Transmit antenna
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United States of America Patent
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N/A
Issued Date -
Jul 27, 2006
app pub date -
Nov 6, 2003
filing date -
Nov 6, 2002
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A transmit antenna for a surface wave radar system, including a linear array of active monopole antenna elements for transmitting signals in respective frequency ranges. The relative spacings and the relative heights of successive elements along the array have logarithmic relationships. The transmit antenna includes impedance matching circuits for the active monopole antenna elements, and switches for selecting one of the active antenna elements to transmit a signal in a corresponding frequency range while grounding the remaining active antenna elements.
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