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A cryogenic K-band ground terminal for NASA'S direct-data-distribution space experiment

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7 Author(s)
Romanofsky, R.R. ; NASA Glenn Res. Center, Cleveland, OH, USA ; Warner, Joseph D. ; Alterovitz, Samuel A. ; Covey, L.
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A K-band receiver terminal has been designed for ≈77-K operation to support the NASA Glenn Research Center's direct-data-distribution (D3) spare experiment. The D2 experiment involves a 256-element phased-array antenna, aboard the Space Shuttle, transmitting dual 622-Mb/s beams to the ground terminal. The beams are left- and right-hand-side circularly polarized for isolation. The terminal consists of a Cassegrain reflector antenna with a corrugated feed horn, a six-pole YBa2Cu3O 7(-δ) microstrip bandpass filter, a three-stage InP high electron-mobility transistor monolithic-microwave integrated-circuit amplifier, and a 1-W at 80-K Stirling cycle cryocooler

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:48 ,  Issue: 7 )