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Industry News

Kulicke & Soffa to Acquire Alphasem

Kulicke & Soffa Industries Inc. announced the signing of an agreement to acquire Alphasem , a supplier of die bonder equipment, from Dover Technologies International Inc., a subsidiary of Dover Corp. The purchase price is $30 M, subject to a working capital adjustment. The acquisition is expected to close...
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Maury Microwave Begins 50th Year

October 15 th , 2006 marks the beginning of Maury Microwave Corp. 's 50 th year in business. On that day in 1957 the company first opened its doors as Maury and Associates, under the leadership of founder Mario A. Maury. With the help of his sons, Mario A....
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Ask Harlan, October 16, 2006

Harlan Howe has 34 years experience as a microwave design engineer and fifteen as publisher and editor of Microwave Journal ® , and is an IEEE Fellow and past president of MTT-S. He's here to answer your questions on RF and Microwave engineering.
Published October 13, 2006 From: Syed Abbas, College of Aeronautical Engineering Dear Harlan, How can I cater the power rating of an RF power combiner/splitter? Please specify the power rating of 250, 500 and 1000 W for a wideband application of 100 to 500 MHz. Dear Syed, There is...
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New Products

Ka-band SATCOM LNA The model APTW4-18002650-2510-42 is a waveguide (WR-42) amplifier that operates in a frequency range from 18 to 26.5 GHz. This model offers an ultra low noise figure of 2.2 dB (191.3 K) maximum and a minimum output power of +10 dBm (+20 dBm IP3). Optimized bandwidth...
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The Book End

Ultra Wideband Signals and Systems in Communication Engineering M. Ghavami, L.B. Michael and R. Kohno John Wiley & Sons Ltd. • 275 pages; $90 This book focuses on the basic signal processing that underlies current and future ultra wideband (UWB) systems. The introduction offers a brief look at why...
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A Broadband Double Dipole Antenna with Triangle and Rhombus Shapes and Stable End-fire Radiation Patterns for Phased-array Antenna Systems

A broadband microstrip-fed printed antenna is presented for phased-array antenna systems. The presented antenna consists of two parallel dipoles of different lengths to obtain two main resonances. The distance between the two dipoles is adjusted to red...
Microstrip antennas have recently gained wide popularity, because they exhibit a low profile, small size, lightweight, low manufacturing cost, high efficiency, and an easy method of fabrication and installation. Furthermore, they are generally economical to produce since they are readily adaptable to hybrid and monolithic integrated circuit fabrication techniques...
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Frequency Converters: Understanding the Benefits of Simple and Complex Architectures

Frequency converters are rapidly becoming the only analog building block in a variety of RF and microwave systems. This trend is obvious in wireless consumer products, instrumentation, radar and radar-warning systems, telemetry and secure communications. The advent of synthetic instruments puts frequency converters at center stage within the RF...
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A Practical Design of a Low Phase Noise Airborne X-band Frequency Synthesizer

Frequency synthesizers have been well studied, but difficult problems sometimes arise in their practical implementations. The major concern of synthesizer designers is the phase noise. It is critically important in Doppler radar, frequency-agile radar and various communications systems. In such applications, a synthesizer’s phase noise may set the system’s...
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Northrop Grumman Tests Confirm Performance of Advanced EHF Array

The downlink phased-array antenna developed by Northrop Grumman for the Advanced Extremely High Frequency (EHF) military satellite communications payload has completed range tests that confirmed performance predictions. The company will provide the Advanced EHF payloads to Lockheed Martin, prime contractor for the Advanced EHF system. Test results demonstrated antenna...
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