Title :
The IRIDIUMR main mission antenna concept
Author :
Schuss, J.J. ; Upton, J. ; Myers, B. ; Sikina, T. ; Rohwer, A. ; Makridakas, P. ; Francois, R. ; Wardle, L. ; Kreutel, W. ; Smith, R.
Author_Institution :
Raytheon Co., USA
fDate :
12/1/1997 12:00:00 AM
Abstract :
The design of a novel phased array panel that provides the L-band satellite to ground links for the IRIDIUM global communications system is presented. Key components and aspects of this phased array antenna are discussed, including the beamforming architecture, radiated intermodulation products, the patch radiators, and the T/R module. The strategy for minimizing DC power consumption over a large range of multicarrier rf output power is described. Finally, test results showing compliant array operation are summarized
Keywords :
antenna phased arrays; antenna radiation patterns; antenna testing; intermodulation distortion; microwave antenna arrays; satellite antennas; telecommunication power supplies; DC power consumption; IRIDIUM global communications system; L-band satellite; T/R module; beamforming architecture; compliant array operation; ground links; multicarrier rf output power; nonlinear effects; patch radiators; phased array antenna; phased array panel; radiated intermodulation products; Antenna accessories; Antenna arrays; Array signal processing; Artificial satellites; Energy consumption; Global communication; L-band; Phased arrays; Power generation; Testing;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
