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# IEEE Transactions on Microwave Theory and Techniques

## Issue 4  Part 1 • April 2011

This issue contains several parts.Go to:  Part 2

## Filter Results

Displaying Results 1 - 25 of 30

Publication Year: 2011, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2011, Page(s): C2
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• ### Discrete Complex Image Method With Spatial Error Criterion

Publication Year: 2011, Page(s):793 - 802
Cited by:  Papers (6)
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Since its first inception, the discrete complex image method (DCIM) has been criticized for the lack of a proper prediction algorithm of the error incurred during the process. Although the method has been improved and modified several times, not being able to input any prior specification or to get any meaningful assessment on the error deters computer-aided design developers and engineers from us... View full abstract»

• ### Examination, Clarification, and Optimization of the Green's Function/$Z$ -Matrix Models and Calculations for Rectangular Planar Microwave Circuits

Publication Year: 2011, Page(s):803 - 815
Cited by:  Papers (2)
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In this paper, we examine the Green's function and Z-matrix models commonly used in calculations for microwave planar circuits. We prove, for the first time, the pointwise convergence of the Green's function and the interchangeability of the integration and infinite summation used in deriving the Z-matrix model. We also show the validity of interchanging the order of the double summa... View full abstract»

• ### Analysis of Laterally Open Periodic Waveguides by Means of a Generalized Transverse Resonance Approach

Publication Year: 2011, Page(s):816 - 826
Cited by:  Papers (4)
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The combination of the generalized transverse resonance technique, a field-matching method, and the generalized scattering matrix (GSM) concept is proposed in this paper as an efficient, versatile, and accurate method for the analysis of laterally open periodic waveguides. The proposed method accounts for both open and periodic boundary conditions without any approximation. Its only drawback is it... View full abstract»

• ### Efficient RF Circuit Simulation Using an Innovative Mixed Time-Frequency Method

Publication Year: 2011, Page(s):827 - 836
Cited by:  Papers (5)
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This paper suggests an answer to the problem of simulating heterogeneous wireless systems composed of baseband and RF blocks, as the former demand for SPICE-like engines, while the latter are more efficiently solved with frequency-domain tools as harmonic balance. The proposed time-frequency hybrid technique splits the circuit's node voltages or mesh currents into fast and slowly varying state var... View full abstract»

• ### Inverse Singular Value Method for Enforcing Passivity in Reduced-Order Models of Distributed Structures for Transient and Steady-State Simulation

Publication Year: 2011, Page(s):837 - 847
Cited by:  Papers (13)
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Reduced-order modeling of distributed structures for transient and steady-state circuit simulation transforms discrete frequency-domain network parameters to a set of rational functions. The models are ideally causal and passive with passivity being the most difficult property to assure, especially when the distributed structures incorporate propagation delay effects or the available network param... View full abstract»

• ### Design of Multimode Net-Type Resonators and Their Applications to Filters and Multiplexers

Publication Year: 2011, Page(s):848 - 856
Cited by:  Papers (36)
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Net-type resonators with dual- and tri-mode electrical behaviors have been presented and analyzed theoretically in this paper. The proposed net-type resonator is constructed by a short-ended and several open-ended transmission-line sections, which has the advantages of small size and more flexible resonant frequency allocation and is therefore particularly suitable for applications to the design o... View full abstract»

• ### Compact Low-Loss Integration of High- $Q$ 3-D Filters With Highly Efficient Antennas

Publication Year: 2011, Page(s):857 - 865
Cited by:  Papers (34)
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A novel synthesis technique to integrate high-Q 3-D filters with highly efficient slot antennas is presented in this paper. This technique allows for compact integration of 3-D filters and antennas with very high antenna efficiency and significantly reduced form factor of integrated RF front ends. Prototype four-pole Chebyshev cavity filters integrated with slot antennas are demonstrated at... View full abstract»

• ### A 1.2–1.6-GHz Substrate-Integrated-Waveguide RF MEMS Tunable Filter

Publication Year: 2011, Page(s):866 - 876
Cited by:  Papers (61)  |  Patents (1)
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This paper presents a high-performance substrate-integrated-waveguide RF microelectromechanical systems (MEMS) tunable filter for 1.2-1.6-GHz frequency range. The proposed filter is developed using packaged RF MEMS switches and utilizes a two-layer structure that effectively isolates the cavity filter from the RF MEMS switch circuitry. The two-pole filter implemented on RT/Duroid 6010LM exhibits a... View full abstract»

