Dual frequency, dual polarized, multi-layered microstrip slot an

Details Dual frequency, dual polarized, multi-layered microstrip slot an Dual frequency, dual polarized, multi-layered microstrip slot an

1992-12-03

1995-03-21

Hajec, Donald

Communications: radio wave antennas

Antennas

Plural separate diverse type

343770, 343793, 343853, H01Q 2100

Patent

active

054000424

ABSTRACT:
An antenna array system is disclosed which uses subarrays of slots and subarrays of dipoles on separate planes. The slots and dipoles respectively are interleaved, which is to say there is minimal overlap between them. Each subarray includes a microstrip transmission line and a plurality of elements extending perpendicular thereto. The dipoles form the transmission elements and the slots form the receive elements. The plane in which the slots are formed also forms a ground plane for the dipoles--hence the feed to the dipole is on the opposite side of this ground plane as the feed to the slots. HPAs are located adjacent the dipoles on one side of the substrate and LNAs are located adjacent the slots on the other side of the substrate. The dipoles and slots are tuned by setting different offsets between each element and the microstrip transmission line.

REFERENCES:
patent: 3747114 (1973-07-01), Shyhalla
patent: 4040060 (1977-08-01), Kaloi
patent: 4054874 (1977-10-01), Oltman, Jr.
patent: 4922263 (1990-05-01), Dubost et al.
patent: 4926189 (1990-05-01), Zaghloul et al.
patent: 4929959 (1990-05-01), Sorbello et al.
patent: 5038151 (1991-08-01), Kaminski
Densmore et al., Commercial Applications Of The Acts Mobile Terminal Millimeter-Wave Antennas, Technology 2001, The Second National Technology Transfer Conference and Exhibition, Dec. 3-5, 1991, pp. 47-51.
Densmore et al., Two K/Ka-BAND Mechanically Steered, Land-Mobile Antennas For The NASA Acts Mobile Terminal, CIT Patent Office, pp. 1-9 and FIGS. 1-13.

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