Anechoic chamber

Details Anechoic chamber Anechoic chamber

1982-07-16

1985-03-26

Wilbur, Maynard R.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

H01Q 1700

Patent

active

045076600

ABSTRACT:
An anechoic chamber utilizes an expanded central area resembling two flared horns with their rims fastened together, with the general vertex area of one of the horns forming the source area of the chamber and the other end the test or receiver end, there being adequate room beneath the two ends to include as part of the chamber rooms outside the chamber shell for housing the transmitter and receiver equipment. The purpose of the flare is to reduce shallow angle incidence on the walls of the chamber to improve performance by decreasing reflectivity.

REFERENCES:
patent: 1834875 (1931-12-01), Schaafhausen
patent: 2293181 (1942-08-01), Terman
patent: 2461005 (1949-02-01), Southworth
patent: 2511597 (1950-06-01), Marx
patent: 2842222 (1958-07-01), Hughett
patent: 3058015 (1962-10-01), Nesh
patent: 3120641 (1964-02-01), Buckley
patent: 3308463 (1967-03-01), Emerson
patent: 3692142 (1972-09-01), Stemp
patent: 3806943 (1974-04-01), Holloway
patent: 4106345 (1978-08-01), Saunders et al.
patent: 4113051 (1978-09-01), Moller
patent: 4357449 (1982-11-01), Bruel
Potter, Stannard M., Noise Abatement Structure Prefabricated Style, 3/1956, pp. 73-102.
K. Koob & B. Liesenkotter, The Semi Open Anechoic Chamber Microwave Journal (USA) vol. 21, No. 6, (Jun. 1978).

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