Communications: radio wave antennas – Antennas – Antenna with parasitic reflector
Patent
1987-05-01
1989-03-07
Sikes, William L.
Communications: radio wave antennas
Antennas
Antenna with parasitic reflector
H01Q 1516
Patent
active
048110310
ABSTRACT:
A DBS antenna comprises a support arm (10) which at its front end supports a converter/feed unit (12) and at its rear end is secured to a mounting bracket. The antenna dish (14) is mounted on the support arm (10), so that the dish (14) is supported by the arm (10) without mechanical loading from the converter/feed unit (12). The converter feed unit (12) may have a tapering cover portion (74) of sufficient electrical thickness to produce focussing of the signal into the waveguide feed.
REFERENCES:
patent: 3581311 (1971-05-01), Kach
patent: 4527166 (1985-07-01), Luly
patent: 4538175 (1985-08-01), Balses et al.
patent: 4656484 (1987-04-01), Brown et al.
Maile Graham
Seeney Philip
Borg-Warner Chemicals Europe BV
Johnson Doris J.
Sikes William L.
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