Orthomode junction assembly with associated filters for use in an antenna feed system
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United States of America Patent
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Issued Date -
Jan 14, 2010
app pub date -
Jul 14, 2009
filing date -
Jul 14, 2008
priority date (Note) -
Abandoned
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Abstract
A reverse orthomode junction assembly with associated filters for use in an antenna feed system for transmitting a first electromagnetic signal at a first frequency range lower than the second frequency range of a receive second electromagnetic signal. The assembly includes an orthomode junction with an antenna port for connecting to an antenna, an opposed generally coaxial first signal port to transmit the first signal, and a generally perpendicular second signal port, located there between, to receive the second signal. A first signal channel having on-axis second signal reject filters connects to the first port; and a second signal channel having cross-axis first signal reject filters connects to the second port. The use of a magic-tee as a combiner for the receive signal provides tracking capability to the antenna feed system.
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