Stamp-and-bend double-tuned radiating elements and antennas

Details Stamp-and-bend double-tuned radiating elements and antennas Stamp-and-bend double-tuned radiating elements and antennas

1999-01-06

2000-04-04

Wong, Don

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

343795, 343822, H01Q 928

Patent

active

060467045

ABSTRACT:
Double-tuned radiating elements 10 for cellular antennas are configured to enable stamping in one piece from flat sheet metal. Unitary construction incorporates a radiating section 22, an exciter section 14 and a balun section 12 in each radiating element. After the element is formed in one flat piece, a 90 degree bend is made along bend line BL to position radiating section 22 normal to the exciter and balun sections. When mounted in an antenna with the exciter and balun sections 14 and 12 parallel to a conductive ground plane surface, radiating section 22 extends forward normal to the ground plane surface. Radiating section 22 and exciter section 14 are fed by direct coupling to balun section 12, via shared current paths.

REFERENCES:
patent: 4445122 (1984-04-01), Pues
patent: 4513292 (1985-04-01), Bowman
patent: 4816839 (1989-03-01), Landt

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