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# IEEE Transactions on Microwave Theory and Techniques

## Issue 11  Part 2 • Nov. 2008

This issue contains several parts.Go to:  Part 1

## Filter Results

Displaying Results 1 - 25 of 26

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
| PDF (38 KB)
• ### [Front cover]

Publication Year: 2008, Page(s): i1
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• ### Editorial/Guest Editorial

Publication Year: 2008, Page(s): i2
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• ### Multilayer 180$^{circ}$ Coupled Line Hybrid Coupler

Publication Year: 2008, Page(s):2525 - 2535
Cited by:  Papers (7)
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This paper presents a theoretical analysis of a 180deg hybrid coupler based on coupled lines. The analysis is applicable for the case where the non-TEM nature of coupled lines must be considered. The method used to analyze the coupler is based on an analytical T matrix approach, which provides suitable expressions for the design of the coupler. The design procedure is demonstrate... View full abstract»

• ### Amplifier Nonlinear Modeling with RF Pulses

Publication Year: 2008, Page(s):2536 - 2544
Cited by:  Papers (4)
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This paper proposes a Volterra kernel identification procedure for wireless amplifiers with nonlinear memory. The technique is based on a reduced-order Volterra model for wideband amplifiers that is favorably compared with widely used memory polynomial model in terms of normalized mean square error. The identification method takes advantage of the particular model structure and is thoroughly deriv... View full abstract»

• ### A Design Technique for Concurrent Dual-Band Harmonic Tuned Power Amplifier

Publication Year: 2008, Page(s):2545 - 2555
Cited by:  Papers (73)  |  Patents (2)
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In this paper, a novel technique to design concurrent dual-band high-efficiency harmonic tuned (HT) power amplifiers (PAs) is presented. The proposed approach is based on a methodology developed to design multifrequency passive matching networks, which allows concurrent operability. The network design criterion is heavily investigated and later generalized both from the theoretical and practical p... View full abstract»

• ### Sub-Millimeter-Wave Imaging Array at 500 GHz Based on 3-D Electromagnetic-Bandgap Material

Publication Year: 2008, Page(s):2556 - 2565
Cited by:  Papers (12)
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The design, fabrication, and characterization of a 500-GHz electromagnetic bandgap (EBG) based heterodyne receiver array is presented. The array contained seven planar dipole antennas that were photolithographically defined on a common 20-mum-thick quartz substrate. Each antenna incorporated a Schottky diode and was connected to coplanar transmission lines that conveyed the down-converted 500-GHz ... View full abstract»

• ### Negative-Zero-Positive Refractive Index in a Prism-Like Omega-Type Metamaterial

Publication Year: 2008, Page(s):2566 - 2573
Cited by:  Papers (21)
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Negative-zero-positive index refraction was demonstrated numerically on the basis of full-wave analysis of a microstructured omega-type array and experimentally via angle resolved transmission measurement of a prism-type prototype. The experimental results are interpreted in terms of characteristic impedance and refractive index retrieved by a Fresnel inversion technique. The possibility to balanc... View full abstract»

• ### Manufacturing Reliability of LTCC Millimeter-Wave Passive Components

Publication Year: 2008, Page(s):2574 - 2581
Cited by:  Papers (6)
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The manufacturing reliability of low-temperature co-fired ceramic circuits up to millimeter-wave frequencies and the associated tolerances are studied. The printing accuracy and software tools are initially verified. In the main part of this study, representative circuit elements are analyzed, i.e., a planar bandpass filter, buried filter, and vertical low-pass network, which take advantage of fin... View full abstract»

• ### High-Efficiency Hybrid EER Transmitter Using Optimized Power Amplifier

Publication Year: 2008, Page(s):2582 - 2593
Cited by:  Papers (60)  |  Patents (1)
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This paper describes a new design approach for a power amplifier (PA) of the highly efficient hybrid envelope elimination and restoration (H-EER) transmitter. Since the PA operates mostly at the average power region of the modulation signal, power-added efficiency (PAE) of the PA at the average drain voltage is very important for the overall transmitter PAE. Accordingly, the PA is designed to have... View full abstract»

• ### Coupling Mechanism in Hybrid SIW–CPW Forward Couplers for Millimeter-Wave Substrate Integrated Circuits

Publication Year: 2008, Page(s):2594 - 2601
Cited by:  Papers (13)
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Various publications address the suppression of the undesired mode coupling in laterally bounded conductor-backed coplanar waveguides (CPWs). In this paper, we present an integrated waveguide structure in which this coupling effect of different guided modes is deliberately exploited. Efficient forward coupling at arbitrary levels is achieved between a substrate integrated rectangular waveguide (SI... View full abstract»

• ### Synergetic Crest Factor Reduction and Baseband Digital Predistortion for Adaptive 3G Doherty Power Amplifier Linearizer Design

Publication Year: 2008, Page(s):2602 - 2608
Cited by:  Papers (37)  |  Patents (2)
| | PDF (884 KB) | HTML