• ### On the Number of Noise Parameters for Analyses of Circuits With MOSFETs

Publication Year: 2011, Page(s):877 - 881
Cited by:  Papers (2)
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The inequality relating Fmin and Lange invariant N for any noisy linear two-port network has been known since the 1980s. However, the applicability of this inequality to MOSFETs is not discussed in the literature, and thus, this inequality is not normally treated in analyses and designs of circuits based on MOSFETs. This work shows that by using N, the number of noise parameters require... View full abstract»

• ### A Chebyshev-Response Step-Impedance Phase-Inverter Rat-Race Coupler Directly on Lossy Silicon Substrate and Its Gilbert Mixer Application

Publication Year: 2011, Page(s):882 - 893
Cited by:  Papers (5)
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This paper focuses on the analysis and the design methodology of the step-impedance phase-inverter rat-race coupler on a silicon-based process. The issues of impedance limitation and bandwidth are discussed in detail. Our proposed concept utilizes a high silicon dielectric constant, phase-inverter structure, step-impedance technique, and Chebyshev response to make the rat-race coupler more compact... View full abstract»

• ### A 60-GHz 2-bit Switched-Line Phase Shifter Using SP4T RF-MEMS Switches

Publication Year: 2011, Page(s):894 - 900
Cited by:  Papers (23)
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This paper presents a V -band 2-bit switched-line phase shifter using dc-contact single-pole four-throw (SP4T) RF microelectromechanical systems (RF-MEMS) switches for 60-GHz applications. The design and measurements of the SP4T RF-MEMS switches and the phase shifter are presented. The phase shifter demonstrates an average insertion loss of 2.5 dB in the 55-65-GHz band with a return loss be... View full abstract»

• ### The Charge-Controlled Nonlinear Noise Modeling Approach for the Design of MMIC GaAs-pHEMT VCOs for Space Applications

Publication Year: 2011, Page(s):901 - 912
Cited by:  Papers (8)
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In this paper, a new cyclostationary nonlinear low-frequency (LF) noise model for field-effect microwave transistors is presented based on the general theory of the technology-independent Charge-Controlled Nonlinear Noise modeling approach. The model definition, experimental extraction, and validation are described. For model parameter identification, the characterization of the device in terms of... View full abstract»

• ### Physically Inspired Neural Network Model for RF Power Amplifier Behavioral Modeling and Digital Predistortion

Publication Year: 2011, Page(s):913 - 923
Cited by:  Papers (42)  |  Patents (4)
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In this paper, a novel two hidden layers artificial neural network (2HLANN) model is proposed to predict the dynamic nonlinear behavior of wideband RF power amplifiers (PAs). Starting with a generic low-pass equivalent circuit of the PA, several circuit transformations are applied in order to build an appropriate artificial neural network structure and improve the modeling accuracy. This approach ... View full abstract»

• ### Enhanced Hammerstein Behavioral Model for Broadband Wireless Transmitters

Publication Year: 2011, Page(s):924 - 933
Cited by:  Papers (32)  |  Patents (1)
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A novel enhanced Hammerstein behavior model consisting of a weighted memoryless polynomial followed by a Volterra filter is proposed. The weighted polynomial is used for predicting the strong static nonlinear behaviors of the power amplifiers (PAs). Since the Volterra filter is employed only for the mild dynamic nonlinearities, the filter can be implemented with low nonlinear order. Thus, this pro... View full abstract»

• ### Frequency Response Analysis and Bandwidth Extension of the Doherty Amplifier

Publication Year: 2011, Page(s):934 - 944
Cited by:  Papers (87)  |  Patents (1)
| | PDF (1159 KB) | HTML

A complete frequency response analysis of the Doherty amplifier is presented with the conventional output combining network consisting of two quarter-wavelength (λ/4) transmission lines at a center frequency f0 . Expressions for output power and efficiency were derived over the whole dynamic range and at any frequency f. The analysis shows that the amount of efficie... View full abstract»

• ### Band-Split Forward-Path Cartesian Feedback for Multicarrier TETRA RF Power Amplifiers

