Communications: radio wave antennas – Antennas – Wave guide type
Patent
1984-04-18
1986-09-30
Lieberman, Eli
Communications: radio wave antennas
Antennas
Wave guide type
343786, H01Q 138, H01Q 1308
Patent
active
046149473
ABSTRACT:
A planar high-frequency antenna having radiating elements for high-frequency signals includes at least two facing conductive plates provided with oppositely-arranged openings which cooperate to form respective cavities. Disposed between each pair of facing plates is a thin dielectric sheet supporting an array of strip conductors of coaxial lines forming suspended-substrate microstrip lines with these plates. Ends of the strip conductors extend into the cavities and form radiating elements. Each thin dielectric sheet is held in place between the facing plates by means of positioning spacers provided on the faces of these plates. The spacers are located in areas where there are no conductors on the dielectric sheet and are sufficiently remote from each other such that at least two cavities and/or lines of the network of strip conductors are located between any two spacers.
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patent: 3518688 (1970-06-01), Stayboldt et al.
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patent: 4131894 (1978-12-01), Schiavone
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patent: 4431996 (1984-02-01), Milligan
patent: 4486758 (1984-12-01), de Ronde
Collier, "Microstrip Antenna Array for 12 Ghz TV", Microwave Journal, vol. 20, No. 9, Sep. 1977, pp. 67-71.
Kraus Robert J.
Lieberman Eli
U.S. Philips Corporation
Wimer Michael C.
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