Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1995-12-01
1997-03-18
Le, Hoanganh T.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343817, 343819, H01Q 1930
Patent
active
056127065
ABSTRACT:
A driven element is disposed on an antenna axis for transmission of electromagnetic energy in a transmission direction along the antenna axis. First and second parasitic arrays are disposed on opposite sides of the antenna axis in the transmission direction from the driven element. At least a portion of the antenna axis adjacent to the parasitic arrays is without parasitic elements. Each parasitic array has a plurality of parallel parasitic elements or directors spaced apart along a respective array line that includes a proximal portion adjacent to the driven element that extends in a general direction that is at an acute angle to the transmission direction. The first and second parasitic arrays are sufficiently close to the antenna axis to produce a radiation pattern that has a lobe with greatest magnitude in the transmission direction.
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Anderson Edward B.
Le Hoanganh T.
Pacific Monolithics, Inc.
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