Publication Year: 2011, Page(s):945 - 953
Cited by:  Papers (1)
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This paper demonstrates a TETRA base-station RF power amplifier (RFPA) with state-of-the-art linearity and noise performance for the UHF band. Very high linearity is achieved at considerable power levels using a combination of a linear class-A/B RFPA, a novel dual-path Cartesian-feedback structure with RF reference injection, and high-order loop filters. It is demonstrated how the limitation on li... View full abstract»

• ### Millimeter-Wave Wafer-Scale Silicon BiCMOS Power Amplifiers Using Free-Space Power Combining

Publication Year: 2011, Page(s):954 - 965
Cited by:  Papers (50)  |  Patents (1)
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This paper presents the first millimeter-wave wafer-scale power-amplifier array implemented in a 0.13-μ m BiCMOS technology. The power combining is done in the free-space using high efficiency on-chip antennas. A 3 × 3 power-amplifier array is demonstrated with an equivalent isotropic radiated power of 33-35 dBm at 90-98 GHz. This results in a total on-chip power of 21-23 dBm and a t... View full abstract»

• ### A 54–862-MHz CMOS Transceiver for TV-Band White-Space Device Applications

Publication Year: 2011, Page(s):966 - 977
Cited by:  Papers (22)  |  Patents (2)
| | PDF (1955 KB) | HTML

A 54-862-MHz single-chip CMOS transceiver with a single LC voltage-controlled oscillator (VCO) fractional-N synthesizer is developed for TV-band white-space communications and cognitive radio applications. The transceiver is based on a single-conversion zero-IF architecture with integrated harmonic filtering capability. A combined harmonic rejection mixer and coarse RF tracking filter signi... View full abstract»

• ### High-Speed $W$ -Band Integrated Photonic Transmitter for Radio-Over-Fiber Applications

Publication Year: 2011, Page(s):978 - 986
Cited by:  Papers (10)
| | PDF (1747 KB) | HTML

A high-speed W -band integrated photonic transmitter is demonstrated. The presented integrated photonic transmitter is essentially developed with a near-ballistic uni-traveling-carrier photodiode integrated with a broadband front end through the flip-chip assembling technique. Technically, compared to our previous design, a W-band bandpass filter is exploited to significantly increas... View full abstract»

• ### Diode Power Probe Measurements of Wireless Signals

Publication Year: 2011, Page(s):987 - 997
Cited by:  Papers (9)
| | PDF (1955 KB) | HTML

In this paper, we conduct a thorough analysis of the nonlinear behavior of diode power probes and demonstrate how memory effects can alter power measurements of signals with wide modulation bandwidths and high values of peak-to-average power ratio. We show analytically, by simulations, and with measurements, that commonly used single-tone calibration procedures for diode power probes can provide e... View full abstract»

Publication Year: 2011, Page(s):998 - 1005
Cited by:  Papers (14)
| | PDF (1924 KB) | HTML

This paper summarizes the development of safety-of-life receivers for global navigation satellite systems. Two receiver systems have been successfully fabricated, integrated, and tested by means of field experiments. Implementation issues of these two systems are described in this paper. The third generation of this receiving system is based on a dual-band approach with antennas that are able to s... View full abstract»

• ### Wideband Behavioral Model for Nonlinear Operation of Bandpass Sampling Receivers

Publication Year: 2011, Page(s):1006 - 1015
Cited by:  Papers (9)
| | PDF (1349 KB) | HTML

In this paper, a new behavioral model for bandpass sampling receivers (BPSRs) is presented. The new model describes the wideband behavior of the BPSR and addresses specifically its nonlinear behavior, either in-band distortion, but also intermodulation and harmonic generation. The proposed model allows the selection of different memory taps for each nonlinear mixing cluster. This model capability ... View full abstract»

• ### Accuracy Improvement for Direction of Arrival Estimation by the Use of a Mirror Element

Publication Year: 2011, Page(s):1016 - 1024
Cited by:  Papers (1)
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In this paper, a method to increase the achievable angle accuracy of a linear digital beamforming array by introducing a reflector element acting as mirror for the electromagnetic wave is presented. The mirror element leads to an increase of the effective array aperture, as well as a quasi-doubling of the number of elements. The major difference compared to a real increase of the number of array e... 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