Stamp-and-bend double-tuned radiating elements and antennas
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United States of America Patent
Stats
-
Apr 4, 2000
Grant Date -
N/A
app pub date -
Jan 6, 1999
filing date -
Jan 6, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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