Microwave antenna transmission device having a stripline to wave

Details Microwave antenna transmission device having a stripline to wave Microwave antenna transmission device having a stripline to wave

1998-05-22

2000-06-27

Lee, Benny T.

Communications: radio wave antennas

Antennas

Slot type

333 26, H01Q 1310, H01P 5107

Patent

active

060812419

ABSTRACT:
A device for the power transmission of microwaves between a strip-line and a number of parallel cavity waveguides arranged in a group antenna. The strip-line includes H-shaped slots. These slots are centered with respect to a central conductor. Opposite each of the slots, a corresponding slot is arranged through the wall of the cavity waveguide. Electrically conducting seals are arranged to follow immediately outside the contours of the slots. The strip-line is fixedly fastened to the seals and the ridge waveguide, whereby good electrical coupling is achieved. Simultaneously, small cavities are formed between the slots. These cavities have a leveling effect such that the demands on mechanical precision is appreciably lowered, such that the tolerance to placement of the slots opposite to each other is increased substantially as compared to the case of the waveguides directly abutting the strip-line.

REFERENCES:
patent: 2939093 (1960-05-01), Marie
patent: 2976499 (1961-03-01), Sferrezza
patent: 3708767 (1973-01-01), Moore
patent: 5028891 (1991-07-01), Lagerlof
patent: 5414394 (1995-05-01), Gamand et al.
patent: 5539361 (1996-07-01), Davidovitz
Jonas Flodin, "Optimization of the Feeding of a Waveguide Slot Antenna, for a Given Frequency and Scan Angle Band", Antenna 1997, May 27-29, 1997, Gothenburg, Sweden, pp. 135-141.

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