# IEEE Transactions on Microwave Theory and Techniques

## Issue 4  Part 1 • April 2009

This issue contains several parts.Go to:  Part 2

## Filter Results

Displaying Results 1 - 25 of 27

Publication Year: 2009, Page(s):C1 - C4
| PDF (49 KB)
• ### IEEE Transactions on Microwave Theory and Techniques publication information

Publication Year: 2009, Page(s): C2
| PDF (44 KB)
• ### Scalable Small-Signal and Noise Modeling for Deep-Submicrometer MOSFETs

Publication Year: 2009, Page(s):737 - 744
Cited by:  Papers (15)
| | PDF (648 KB) | HTML

A new scalable noise and small-signal model for deep-submicrometer metal-oxide semiconductor field-effect transistors, which consist of multiple elementary cells is presented in this paper. It allows exact modeling of all noise and small-signal model parameters from elementary cell to large-size device. The scalable rules for noise and small-signal model parameters are given in detail. The experim... View full abstract»

• ### Extended Hammerstein Behavioral Model Using Artificial Neural Networks

Publication Year: 2009, Page(s):745 - 751
Cited by:  Papers (21)
| | PDF (1359 KB) | HTML

In this paper, a novel extended Hammerstein model is presented to accurately mimic the dynamic nonlinearity of wideband RF power amplifiers (RFPAs). Starting with a conventional Hammerstein model scheme, which fails to predict the behavior of the RFPA with short-term memory effects, two areas of improvements were sought and found to allow for substantial improvement. First, a polar feed-forward ne... View full abstract»

• ### A Quasi-Four-Pair Class-E CMOS RF Power Amplifier With an Integrated Passive Device Transformer

Publication Year: 2009, Page(s):752 - 759
Cited by:  Papers (25)  |  Patents (4)
| | PDF (1633 KB) | HTML

A quasi-four-pair structure of an RF CMOS power amplifier (PA) is proposed. The structure is applied to a 1.8-GHz class-E CMOS PA for a global system for mobile communications with a 0.18-mum RF CMOS process. This allows a simple design, as well as a high output power. The transistor size issues of the cascode PA are also studied. An integrated passive device transformer is used as both a power co... View full abstract»

• ### An Analytical Approach in Analysis of Local Oscillator Near-the-Carrier AM Noise Suppression in Microwave Balanced Mixers

Publication Year: 2009, Page(s):760 - 766
Cited by:  Papers (2)
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In this paper, a new formulation based on conversion matrix method is proposed to analyze ldquonear-the-carrier local ocillator (LO) noiserdquo down conversion to IF in microwave mixers. This method could be easily applied to analyze LO noise down conversion in any type of mixer. Practical results of this method have been compared with the envelope method and measurement results. It is shown that ... View full abstract»

• ### Design Techniques for a Low-Voltage VCO With Wide Tuning Range and Low Sensitivity to Environmental Variations

Publication Year: 2009, Page(s):767 - 774
Cited by:  Papers (20)
| | PDF (1012 KB) | HTML

This paper presents design techniques for a low-voltage voltage-controlled oscillator (VCO) with a wide tuning range and low sensitivity to process, voltage, and temperature (PVT) variations. For wide tuning range, a switched tuning scheme is employed coupled with voltage-boosting techniques in a manner that improves the quality factor and tuning range of a switched capacitor array. To minimize th... View full abstract»

• ### A New Concept of Open ${rm TE}_{011}$ Cavity

Publication Year: 2009, Page(s):775 - 783
Cited by:  Papers (6)
| | PDF (623 KB) | HTML

The confinement properties of the open structure formed crossing a circular waveguide perpendicular to a parallel-plate waveguide are discussed, highlighting the fundamental differences with respect to the common high-frequency resonators. The structure supports a TE011 mode that appears suited for millimeter- and submillimeter-wave applications. The experimental characterization of thi... View full abstract»

• ### Uniform Ferrite-Loaded Open Waveguide Structure With CRLH Response and Its Application to a Novel Backfire-to-Endfire Leaky-Wave Antenna

Publication Year: 2009, Page(s):784 - 795
Cited by:  Papers (54)
| | PDF (1181 KB) | HTML

