Antenna compensation for differential thermal expansion rates

Details Antenna compensation for differential thermal expansion rates Antenna compensation for differential thermal expansion rates

1997-01-22

1999-04-20

Hajec, Donald T.

Communications: radio wave antennas

Antennas

With housing or protective covering

343829, 343830, H01Q 142

Patent

active

058961127

ABSTRACT:
An antenna (1) has a radome (2) and a conducting ground plane (6) bridging between conducting end caps (4), a circuit board (5) supported on the ground plane (6), rf antenna elements (7) on the circuit board (5), opposite ends of the ground plane (6) being slidable relative to respective end caps (4) in response to thermal expansion of the ground plane (6), and the circuit board (5) being slidable relative to the ground plane (6) in response to thermal expansion of the ground plane (6).

REFERENCES:
patent: 3293646 (1966-12-01), Brueckmann
patent: 3969730 (1976-07-01), Fuchser
patent: 4031537 (1977-06-01), Alford
patent: 4749997 (1988-06-01), Canonico
patent: 4851859 (1989-07-01), Rappaport

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