
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We develop a new rank-minimized H2-matrix-based representation of the dense system matrix arising from an integral-equation (IE)-based analysis of large-scale 3-D interconnects. Different from the H2-representation generated by the existing interpolation-based method, the new H2-representation minimizes the rank in nested cluster bases and all off-diagonal blocks a... View full abstract»

• ### Intrinsically Switchable Ferroelectric Contour Mode Resonators

Publication Year: 2013, Page(s):2806 - 2813
Cited by:  Papers (1)
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This paper presents the design and measurement results of intrinsically switchable interdigitated contour mode resonators based on barium titanate (BTO) thin films. The resonators have lithographically defined interdigitated electrodes that determine their resonance frequencies. The BTO thin film exhibits electrostriction, which allows the resonances to be switched on and off. The highest frequenc... View full abstract»

• ### Design of Balanced Dual-Band Bandpass Filters Using Asymmetrical Coupled Lines

Publication Year: 2013, Page(s):2814 - 2820
Cited by:  Papers (20)
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In this paper, we present balanced dual-band bandpass filters (BPFs) using asymmetrical coupled lines. The proposed dual-band BPF has an enhanced common-mode suppression level because the proposed asymmetrical coupled line inherently has the bandstop characteristic on common-mode signals without either additional stubs or lumped elements. The proposed asymmetrical coupled line has dual-band perfor... View full abstract»

• ### General Compensation Method for a Marchand Balun With an Arbitrary Connecting Segment Between the Balance Ports

Publication Year: 2013, Page(s):2821 - 2830
Cited by:  Papers (10)
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For a Marchand balun, the output imbalance due to the inevitable physical separation between the balance ports is a problem. In this paper, a general compensation method to cope with this imbalance issue is proposed with rigorous analysis and design formulas. The compensation relies on two intentionally shortened coupling sections and a pair of short-circuited transmission lines as the termination... View full abstract»

• ### A Balanced-to-Balanced Power Divider With Arbitrary Power Division

Publication Year: 2013, Page(s):2831 - 2840
Cited by:  Papers (17)
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In this paper, a balanced-to-balanced power divider is proposed, for the first time, with arbitrary power division, which can be regarded as the balanced form of a Gysel power divider. The constraint rules are provided for its mixed-mode and single-ended S-parameters. The six-port network is analyzed by simplifying it to two-port networks with other ports matched at the central frequency. Its crit... View full abstract»

• ### A Frequency-Compensated Rat-Race Coupler With Wide Bandwidth and Tunable Power Dividing Ratio

Publication Year: 2013, Page(s):2841 - 2847
Cited by:  Papers (12)
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This paper presents, for the first time, the theoretical and experimental study of broadband rat-race coupler design with a tunable power dividing ratio. Wide fractional bandwidth (around 40%) is accomplished by the adoption of frequency compensating networks with specific derivatives of even- and odd-mode admittances. General formulation is analytically carried out to lay down the design principl... View full abstract»

• ### Experimental Realization of Tunable Transmission Lines Based on Single-Layer SIWs Loaded by Embedded SRRs

Publication Year: 2013, Page(s):2848 - 2857
Cited by:  Papers (1)
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Wave propagation in single layer substrate integrated waveguides (SIWs) loaded by embedded split-ring resonators (ESRRs) is discussed theoretically and experimentally. It is shown that the loaded SIW can support a backward-wave passband below the cutoff frequency (fc) of the host SIW or a stopband will appear above fc if the effective transversal permeability is negative. In ... View full abstract»

• ### Design and Analysis of the Millimeter-Wave SPDT Switch for TDD Applications

Publication Year: 2013, Page(s):2858 - 2864
Cited by:  Papers (8)
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This paper presents a low-loss and high Tx-to-Rx isolation single-pole double-throw (SPDT) millimeter-wave switch for true time delay applications. The switch is designed based on matching-network and double-shunt transistors with quarter-wavelength transmission lines. The insertion loss and isolation characteristics of the switches are analyzed revealing that optimization of the transistor size w... View full abstract»

• ### A 15–40-GHz Frequency Reconfigurable RF MEMS Phase Shifter

Publication Year: 2013, Page(s):2865 - 2877
Cited by:  Papers (11)
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This paper presents a novel frequency reconfigurable phase shifter using the RF microelectromechanical systems (MEMS) technology. The phase shifter is based on the triple-stub circuit topology composed of three stubs that are connected by two transmission lines that are all implemented as distributed MEMS transmission lines. The insertion phase of the circuit is controlled by changing the electric... View full abstract»

• ### Stability Analysis of Injection-Locked Multimode Oscillators

Publication Year: 2013, Page(s):2878 - 2891
Cited by:  Papers (2)
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This paper presents an in-depth stability analysis of injection-locked multimode oscillators. The various types of bifurcations, or qualitative stability changes, occurring in these systems when varying the input power are studied in detail. It is shown that, for low injection power, each stable injection-locked oscillation coexists with as many two-fundamental quasi-periodic solutions as the numb... View full abstract»

