Integrated antenna for satellite and terrestrial broadcast recep

Details Integrated antenna for satellite and terrestrial broadcast recep Integrated antenna for satellite and terrestrial broadcast recep

1995-03-27

1997-02-25

Hajec, Donald T.

Communications: radio wave antennas

Antennas

Antenna with parasitic reflector

343753, 343755, 343914, H01Q 1912

Patent

active

056063342

ABSTRACT:
A compact and flat antenna that provides both Direct Broadcast Satellite and local off-air reception. The flat reflector is made of a composite material with multiple reflective radiating surfaces. The multi-stepped reflector combines both diffraction and refractive principals to collimate Radio Frequency signal waves to a short focal point. At the focal point a phase correcting splash plate and lens direct the RF signal through a low loss axis-fed circular waveguide and then to a low noise amplifier. This compact design reduces space, cost and over-all structure, which presents an aesthetically pleasing satellite communication antenna. The antenna aperture includes a VHF/UHF antenna element for reception of local and/or off-air broadcast TV signals eliminating the need and cost to install a separate antenna.

REFERENCES:
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patent: 4825223 (1989-04-01), Moore
patent: 5257032 (1993-10-01), Diamond
patent: 5300936 (1994-04-01), Izadian
patent: 5434580 (1995-07-01), Raguenet et al.
The New Age of Earth Station Technology by Karen JP Howes, Via Satellite, May 1994, pp. 42, 44, 46.

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