Communications: radio wave antennas – Antennas – Spiral or helical type
Patent
1987-01-13
1989-01-10
Sikes, William L.
Communications: radio wave antennas
Antennas
Spiral or helical type
343772, 343822, H01Q 136
Patent
active
047976845
ABSTRACT:
A waveguide-fed microwave system particularly for cavity-backed spiral antennas for the Ka band comprises a waveguide transmission line; a microwave device having a pair of balanced, parallel feed wires; and a doubled tapered ridge transformer directly connecting the waveguide transmission line to the balanced, parallel feed wires of the microwave device providing a direct symmetrical transition between the waveguide transmission line and the microwave device.
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patent: 4370659 (1983-01-01), Chu et al.
patent: 4609888 (1986-09-01), Corzine et al.
"The Spiral Antenna", Bower, R., et al., International Convention Record, Alexandria, Va., 1960, pp. 84-95.
Thorvaldesen, T., "Spiral Antenna with Integrated Detector," Electronic Letters, vol. 16, NOR, pp. 484-486 (6/80).
Walton, K. L., et al, "Broadband Ridged Horn Design," Microwave Journal, vol. 7, pp. 96-101 (3/64).
Singh, D. R., et al. "Straightfoward Approach Produces Broadband Transitions," Microwaves and RF, pp. 113-118 (9/84).
Bernstein Joel
Spinner Samuel
Barish Benjamin J.
Elisra Electronic Systems Ltd.
Johnson Doris J.
Sikes William L.
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