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Industry News

Polarization Diversity Antennas for Compact Base Stations

The use of diversity reception for mobile radio base stations and a comparison of space and polarization diversity techniques
Polarization Diversity Antennas for Compact Base Stations This article describes the use of diversity reception for mobile radio base stations and compares the performance of space and polarization diversity techniques. In urban areas polarization diversity offers performance that is generally comparable with that of space diversity. The compact three-antenna...
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A Review of the 1999 Wireless Workshop

A look back at the 1999 Wireless Workshop held October 24-27 in Gold Canyon, AZ
A Review of the 1999 Wireless Workshop Frank Bashore Microwave Journal Staff The 1999 Wireless Workshop was held October 24-27 in Gold Canyon, AZ. The workshop is designed to serve as a technical forum and discussion group for various engineering and technical representatives from leading companies involved in the...
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K-band Quadrature Mixers with Plastic-packaged Diodes

Two practical K-band, quadrature mixer designs using inexpensive. packaged semiconductor devices installed on conventional printed circuit boards
K-band Quadrature Mixers with Plastic-packaged Diodes Matjaz Vidmar University of Ljubljana, Slovenia Quadrature mixers (also known as IQ mixers) are important signal-processing components in radio transmitters (as vector modulators) and radio receivers (as image-reject mixers and/or demodulators) as well as other microwave equipment (phase-locked loops (PLL)). A quadrature mixer...
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A 76 to 77 GHz GMIC Mixer for Automotive Radar

The diode modeling and mixer design approach along with the measured results of a 76 to77 GHz mixer developed on a 127 µm-thick glass MIC for autonomous cruise control radar applications
A 76 to 77 GHz GMIC Mixer for Automotive Radar A 76 to 77 GHz mixer that uses flipped Hewlett-Packard HSCH-9401 Schottky diodes has been developed on a 127-µm-thick glass microwave integrated circuit (GMIC) for autonomous cruise control (ACC) radar applications. The design process for diode modeling and mixer...
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New Microwave Applications for Thick-film Thermistors

Two applications of thick-film thermistors in devices that can be used up to 20 GHz
Technical Feature New Microwave Applications for Thick-film Thermistors A.H. Feingold, R.L. Wahlers, P. Amstutz, C. Huang , S.J. Stein and J. Mazzochette Please click here to view the pdf file of the Technical Feature...
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Around the Circuit

Around the Circuit Industry News FP-WJ Acquisition Corp. , a new company formed by certain investment funds managed by Fox Paine & Co. LLC, has entered into a definitive agreement to acquire Watkins-Johnson Co. (WJ) through a recapitalization merger transaction. Under the terms of the merger agreement, outstanding shares...
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New Literature

New Literature Microwave and RF Power Transistor Catalog This short-form catalog features microwave and RF power transistors, including bipolar and MOSFET devices. Cross-reference listings are provided for Motorola, Philips and STMicroelectronics components. Advanced Semiconductor Inc. (ASI), North Hollywood, CA (800) 423-2354. Isolator and Circulator Catalog This 16-page catalog describes...
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Components

Components Low Loss Single-supply SP2T Switch The model SWN-218-2A Options 011, GH is an SP2T solid-state switch with a single power supply that operates from 0.5 to 18 GHz (or from 10 MHz to 18 GHz). Insertion loss is < 2.5 dB (typ), SWR is 1.9 and isolation is...
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Amplifiers

Amplifiers Packaged Broadband Millimeter-wave Amplifiers The models AB028H1-14 and AB038H1-14 high gain amplifiers are designed for 23 to 30 GHz and 36 to 41 GHz, respectively. The AB028H1-14 features 36 dB of gain, +16 dBm of output power and 3 dB of noise figure. The AB038H1-14 offers 30 dB...
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