• ### Analysis and Design of Gain Enhanced Cascode Stage Utilizing a New Passive Compensation Network

Publication Year: 2013, Page(s):2892 - 2900
Cited by:  Papers (2)
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This paper analyzes the influence of the Miller effect on the gain performance of the cascode stage. A passive compensation network is proposed to cancel Cbc at the millimeter-wave range without distinct penalty on noise figure and stability. Using this passive compensation network, the cascode stage can achieve a higher gain in a wider bandwidth than other cascode topologies. Furthermore, a W-ban... View full abstract»

• ### CMOS Distributed Amplifiers Using Gate–Drain Transformer Feedback Technique

Publication Year: 2013, Page(s):2901 - 2910
Cited by:  Papers (7)
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This paper presents CMOS distributed amplifiers (DAs) using the proposed gate-drain transformer feedback technique. The feedback allows reuse of the traveling signal to achieve a high gain-bandwidth product while maintaining low power consumption of DAs. With the folded transmission lines and patterned ground shield, the miniaturized transformer has high quality factors and a well-controlled feedb... View full abstract»

• ### High-Efficiency GaN Doherty Power Amplifier for 100-MHz LTE-Advanced Application Based on Modified Load Modulation Network

Publication Year: 2013, Page(s):2911 - 2921
Cited by:  Papers (25)  |  Patents (1)
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This paper presents a high-efficiency GaN Doherty power amplifier (PA) with 100-MHz instantaneous bandwidth for 3.5-GHz long-term-evolution (LTE)-advanced application. A modified load modulation network, employing an enlarged peaking amplifier to carrier amplifier power ratio and moderately increased load impedance of the carrier amplifier, is proposed for enhancing efficiency and achieving improv... View full abstract»

• ### A Design Procedure for High-Efficiency and Compact-Size 5–10-W MMIC Power Amplifiers in GaAs pHEMT Technology

Publication Year: 2013, Page(s):2922 - 2933
Cited by:  Papers (4)
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This paper presents the design procedure of monolithic microwave integrated circuit (MMIC) high-power amplifiers (HPAs) as well as implementation of high-efficiency and compact-size HPAs in a 0.25- μm AlGaAs-InGaAs pHEMT technology. Presented design techniques used to extend bandwidth, improve efficiency, and reduce chip area of the HPAs are described in detail. The first HPA delivers 5 W o... View full abstract»

• ### Analysis of a Broadband High-Efficiency Switch-Mode /spl Delta//spl Sigma/ Supply Modulator Based on a Class-E Amplifier and a Class-E Rectifier

Publication Year: 2013, Page(s):2934 - 2948
Cited by:  Papers (2)
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In this paper, a broadband high-efficiency supply modulator is proposed. This modulator, with a node controlled by ΔΣ modulator's output, consists of a conventional Class-E amplifier and a Class-E rectifier. The configurations and operation principles of this modulator are introduced to explain the envelope reconstruction process. The performance of this modulator in steady state is ... View full abstract»

• ### Demonstration of a Micro-Integrated Sub-Millimeter-Wave Pixel

Publication Year: 2013, Page(s):2949 - 2955
Cited by:  Papers (2)
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This paper reports on the first demonstration of a micro-integrated pixel operating in the sub-millimeter-wave regime. The pixel consists of a low-noise amplifier realized in InP HEMT, an nIN diode detector, and micromachined horn antenna. The monolithic microwave integrated circuits are attached inside a micromachined silicon waveguide through a novel solder ball process, and a micromachined horn... View full abstract»

• ### Precise Measurement Using Coaxial-to-Microstrip Transition Through Radiation Suppression

Publication Year: 2013, Page(s):2956 - 2965
Cited by:  Papers (3)
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This paper presents a study about the radiation problem of coaxial-to-microstrip launchers and suggests their improvement with a novel design. The proposed solution is based on a coaxial-to-microstrip transition enclosed in a parallel-plate transmission line that has its cutoff frequency above the working frequency band of interest. Any radiated field is quickly attenuated because it is propagatin... View full abstract»

• ### Theoretical Limits and Accuracy Improvement of Reflection-Coefficient Measurements in Six-Port Reflectometers

Publication Year: 2013, Page(s):2966 - 2974
Cited by:  Papers (18)
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A complete analysis of the influence of six-port reflectometer parameters on the measurement accuracy is presented. A theoretical limit of the reflection-coefficient measurement has been investigated and is derived analytically. Moreover, for a set of six-ports reported in the literature, the numerical analysis of magnitude and phase measurement errors in a wide range of reflection-coefficient mag... View full abstract»

• ### Adaptive Noise Cancellation for Two Frequency Radar Using Frequency Doubling Passive RF Tags

Publication Year: 2013, Page(s):2975 - 2981
Cited by:  Papers (7)
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The use of an adaptive noise-cancellation technique has been explored in order to separate multiple sources of motion for a two-frequency Doppler radar system. A 2.45-GHz fundamental Doppler radar system was used together with a harmonic Doppler radar receiver to measure and identify two moving reflectors; one with a harmonic tag and one without. While the tagged motion alone was detected by the h... 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..

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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