Communications: radio wave antennas – Antennas – Microstrip
Patent
1976-06-30
1978-12-19
Lieberman, Eli
Communications: radio wave antennas
Antennas
Microstrip
343767, 333 84M, H01Q 138
Patent
active
041308220
ABSTRACT:
A stripline radiating element for use in a flat plate antenna array. The radiating element is comprised of a stripline sandwich including first and second stripline boards. A U-shaped slot is etched in the ground plane of the first stripline board and an open circuit transmission line is disposed between the two sandwiched boards for coupling energy to the slot. The inner dimensions of the slot form a strip transmission line with one end thereof, which is opposite the slot portion, being terminated in a short circuit which is formed by plated through holes between both ground planes of each individual stripline board. The length of the open circuited strip transmission line is adjusted to resonate with the slot susceptance and the reactance of the short circuited transmission line.
REFERENCES:
patent: 2996713 (1961-08-01), Boyer
patent: 3541557 (1970-11-01), Miley
patent: 3665480 (1972-05-01), Fassett
patent: 3947850 (1976-03-01), Kaloi
patent: 4017864 (1977-04-01), Proctor
Bingham Michael D.
Lieberman Eli
Motorola Inc.
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