A novel approach for power amplifier (PA) characterization suitable for single iteration digital predistorter synthesis is proposed. This approach consists of synergetic crest factor reduction and baseband digital predistortion to avoid the average power variation at the input of the PA between the characterization and linearization steps. This is achieved by bypassing the crest factor reduction b... View full abstract»

• ### An Active Guarding Circuit Design for Wideband Substrate Noise Suppression

Publication Year: 2008, Page(s):2609 - 2619
Cited by:  Papers (4)
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In this paper, an active guarding circuit is presented for wideband substrate noise suppression. A feed-forward compensation mechanism is proposed to extend the noise suppression bandwidth and to adjust the amplitude of phase-inversed noise cancellation current by introducing a zero and an amplitude controller. A noise decoupling mechanism is developed to provide a decoupling path and to sense the... View full abstract»

• ### Complete Design and Measurement Methodology for a Tunable RF Impedance-Matching Network

Publication Year: 2008, Page(s):2620 - 2627
Cited by:  Papers (24)  |  Patents (1)
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This paper presents the design, fabrication, and characterization of a compact narrowband tunable impedance-matching network. A prototype was fabricated in hybrid technology using coplanar waveguide transmission lines and surface-mounted components. The network consists of a II-structure with tunable components made of varactors in series with inductors. Simulations and measurements are in good ag... View full abstract»

• ### Contactless Vector Network Analysis With Printed Loop Couplers

Publication Year: 2008, Page(s):2628 - 2634
Cited by:  Papers (7)
| | PDF (1024 KB) | HTML

In this paper, an introduction to contactless vector network analysis is given. Furthermore, the implementation of a contactless measurement setup is presented using different printed coupling structures. The coupling structures are connected to a vector network analyzer (VNA) by means of conventional on-wafer probes, as well as planar-coaxial transitions. For the contactless method, conventional ... View full abstract»

• ### Optimization of an Open-Ended Microwave Oven for Microelectronics Packaging

Publication Year: 2008, Page(s):2635 - 2641
Cited by:  Papers (6)
| | PDF (1140 KB) | HTML

A physically open, but electrically shielded, microwave open oven can be produced by virtue of the evanescent fields in a waveguide below cutoff. The below cutoff heating chamber is fed by a transverse magnetic resonance established in a dielectric-filled section of the waveguide exploiting continuity of normal electric flux. In order to optimize the fields and the performance of the oven, a thin ... View full abstract»

• ### Phase Measurement of RF Devices Using Phase-Shifting Interferometry

Publication Year: 2008, Page(s):2642 - 2647
Cited by:  Papers (2)
| | PDF (896 KB) | HTML

A novel measurement technique is introduced for high-resolution phase measurements of RF devices. It is based on phase-shifting interferometry and is, therefore, fairly independent of the absolute magnitude of the measured RF signal, as demonstrated by measurements. A low-cost vector network analyzer (VNA) working up to a frequency of 150 MHz is presented using a multiple output direct digital syn... View full abstract»

• ### Stability Analysis of Oscillation Modes in Quadruple-Push and Rucker's Oscillators

Publication Year: 2008, Page(s):2648 - 2661
Cited by:  Papers (7)
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Oscillator systems composed by N sub-oscillators coupled through a symmetric linear network enable the combination of output power at the first or Nth harmonic component of the oscillation frequency of each sub-oscillator. However, they have the drawback of a possible coexistence of different oscillation modes, which limits their practical application. This paper presents an in-depth... View full abstract»

• ### Differential Colpitts VCO for Enhancing Transceiver Performance in Specified UHF Mobile RFID Environment Conditions

Publication Year: 2008, Page(s):2662 - 2670
Cited by:  Papers (1)
| | PDF (2686 KB) | HTML

In this paper, we introduce a differential Colpitts voltage-controlled oscillator (VCO), performing a signal oscillation with low phase noise. The proposed VCO is a part of our RF integrated circuit (IC) transceiver design project; some transceiver components are also introduced. VCO performance is verified both in simulation and practical measurement using the proposed RF IC transceiver, communic... View full abstract»

• ### An Empirical Large-Signal Model for SiC MESFETs With Self-Heating Thermal Model

Publication Year: 2008, Page(s):2671 - 2680
Cited by:  Papers (12)
| | PDF (2238 KB) | HTML

An empirical large-signal model for high-power microwave silicon-carbide MESFETs capable of predicting self-heating thermal behavior is presented. A generalized drain-current equation based on pulsed-gate IV characteristics measuring up to 2 A and 58 V is presented along with its dependence on temperature. A thermal subcircuit with a nonlinear thermal resistance characterized by a dc method is use... View full abstract»

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

Publication Year: 2008, Page(s): 2681
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• ### Special issue on RF and Microwave Techniques in Wireless Implants and Biomedical Applications

Publication Year: 2008, Page(s): 2682
| PDF (144 KB)
• ### Over 1 million scientific documents easily within reach, from IEEE [advertisement]

Publication Year: 2008, Page(s): 2683
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Publication Year: 2008, Page(s): 2684
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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