Helical antenna array with resonant cavity and impedance matching means
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United States of America Patent
Stats
-
Jul 14, 1987
Grant Date -
N/A
app pub date -
Jun 27, 1984
filing date -
Jul 1, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An antenna is formed of four arrays each having sixteen helical antenna elements with probes located within a common resonant cavity. Thus cavity is used to combine all the outputs of elements. The elements of array are arranged over the surface of box such that the probes are located at the voltage antinodes of the resonance field patterns in order to maximize the coupling efficiency. Likewise the output probe for each cavity 6 is also located at a voltage antinode; output probe enables the signal combined in cavity to pass into a waveguide, also connected to other arrays and, for passage to the television receiver.
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