Communications: radio wave antennas – Antennas – Antenna with parasitic reflector
Patent
1991-07-19
1993-03-02
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Antenna with parasitic reflector
343916, H01Q 1516, H01Q 1912
Patent
active
051913500
ABSTRACT:
A parabolic low wind load antenna for receiving incoming MMDS signals wherein the antenna is essentially constructed of two identically formed, one-piece reflective halves connected together to form a rectangular shaped parabolic antenna. Each of the reflector halves comprises a substantially U-shaped rigid frame being parabolically shaped in the length dimension and being parabolically shaped in the width dimension. A plurality of reflector elements of circular cross-section and of equal length are oriented in parallel relationship to each other and are spaced apart from each other at a predetermined spacing of about ten percent of the MMDS wavelength. The predetermined spacing is determined in a plane perpendicular to the path of the incoming signals and each of the reflected elements is connected at its terminal ends to the sides of the U-shaped frame. Each of the reflector elements is formed in a full parabolic shape in the width dimension. Connectors are formed on the ends of the sides of the U-shaped frame for providing connection to the other identical reflector half. Near the center of the U-shaped frame is an additional structural parallel support for supporting the center of the linear reflector elements. These supports also terminate in connectors to which the feed of the antenna is connected and supported. All of the structural elements including the reflector elements are of a circular cross-section.
REFERENCES:
patent: 4295143 (1981-10-01), Winegard et al.
patent: 4527167 (1985-07-01), Miladinovic
Jerrold-UHF Stacked Bowties and UHF Yagi Antennas.
Channel Master-Stop By. Booth No. 24.
Block Down Converters by Pacific Monolithics.
Lance Industries-Microwave 3 Ft., 4 Ft. or 6 Ft. Dish Parabolics.
CableVision-Tanner Electric Systems Technology, Inc.
Microwave Section Parabolics by Lance Industries.
MDS Receiving Equipment by Conifer.
Channel Master Wireless Cable Equipment by Channel Master.
Conifer Corporation
Wimer Michael C.
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