Loop antenna apparatus with variable directivity

Details Loop antenna apparatus with variable directivity Loop antenna apparatus with variable directivity

1981-02-11

1982-11-09

Moore, David K.

Communications: radio wave antennas

Antennas

High frequency type loops

343743, 343741, H01Q 1112

Patent

active

043587690

ABSTRACT:
A loop antenna apparatus is disclosed which includes a main conductive loop arranged on a first surface, a plurality of supplemental conductive loops connected to the main conductive loop and arranged on different surfaces from the first surface, respectively, a plurality of signal feeding points provided in different loops of the main and supplemental conductive loops, an output terminal and change-over switches for selectively connecting one of the plurality of signal feeding points to the output terminal.

REFERENCES:
patent: 2650303 (1953-08-01), Schlesinger
patent: 4169265 (1979-09-01), Howell et al.

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