Device for positioning antennas inside a measurment chamber of t

Details Device for positioning antennas inside a measurment chamber of t Device for positioning antennas inside a measurment chamber of t

1994-06-14

1996-07-02

Le, Hoanganh

Communications: radio wave antennas

Antennas

Measuring signal energy

343757, 343877, 174 35MS, H01Q 112, G01R 2908

Patent

active

055327044

ABSTRACT:
The invention relates to a device for positioning antennas, the device comprising an assembly having an antenna-carrier mast movably mounted in a reserve provided between a particular absorbent wall of the measurement chamber and the adjacent wall of the envelope of the chamber; the mast passes through the particular wall via an associated slot to extend into the measurement chamber, each antenna is mounted to slide along the mast without interfering mechanically with any other antenna carried by the mast, thereby making it possible to position a desired antenna at a desired location while retracting the other antennas inside the reserve, behind the above-mentioned particular wall.

REFERENCES:
IEEE Transactions of Antennas and Propagation vol. AP-21, No. 4; juillet 1973, New York US pp. 490-498 Appel-Hansen `Reflectivity Level of Radio Anechoic Chambers` p. 496, alinea 2; figure 10.
Patent Abstracts of Japan vo. 16, No. 476 (P-1430) 5 Oct. 1992 & JP-A-04 169 865 (Ishino Takeshi) 17 Jun. 1992 *abrege*.

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