Broadband transmitting antenna for test chamber

Communications: radio wave antennas – Antennas – Measuring signal energy

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Details

343826, H01Q 136, G01R 2908

Patent

active

042323193

ABSTRACT:
A broadband antenna for electromagnetic interference testing within a test chamber of limited dimensions includes a triangular array of tuned, quarter-wavelength monopole antenna elements with a common feed point in a plane parallel to elements defining a ground plane. The tuned elements transmit electromagnetic signals down to a low limiting resonant frequency determined by the longest element and further comprise, with the ground plane elements, a capacitor to transmit longer wavelength signals by a varying electric field between the triangular array and ground plane.

REFERENCES:
patent: 884071 (1908-04-01), Cabot
patent: 3179943 (1965-04-01), Buzbee
patent: 3550145 (1970-12-01), Tai

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