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K/Ka-Band Receive/Transmit Silicon Planar Phased Arrays for SATCOM


This dissertation focuses on building state-of-the-art planar, all-silicon active electronically scanned array (AESA) for satellite communications (SATCOM) ground terminals and SATCOM on-the-move (SOTM) terminals, as well as emerging non geosynchronous orbits (GEO) SATCOM systems. Three Ka-band phased-arrays transmitters (a 256-element array capable of 1-D scan, a 256-element array capable of 2-D scan, and a 1024-element array capable of 2-D scan) and one K-band phased-array receiver (1024-element) are presented. The planar phased-arrays integrate commercially available silicon beamformer chips, silicon low noise amplifier (LNA) chips, printed Wilkinson divider/combiner beamforming network (BFN), and printed planar dual-polarized patch antennas on a single printed circuit board (PCB) and represent the highest level of integration at millimeter-waves. The 1024-element phased-arrays, in particular, have record results in published effective isotropic radiated power (EIRP) and gain to noise temperature (G/T) for K/Ka-band planar phased-arrays for SATCOM applications.

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