A uniform ferrite-loaded open waveguide structure with composite right/left-handed (CRLH) response and its application to a novel backfire-to-endfire leaky-wave antenna are presented. The structure consists of a ferrite-filled rectangular waveguide open to free space at one of its small sides and biased perpendicularly to its large sides. Based on the fact that the leakage from the open side repre... View full abstract»

• ### A Hierarchical Electromagnetic-Circuit Technique for Statistical Analysis of RF Circuits in the Spectral Domain

Publication Year: 2009, Page(s):796 - 806
Cited by:  Papers (3)
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Spectral domain statistical analysis of RF circuits, combining a circuit simulator, which models the circuit part and a full-wave field solver, which models the passive elements, is presented in this paper. This paper first illustrates the importance of the knowledge of correlation information in accurately modeling the probability density functions (PDFs) of eventual objective functions using a s... View full abstract»

• ### A Novel Transition-Included Multilayer Filter

Publication Year: 2009, Page(s):807 - 814
Cited by:  Papers (3)
| | PDF (1643 KB) | HTML

A novel transition-included multilayer filter is proposed with the associated electromagnetically coupled transition from conductor-backed coplanar waveguide to stripline designed as a part of the bandpass filter. Specifically, a filter equivalent-circuit model is introduced with the transformer turn ratio to specify the impedance-transformation characteristic of the transition. The proposed trans... View full abstract»

• ### Design Enhancement of Miniature Lumped-Element LTCC Bandpass Filters

Publication Year: 2009, Page(s):815 - 823
Cited by:  Papers (24)
| | PDF (1650 KB) | HTML

We present a novel methodology for the design of miniature lumped element components embedded in a low-temperature co-fired ceramic (LTCC) package. The entire process, from initial schematic design, through individual element design, to complete device optimization is discussed. The design and fabrication of novel miniature lumped element LTCC filters is used to validate the proposed methodology. ... View full abstract»

• ### Dual-Band Bandpass Filter With Improved Performance in Extended Upper Rejection Band

Publication Year: 2009, Page(s):824 - 829
Cited by:  Papers (49)
| | PDF (816 KB) | HTML

Stepped-impedance resonators with different dimensions are used to design bandpass filters with a dual-passband response, as well as good rejection levels in the extended upper stopband. To achieve the goal, the resonators are designed to have two identical leading resonant frequencies, but dispersed higher order ones to make spurious peaks have low levels and small bandwidths. The stopband is the... View full abstract»

• ### A Two-Pole Two-Zero Tunable Filter With Improved Linearity

Publication Year: 2009, Page(s):830 - 839
Cited by:  Papers (54)
| | PDF (794 KB) | HTML

Two miniaturized tunable filters with two zeros to result in sharp skirts were developed at 1.4-2.0 GHz on epsivr=6.15 substrate. The filters were built using single and back-to-back varactor diodes and compared for linearity characteristics. The single-diode filter has a 1-dB bandwidth of 5plusmn0.5% and an insertion loss of 2.5-1.8 dB. The back-to-back diode filter has a 1-dB bandwidt... View full abstract»

• ### Compact Modeling and Comparative Analysis of Silicon-Chip Slow-Wave Transmission Lines With Slotted Bottom Metal Ground Planes

Publication Year: 2009, Page(s):840 - 847
Cited by:  Papers (27)
| | PDF (1471 KB) | HTML

A compact modeling approach for silicon-chip slow-wave transmission lines with slotted bottom metal ground planes is studied and its limitations are presented. The modeling approach facilitates the calculation of the slow-wave transmission line parameters based upon the corresponding coplanar and grounded coplanar transmission-line parameters. The described analysis method is used for a comparativ... View full abstract»

• ### A Novel Wideband Common-Mode Suppression Filter for Gigahertz Differential Signals Using Coupled Patterned Ground Structure

Publication Year: 2009, Page(s):848 - 855
Cited by:  Papers (102)  |  Patents (3)
| | PDF (1168 KB) | HTML

A wideband and compact filter design for common-mode noise suppression in high-speed differential signals is proposed based on two U-shaped and one H-shaped coupled patterned ground structure. An equivalent model of three coupled LC resonators to predict the common-mode suppression characteristics is also developed with good agreement to the full-wave simulation and measurement result. A test samp... View full abstract»

