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Industry News

Smart Switches with a CAN Serial Communication Bus

Electromechanical switches for test equipment applications where fast system integration and system flexibility to modify and extend the switch layout are required are featured on this month's cover
February 1, 2000
Smart Switches with a CAN Serial Communication Bus Dow-Key Microwave Corp. Ventura, CA A new series of electromechanical switches has been developed that is targeted specifically at test equipment applications where fast system integration and system flexibility for modifying and extending switch layout are required. The unique switches are...
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An Ultradynamic Range GaAs Amplifier

A new IC amplifier that extends the linear efficiency advantages of the company's existing device to higher power levels
February 1, 2000
An Ultradynamic Range GaAs Amplifier Watkins-Johnson Co. Palo Alto, CA The model AH11 GaAs amplifier has been introduced to supplement the company’s line of linear GaAs components. Operating from a +5 V DC supply in a push-pull configuration, the new IC amplifier extends the linear efficiency advantages of the...
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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
February 1, 2000
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
February 1, 2000
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
February 1, 2000
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
February 1, 2000
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
February 1, 2000
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
February 1, 2000
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
February 1, 2000
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
February 1, 2000
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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