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# IEEE Transactions on Microwave Theory and Techniques

## Filter Results

Displaying Results 1 - 25 of 27

Publication Year: 2008, Page(s):C1 - C4
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• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2008, Page(s): C2
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• ### The beginnings of this Transactions

Publication Year: 2008, Page(s):565 - 567
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• ### A New Analytical Method for Robust Extraction of the Small-Signal Equivalent Circuit for SiGe HBTs Operating at Cryogenic Temperatures

Publication Year: 2008, Page(s):568 - 574
Cited by:  Papers (6)
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We present a new analytical direct parameter-extraction methodology for obtaining the small-signal equivalent circuit of HBTs. It is applied to cryogenically operated SiGe HBTs as a means to allow circuit design of SiGe HBT low-noise amplifiers for cooled radio astronomy applications. We split the transistor into an intrinsic transistor (IT) piece modeled as a Pi-topology, and the quasi-intrinsic ... View full abstract»

• ### Closed-Form Formulas for Predicting the Nonlinear Behavior of All-Pole Bandpass Filters

Publication Year: 2008, Page(s):575 - 586
Cited by:  Papers (3)  |  Patents (1)
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The nonlinear behavior of the all-pole passive bandpass filters close to their center frequency is studied using first-order approximations. The focus of this study is on approximate calculation of third-order intermodulations through an iterative process, and it is shown that it can be generalized to higher order effects. Nonlinearities in both resonators and inverters are considered. Simple form... View full abstract»

• ### A 7-dB 43-GHz CMOS Distributed Amplifier on High-Resistivity SOI Substrates

Publication Year: 2008, Page(s):587 - 598
Cited by:  Papers (13)
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This paper presents designs and measurements of distributed amplifiers (DAs) processed on a 130-nm silicon-on-insulator CMOS technology on either standard-resistivity (10 Omegamiddotcm) or high-resistivity (>1 kOmegamiddotcm) substrates, and with either body-contacted (BC) or floating-body (FB) MOSFETs. Investigations have been carried out to assess the impact of active device performance and t... View full abstract»

• ### A 1-V 45-GHz Balanced Amplifier With 21.5-dB Gain Using 0.18-$mu{hbox {m}}$ CMOS Technology

Publication Year: 2008, Page(s):599 - 603
Cited by:  Papers (6)
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A fully integrated balanced amplifier was realized in a standard 0.18-mum CMOS technology. From the measured-parameters, a gain up to 21.5 dB was achieved at 45.4 GHz under a supply voltage of only 1 V and a total power consumption of 89 mW. An effective technique, i.e., pi-type parallel resonance, was proposed to enhance the device and circuit frequency response. In addition, the semicoaxial line... View full abstract»

• ### High-Efficiency Broadband Parallel-Circuit Class E RF Power Amplifier With Reactance-Compensation Technique

Publication Year: 2008, Page(s):604 - 612
Cited by:  Papers (46)
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Class E amplifier offers high efficiency approaching 100% for an ideal case. This paper introduces a first practical implementation of a novel broadband class E power amplifier design combining a parallel-circuit load network with a reactance compensation technique. The novel broadband parallel-circuit class E load network using reactance compensation technique has been discussed based on theory a... View full abstract»

• ### A High Conversion-Gain $Q$-Band InP DHBT Subharmonic Mixer Using LO Frequency Doubler

Publication Year: 2008, Page(s):613 - 619
Cited by:  Papers (9)
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The paper presents analysis and design of a Q-band subharmonic mixer (SHM) with high conversion gain. The SHM consists of a local oscillator (LO) frequency doubler, RF pre-amplifier, and single-ended mixer. The SHM has been fabricated in a high-speed InP double heterojunction bipolar transistor (DHBT) technology using coplanar waveguide structures. To the best of our knowledge, this is the first d... View full abstract»

• ### A 0.8-mW 55-GHz Dual-Injection-Locked CMOS Frequency Divider

Publication Year: 2008, Page(s):620 - 625
Cited by:  Papers (70)  |  Patents (1)
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This paper presents the dual-injection-locking technique to enhance the locking range of resonator-based frequency dividers. By fully utilizing the voltage and current injection of the input signal, the divider locking range is extended significantly. The 0.8-mW dual-injection-locked frequency divider was developed in 90-nm digital CMOS technology. The total chip size is 0.77 mm times 0.5 mm. With... View full abstract»

• ### A New RF CMOS Gilbert Mixer With Improved Noise Figure and Linearity

Publication Year: 2008, Page(s):626 - 631
Cited by:  Papers (45)
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The noise figure of an RF CMOS mixer is strongly affected by flicker noise. The noise figure can be improved using pMOS switch circuits, which insert current at the on/off crossing instants of the local oscillator switch stage because the circuits reduce the flicker noise injection. When it is applied to a conventional Gilbert mixer, the injection efficiency and linearity are degraded by the nonli... View full abstract»

• ### Monostatic Reflectivity and Transmittance of Radar Absorbing Materials at 650 GHz

Publication Year: 2008, Page(s):632 - 637
Cited by:  Papers (4)
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Transmittance and monostatic reflectivity of different radar absorbing materials at 650 GHz are presented. The reflectivity was measured in plane-wave conditions in a radar cross-section (RCS) range with vertical polarization. The lowest reflectivity level (-70 dB) was achieved with commercial absorbers TK THz RAM and Firam-500 with oblique incidence angles. Floor carpets were also studied, and th... View full abstract»

