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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...

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...

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...

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...

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...

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....

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...

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....

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...

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)...