• ### A Novel Approach to Ring Resonator Theory Involving Even and Odd Mode Analysis

Publication Year: 2009, Page(s):856 - 862
Cited by:  Papers (8)
| | PDF (365 KB) | HTML

This paper presents a novel theoretical approach to the analysis of a ring resonator consisting of an edge-fed circular microstrip of arbitrary width on a substrate over a ground plane; the analysis takes into account the existing coupling between the two halves of the ring. The proposed theory, based on the ordinary quasi-transverse electromagnetic approach, makes use of multiconductor modal anal... View full abstract»

• ### An Error Analysis of the Scattering Matrix Renormalization Transform

Publication Year: 2009, Page(s):863 - 868
Cited by:  Papers (4)  |  Patents (1)
| | PDF (1614 KB) | HTML

By characterizing the condition number as an indicator of accuracy, an error analysis is performed to determine how different auxiliary terminations affect the accuracy of the scattering matrix renormalization transform. Such an error analysis plays an essential role in enhancing the accuracy and widening the applicability of the port renormalization method for measuring multiport devices with a t... View full abstract»

• ### A Stable Bayesian Vector Network Analyzer Calibration Algorithm

Publication Year: 2009, Page(s):869 - 880
Cited by:  Papers (6)
| | PDF (1441 KB) | HTML

A new overdetermined vector network analyzer (VNA) calibration algorithm is presented. The new algorithm shows significant advantages in the measurement of very high-impedance devices such as carbon nanotube transistors and can be applied to all types of VNA calibration. It was found that, for high-impedance devices, the new algorithm yields up to four times more accurate results. The focus of thi... View full abstract»

• ### Pulsed Active Load–Pull Measurements for the Design of High-Efficiency Class-B RF Power Amplifiers With GaN HEMTs

Publication Year: 2009, Page(s):881 - 889
Cited by:  Papers (4)
| | PDF (2194 KB) | HTML

A novel pulsed class-B load-pull measurement system is developed to characterize GaN HEMTs targeting the design of high-efficiency class-B or class-C power amplifiers operating under a pulsed-bias and pulsed-RF (pulsed-IV/RF) condition. Based on a large-signal network analyzer, the test system uses an active load-pull method to provide stable open-loop pulsed-RF loads into the drain at omega0... View full abstract»

• ### Post-Compensation of Ultra-Wideband Antenna Dispersion Using Microwave Photonic Phase Filters and Its Applications to UWB Systems

Publication Year: 2009, Page(s):890 - 898
Cited by:  Papers (18)  |  Patents (1)
| | PDF (453 KB) | HTML

We demonstrate experimental post-compensation of ultra-wideband (UWB) antenna dispersion at a receiver front-end by using programmable microwave photonic phase filtering. After the received RF signal is modulated onto an optical carrier, we utilize a hyperfine resolution optical pulse shaper to apply the conjugate of its spectral phase in the optical domain. After optical-to-electronic conversion,... View full abstract»

• ### Influence of Use Conditions and Mobile Phone Categories on the Distribution of Specific Absorption Rate in Different Anatomical Parts in the Brain

Publication Year: 2009, Page(s):899 - 904
Cited by:  Papers (7)
| | PDF (529 KB) | HTML

SAR distributions in different anatomical parts of the brain were estimated for different use conditions and phone categories for the purpose of exposure assessment in epidemiological studies on RF exposure and brain cancer risk. The results suggested a variability of the exposure of the different parts depending on use conditions and mobile phone categories and highlighted the importance of evalu... View full abstract»

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

Publication Year: 2009, Page(s): 905
| PDF (23 KB)
• ### Special issue on THz technology: bridging the microwave-to-photonics gap

Publication Year: 2009, Page(s): 906
| PDF (163 KB)

Publication Year: 2009, Page(s): 907
| PDF (320 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..

Full Aims & Scope

## Meet Our Editors

Editor-in-Chief
Luca Perregrini
luca.perregrini@unipv.it

Editor-in-Chief
Jose Carlos Pedro
edit.tmtt@ua.pt