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Industry News

LDMOS Transistors for FM Broadband Applications

Laterally diffused metal oxide semiconductor (LDMOS) technology as a viable solution for frequencies covering the high HF through high UHF bands
LDMOS Transistors for FM Broadband Applications STMicroelectronics Inc. Montgomeryville, PA High efficiency and high gain amplifiers for FM transmitters are possible today with laterally diffused metal oxide semiconductor (LDMOS) technology. Presently, LDMOS RF power transistors are the proven mainstay in the high volume cellular base station power amplifier business,...
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A GPS Module for CDMA and UMTS Synchronization

A new card-level Global Posistioning System (GPS) receiver module that provides synchronization for CDMA and Universal Mobile Telecommunications System (UMTS) mobile networks using the GPS signal and a high performance oven-controlled crystal oscillator
A GPS Module for CDMA and UMTS Synchronization Oscilloquartz SA Neuchatel, Switzerland Without precise timing, today’s new communications signals can lose data in their translation, particularly in the areas of light-speed data and broadband systems. Due to the emerging standards in mobile telecommunications and digital broadcasting, the quality of...
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A Microstrip Antenna with Fractal Multilayer Substrates

A novel method of microstrip antenna construction that relies on multilayer substrates configured in a manner governed by fractal Cantor sets
Technical Note A Microstrip Antenna with Fractal Multilayer Substrates Xu Liang and Chia Yan Wah Michael Please click here to view the pdf file of the Technical Note...
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A C-band Low Power High Dynamic Range GaAs MESFET Low Noise Amplifier

A low power, high input third-order intercept point cascode low noise amplifier for C-band wireless data applications
Technical Feature A C-band Low Power High Dynamic Range GaAs MESFET Low Noise Amplifier S. Yoo, M.R. Murti, D. Heo and J. Laskar Please click here to view the pdf file of the Technical Feature...
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A Low Cost, High Accuracy Radar Altimeter

Development of a frequency modulated radar altimeter to be used for flying object height measurement
Technical Feature A Low Cost, High Accuracy Radar Altimeter Giorgos E. Stratakos, Paul Bougas and Kostas Gotsis Please click here to view the pdf file of the Technical Feature...
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Coupled Triplets

A look at the trend toward using coupling between nonadjacent resonators to form finite attenuation peaks
Coupled Triplets Albert J. Klappenberger and William B. Lurie ALK Engineering Salisbury, MD As the state of the art in L-C filter design realization moves forward to satisfy the changing demands of today’s requirements, it appears that some of the more sophisticated techniques are giving way to older, less...
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Integral Resistors in High Frequency Printed Wiring Boards

Integral resistors in the form of planar resistor technology in printed wiring boards that have become a tool of the circuit designer for addressing increasingly complex packaging demands
Integral Resistors in High Frequency Printed Wiring Boards Bruce P. Mahler Ohmega Technologies Inc. Culver City, CA The growing need to eliminate discrete resistors is driven by design trends toward faster speeds, shorter trace lengths and smaller boards with higher component densities. Printed wiring boards (PWB) have become complex...
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RF Receiver Requirements for 3G W-CDMA Mobile Equipment

Detailed specifications for a wideband CDMA (W-CDMA) receiver derived in terms recognizable by the RF designer
Technical Feature RF Receiver Requirements for 3G W-CDMA Mobile Equipment O.K. Jensen, T.E. Kolding, C.R. Iversen, S. Laursen, R.V. Reynisson, J.H. Mikkelsen, E. Pedersen, M.B. Jenner and T. Larsen Please click here to view the pdf file of the Technical Feature...
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Radiating Elements for Wideband Phased Arrays

The principles of electronically scanned arrays applied to the selection of a radiating element for an array
Technical Feature Radiating Elements for Wideband Phased Arrays Warren L. Stutzman and Carey G. Buxton Please click here to view the pdf file of the Technical Feature...
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Computer-aided Design of Ultrabroadband 100 MHz to 20 GHz Amplifers

Design and fabrication of ultrabroadband feedback amplifiers using the negative feedback concept
Technical Feature Computer-aided Design of Ultrabroadband 100 MHz to 20 GHz Amplifiers A.S. Virdee and B.S. Virdee Please click here to view the pdf file of the Technical Feature...
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