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White Papers

Design of Waveguide Bandpass Filter in the X-frequency Band

Gaƫtan Prigent, Nathalie Raveu, Olivier Pigaglio and Henri Baudrand
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The Design of a Dual Ultra-wide Bandpass Filter Using L-Shaped Step Impedance Resonators

Chu-Yu Chen and Li-Mei Tu
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A high performance dual ultra-wideband (UWB) bandpass filter with 5 to 6 GHz rejection band is proposed. The multiple L-shaped SIR resonators are incorporated with multiple-mode resonator (MMR) to provide wide transmission band and inhibit the signals ranged from 5- to 6-GHz.
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A Low Cost Method for GSM Mobile Synchronization to Base

Jaleh Komaili, Darioush Agahi and Masoud Kahrizi, Senior Members, IEEE
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This paper presents a mobile synchronization approach that could afford an inaccurate and inexpensive crystal [2]. The carrier frequency synchronization is achieved by adjusting the fractional-N PLL while the time base synchronization is obtained by introducing simple physical layer algorithms and existing hardware.
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Total Radiated Power (TRP) Implications for a GSM Power Amplifier

RFMD
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RF CMOS Assumes Wireless Data ICs Center Stage

Dror Regev, Tower Semiconductor
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Acceleware Gains Speed for FDTD Solvers Used in Biomedical Simulations

Heather Bota, Acceleware Corp.
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Optimization of a Photonic Crystal Waveguide Termination

Walter R. Frei, COMSOL Inc.
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WiMAX Power Amplifiers and Front-end Modules: A Primer in Design Considerations

Darcy Poulin, SiGe Semiconductor
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Balanced Amplifiers in RF Design

Bruce Marks, Mini-Circuits
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Pad Geometry Scaling and Removal in Advanced Capacitor Models

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This paper discusses a new pad scalability feature added to selected Global Models contained in Modelithics CLR Library[1,2]. The correlation between high frequency measured data and simulated performance, as well as interesting features such as arbitrary pad shape simulation, are also explored.
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