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Industry News

The Commercial Market

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The Commercial Market Terrorism Attacks Accelerate Interest in GPS Applications According to Allied Business Intelligence, Global Positioning System (GPS) applications have attracted increased interest in the wake of the terrorism attacks of 2001. American society has changed from one that is casual toward these kinds of threats to one...
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The Book End

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The Book End Radio Receiver Design Kevin McClaning and Tom Vito Noble Publishing Corp. 796 pages; $89 ISBN: 1-884932-07-X This reference book has been written by engineers, for engineers involved in the design of radio receivers and systems and can also be used by students interested in the subject....
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A High Power Multi-carrier Power Amplifier

Description of a multi-carrier power amplifier designed to meet the air interface requirements associated with 2G, 2.5G and 3G basestation wireless systems
Celiant Corp.
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Product Feature A High Power Multi-carrier Power Amplifier Celiant™ Corp. Warren, NJ Power amplifiers are critical radio frequency components of wireless network systems, typically representing 10 to 40 percent of the cost of a basestation. There are a variety of wireless standards associated with 2G, 2.5G and 3G wireless...
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A High Gain Power Amplifier with Variable Bias for Multi-mode WCMDA Applications

A new high performance power amplifier for WCDMA applications is featured this month
RF Micro Devices
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Cover Feature A High Gain Power Amplifier with Variable Bias for Multi-mode WCMDA Applications RF Micro Devices Greensboro, NC This article describes a new high performance power amplifier (PA) for wideband code division multiple access (WCDMA) applications. With the transition from second generation (2G) systems, such as Global System...
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An X-band, High Power, MMIC-based Microwave Amplifier

Introduction to a new high power, MMIC-based microwave amplifier produced to supply 30 W of saturated output power between 8 and 11 GHz
MILMEGA Ltd.
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Product Feature An X-band, High Power, MMIC-based Microwave Amplifier Milmega Ltd. Isle of Wight, UK When established performance ranges are extended, it is often a simple case of developing and building on the original technology. Not so for the AS 80110/30 microwave amplifier, which has been produced to extend...
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Low Phase Noise SiGe Voltage-controlled Oscillators for Wireless Applications

Description of transmit and receive voltage-controlled oscillator design solutions developed in high performance SiGe technology
Xudong Wang, Dawn Wang, Chris Masse and Peter Bacon
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Technical Feature Low Phase Noise SiGe Voltage-controlled Oscillators for Wireless Applications A low phase noise voltage-controlled oscillator (VCO) is one of the critical circuits in modern telecommunications systems. In recent years, silicon germanium (SiGe) BiCMOS technology has become one of the most promising technologies for VCO designs. This article...
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A Varactor-tuned Oscillator with Linear Tuning Characteristics

Proposed design procedure for emphasizing the tuning linearity of a varacter-tuned oscillator
Munkyo Seo, Joo-Yeol Lee, Kyung-Kuk Lee and Sangwook Nam
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Technical Feature A Varactor-tuned Oscillator with Linear Tuning Characteristic Munkyo Seo, Joo-Yeol Lee and Kyung-Kuk Lee LG Electronics Inc. Seoul, Korea Sangwook Nam Seoul National University Seoul, Korea In certain areas of microwave applications such as FMCW radars, FM modulators and phase-locked loop (PLL) circuits, the system performance is...
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Designing a Bluetooth Transceiver in RF CMOS

Presentation of a design methodology used to facilitate the rapid prototyping and design of an RFIC
Bob Koupal, Marshall Wang and Cory Edelman
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Technical Feature Designing a Bluetooth Transceiver in RF CMOS Bob Koupal and Marshall Wang Signia Technologies Milpitas, CA Cory Edelman Agilent Technologies Westlake Village, CA The design of a 2.4 GHz Bluetooth transceiver RFIC in CMOS requires careful verification of key performance criteria at all stages of the design...
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A New Type of Amplitude Equalizer for In-band Flatness Improvement

Presentation of a cascade amplitude equalizer used for improving the performance of a bandpass filter frequency response in cellular band
Hee-Yong Hwang, Sang-Won Yun and Joong-Sung Chung
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Technical Feature A New Type of Amplitude Equalizer for In-band Flatness Improvement There is a growing need in modern communication systems for low cost bandpass filters of small size, high selectivity and flat passband response in order to meet the demands for inter-channel power balance, and to avoid interference....
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Intermodulation Products for a Mixer Subjected to a Multi-carrier Signal

Use of a nonlinear mixer model to demonstrate how a transient simulation is used to predict the behavior of intermodulation products in a multi-carrier environment
Assaad Borjak and Taoufik Bourdi
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Technical Feature Intermodulation Products for a Mixer Subjected to a Multi-carrier Signal Applying a multi-carrier signal to a mixer leads to a large range of intermodulation products. To perform a link budget of a multi-carrier transmit-receive system, it is important to predict the location and magnitude of those intermodulation...
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