Boots – shoes – and leggings
Patent
1991-04-19
1993-10-12
Harvey, Jack B.
Boots, shoes, and leggings
36457101, 343808, G01R 3500
Patent
active
052531880
ABSTRACT:
An apparatus for testing a microwave phased array antenna having a plurality of radiating elements includes a transmission line for signal injection and switching components to selectively establish signal paths from a transmitter, and through a plurality of transmit/receive modules, to a performance monitor. In accordance with the present invention the switching components can be set to establish a receive signal path through the apparatus to test the receive mode of the individual modules. Alternatively, the switching components can be set to establish a transmit signal path through the apparatus to test the transmit mode of the individual modules. Further, the switching components can be set to selectively establish a receive signal path or a transmit signal path through either isolated individual modules or through all modules simultaneously. The system monitor then tests the signals which pass through the modules on the receive signal path and the transmit signal path to determine the operational status of the module and the phased array antenna.
REFERENCES:
patent: 4949090 (1990-08-01), Tamii et al.
patent: 5086302 (1992-02-01), Miller
Chu Ruey S.
Lee Kuan M.
Liu Sien-Chang C.
Denson-Low Wanda K.
Harvey Jack B.
Hughes Aircraft Company
Peeso Thomas
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