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Industry News

A Hardware Multichannel Simulator for Wideband Wireless Systems

Introduction to a wideband multichannel simulator with eight fading channels, 70 MHz RF bandwidth and spatial channel modeling
Product Feature A Hardware Multichannel Simulator for Wideband Wireless Systems Elektrobit Kauniainen, Finland Hardware-based multipath fading simulators have traditionally been used to generate up to two simultaneous fading channels. Mobile network testing and future wireless applications like geolocation, smart antennas and multiple input multiple output (MIMO) systems, however, require...
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Stainless Steel Coaxial Cable with Medium Loss at 36 GHz

Development of a high performance stainless steel coaxial cable with medium loss at 36 GHz
Product Feature Stainless Steel Coaxial Cable with Medium Loss at 36 GHz Fig. 1 Loss per 100 ft. vs. frequency. Anyone who has tried to use copper cable for high frequency connections in high stress environments knows that it does not hold up very well for long. Attempts to...
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Optimum Design for Linearity and Efficiency of a Microwave Doherty Amplifier Using a New Load Matching Technique

Presentation of a new design technique to match the complex load impedance of a Doherty amplifier for various power levels using offset transmission lines at the load modulation network
Technical Feature Optimum Design for Linearity and Efficiency of a Microwave Doherty Amplifier Using a New Load Matching Technique A Doherty amplifier with full load matching circuits of the carrier and peaking amplifiers at both low and high power levels is demonstrated for the first time. In the circuit...
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A High Efficiency, Low Cost Silicon Bipolar GSM Dual-band PA Module

Presentation of the design and measurement data for a PA module using silicon RF-IC bipolar chip technology on a simple ceramic substrate
Technical Feature A High Efficiency, Low Cost Silicon Bipolar GSM Dual-band PA Module T. Johansson, P. Lundin, J. Engvall and D. Uggla Ericsson Microelectronics AB Kista, Sweden U. Hagström Ericsson Microwave Systems AB Mölndal, Sweden As the wireless communication business continues to expand, there is great demand for reducing...
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Editorial Index

A complete listing of 2001 Microwave Journal articles organized by subject and indexed alphabetically by author
Editorial Index ANTENNAS Clarke, Roger "A High Efficiency Bow-tie Antenna for Impulse Propagation," No. 8, p. 94. González, V., J.M. Rodríguez, J.E. González, C. Rueda and C. Martín Pascual "Design Methodology for High Efficiency Active Radiators," No. 9, p. 168. McCarrick, Charles D. "A Combination Monopole/Quadrifilar Helix Antenna for...
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A Broadband, Four-bit, Ka-band MMIC Phase Shifter

Introduction to the design, fabrication and measurement of a broadband, four-bit, GaAs phase shifter at Ka-band frequencies
Technical Feature A Broadband, Four-bit, Ka-band MMIC Phase Shifter A compact, robust and broadband, four-bit, Ka-band phase shifter was designed and fabricated in a standard 0.25 m m PHEMT GaAs process. Design trade-offs, simulation versus measured results and architectures for the various bits to achieve broadband performance are discussed....
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New Products

New Products COMPONENTS Broadband mmWave Mixer The model AM028S1-A2 broadband mmwave mixer utilizes the company's patent-pending Alpha-2™ package technology to produce performance and price advantages. It features a 26 to 33 GHz frequency range, low conversion loss, wide IF bandwidth and surface-mount packaging, making the mixer ideal for high...
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Around The Circuit

Around The Circuit INDUSTRY NEWS Anaren Microwave Inc. has acquired all of the outstanding capital stock of Amitron Inc. Amitron is a manufacturer of precision thick film ceramic components and circuits for the medical, telecommunications and defense electronics markets. Financial details of the acquisition were not disclosed. REMEC Inc....
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New Literature

New Literature Company Booklet This booklet takes a journey through the development of 20th century communications and the company's test and measurement contributions. The focus of the booklet is on the historical achievements rather than present-day trends. Agilent Technologies, Santa Rosa, CA (800) 452-4844. Circle No. 200 Thick Film...
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Workshops & Courses

Workshops & Courses Microwave Measurements Short Course Topics: Microwave measurement fundamentals, microwave circuit theory, vector network analyzers, scattering parameters, power, thermal noise and phase noise, and nonlinear measurements. Site: San Diego, CA Dates: November 27-28, 2001 Contact: David K. Walker, NIST, M.S. 813.01, 325 Broadway, Boulder, CO 80305 (303)...
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