• ### Multiconductor Transmission Lines in Inhomogeneous Bi-Anisotropic Media

Publication Year: 2008, Page(s):638 - 653
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An analysis method for multiconductor transmission lines embedded in inhomogeneous bi-anisotropic media is presented. The Maxwell-Boffi equations, accompanied by the Maxwell-Minkowski ones, are expressed as Taylor series of the operating frequency where the zeroth- and first-order terms are retained. The reduced problem is solved using the potential formulation through the static 2-D free-space Gr... View full abstract»

• ### A New 3-D Transmission Line Matrix Scheme for the Combined SchrÖdinger–Maxwell Problem in the Electronic/Electromagnetic Characterization of Nanodevices

Publication Year: 2008, Page(s):654 - 662
Cited by:  Papers (28)
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This paper introduces a novel technique in which Maxwell equations, discretized by the transmission line matrix method in a 3-D domain, are coupled to the Schrodinger equation and simultaneously solved. The aim is to develop a method that accounts for deterministic electromagnetic field dynamics together with the quantum phenomena, which are typical of nanodevices. View full abstract»

• ### CAD-Oriented Model of a Coplanar Line on a Silicon Substrate Including Eddy-Current Effects and Skin Effect

Publication Year: 2008, Page(s):663 - 670
Cited by:  Papers (11)  |  Patents (1)
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Silicon technologies are now widely used for RF applications. Due to the substrate and conductor conductivity, losses and magnetic coupling affect the signal propagation in transmission lines. We propose an equivalent scheme for a transmission line taking these phenomena into account. All the parameters are analytically extracted from measurements. The magnetic coupling, including eddy currents, a... View full abstract»

• ### Ultra-Wide Suppression Band of Surface Waves Using Periodic Microstrip-Based Structures

Publication Year: 2008, Page(s):671 - 683
Cited by:  Papers (4)
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We propose the use of microstrip-based elements: spiral inductors and interdigital capacitors connected through transmission lines to provide a higher order wide surface wave suppression band. Design, modeling, and realization of optimum values for spiral inductors and interdigital capacitors are studied in detail. A grid of 77 2-D unit cells consisting of these designed interdigital capacitors an... View full abstract»

• ### An Optimum Design Methodology for Planar-Type Coaxial Probes Applicable to Broad Temperature Permittivity Measurements

Publication Year: 2008, Page(s):684 - 692
Cited by:  Papers (9)
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A planar-type coaxial probe applicable to wide temperature and frequency range has been developed. The probe employs a dielectric with a low coefficient of thermal expansion to minimize the effect of thermal deformation for broad temperature measurements. Additionally, a detailed design methodology has been developed to optimize the probe apertures in an effort to minimize the measurement uncertai... View full abstract»

• ### A Novel Calibration Algorithm for a Special Class of Multiport Vector Network Analyzers

Publication Year: 2008, Page(s):693 - 699
Cited by:  Papers (15)
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A new error model for a special class of multiport vector network analyzers (VNAs) is presented in this paper. This model can be applied to multiport network analyzers with noncomplete reflectometers, i.e., when the measurement of the incident waves at each port is not always available. The method used to compute the error coefficients proposed here is based on a compact and easy formulation. This... View full abstract»

• ### Application of Millimeter-Wave Radiometry for Remote Chemical Detection

Publication Year: 2008, Page(s):700 - 709
Cited by:  Papers (13)  |  Patents (1)
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Passive millimeter-wave systems have been used in the past to remotely map solid targets and to measure low-pressure spectral lines of stratospheric and interstellar gases; however, its application to pressure-broadened spectral line detection of industrial emissions is new. We developed a radiative transfer model to determine feasibility and system requirements for passive millimeter-wave spectra... View full abstract»

• ### Dispersion Limitations of Ultra-Wideband Wireless Links and Their Compensation Via Photonically Enabled Arbitrary Waveform Generation

Publication Year: 2008, Page(s):710 - 719
Cited by:  Papers (26)  |  Patents (2)
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In this study, we present compression of ultra-wideband RF waveforms via photonic synthesis of phase pre-compensated waveforms. By exciting a dispersive wireless link (employing Archimedean spiral antennas) with variable-bandwidth excitation waveforms, we first demonstrate that such links exhibit a dispersion-limited output pulse duration. Subsequently, we utilize the RF spectral phase extracted f... View full abstract»

• ### $G$-Band Distributed Microelectromechanical Components Based on CMOS Compatible Fabrication

Publication Year: 2008, Page(s):720 - 728
Cited by:  Papers (6)
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Microelectromechanical systems (MEMS) technology has been used for realizing G-band (140-220 GHz) distributed MEMS transmission line components. Novel dielectric-less MEMS components, as well as switched MEMS capacitors, have been fabricated with CMOS compatible surface micromachining, and experimental results are presented up to 220 GHz. View full abstract»

• ### A Two-Pole Lumped-Element Programmable Filter With MEMS Pseudodigital Capacitor Banks

Publication Year: 2008, Page(s):729 - 735
Cited by:  Papers (20)
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This paper presents a novel two-pole reconfigurable bandpass filter on alumina substrate for applications in X- and S-bands. An analytical approach was followed for synthesis of multiple filtering characteristics. A microstrip network on alumina was then optimized to implement a set of switched filtering functions. Finally a reconfigurable filter was fabricated and tested in order to validate the ... View full abstract»

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

Publication Year: 2008, Page(s): 736
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• ### Special issue on RFID Hardwave and Integration Technologies

Publication Year: 2008, Page(s): 737
| PDF (109 KB)

Publication Year: 2008, Page(s): 738
| PDF (220 KB)

## 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