Communications: radio wave antennas – Antennas – Balanced doublet - centerfed
Patent
1959-12-17
1977-05-10
Hubler, Malcolm F.
Communications: radio wave antennas
Antennas
Balanced doublet - centerfed
343100LE, G01S 332, G01S 922
Patent
active
040231720
ABSTRACT:
1. A radio receiving system comprising a directional antenna having a boresight axis and a pair of main antenna feed horns equally spaced from and normal to said axis, with an auxiliary pair of similar antenna feed horns disposed in alignment with the main pair and spaced farther from said axis, a multiple channel receiver, first feed means connecting a first channel of said receiver to the main pair of said antenna feed horns for providing a first output said first output having a radiation receiving pattern including a desired main lobe and undesired side lobes, second feed means connected to said auxiliary pair of antenna feed horns, and means in said receiver connected to said second feed means for providing a second output, said second output having a directional receiving pattern which is greater than said radiation pattern at all angles beyond those defining a central portion of the main lobe, and means for obtaining a signal output from said receiver in response to the difference between said first and second outputs.
REFERENCES:
patent: 1154897 (1957-11-01), Blassel
patent: 2804614 (1957-08-01), Alvarez
patent: 2825900 (1958-03-01), Collbohm
Hubler Malcolm F.
Numax Electronics Incorporated
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