The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 19, 1985
Filed:
Nov. 03, 1981
Takashi Katagi, Kanagawa, JP;
Seiji Mano, Fujisawa, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
An antenna system includes a reflector and a primary and a subsidiary array antenna which are disposed in front of an aperture of the reflector so as to be positioned back-to-back with each other. An electric power which is supplied to the primary array antenna is also partly supplied to the subsidiary array antenna after it has been controlled in both phase and amplitude in order that a radiant beam from the subsidiary array antenna compensates for that portion of a secondary radiant beam from the reflector which is blocked by the primary array antenna. For example, a transmission source is connected to the primary array antenna through a coupler and a distributor while the coupler is connected to the subsidiary array antenna through a phase and an amplitude regulator and a distributor. The source may also be connected via the distributor to the primary array antenna formed of a plurality of radiating elements which are respectively connected to corresponding radiating elements of the subsidiary array antenna through couplers and delay lines or feeder lines.