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Title: T/R module development for large aperture L-band phased array
Authors: Chamberlain, Neil
Andricos, Constantine
Kumley, Kendra
Berkun, Andrew
Hodges, Richard
Spitz, Suzanne
Keywords: phased array
transmit / receive (T/R) module
space based radar
Issue Date: 5-Mar-2004
Publisher: Pasadena, CA : Jet Propulsion Laboratory, National Aeronautics and Space Administration, 2004.
Citation: IEEE Aerospace Conference, Big Sky, Montana, March 4-13, 2004
Abstract: This paper describes a transmit / receive (T/R) module for a large L-band space based radar active phased array being developed at JPL. Electrical performance and construction techniques are described, with emphasis on the former. The T/R modules have a bandwidth of more than 80 MHz centered at 1260MHz and support dual, switched polarizations. Phase and amplitude are controlled by a 6-bit phase shifter and a 6-bit attenuator, respectively. The transmitter power amplifier generates 2.4 W into a nominal 50 ohm load with 36% overall efficiency. The receiver noise figure is 4.4 dB including all front-end losses. The module weighs 32 g and has a footprint of 8 cm x 4.5 cm. Fourteen of these T/R modules were fabricated at the JPL Pick-and-Place Facility and were tested using a computer-controlled measurement facility developed at JPL. Calibrated performance of this set of T/R modules is presented and shows good agreement with design predictions.
Appears in Collections:JPL TRS 1992+

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