Communications: radio wave antennas – Antennas – Microstrip
Patent
1994-06-10
1996-10-01
Wimer, Michael C.
Communications: radio wave antennas
Antennas
Microstrip
343853, 342372, 342375, H01Q 138, H01Q 330, H01Q 2128
Patent
active
055614345
ABSTRACT:
In a dual band array antenna apparatus having a plurality of first phased array antenna elements for a low frequency and a plurality of second phased array antenna elements for a high frequency, one transceiver module is provided for a number of the phased array first antenna elements, and microstrip lines of the first phased array antenna elements are changed to obtain a desired phase distribution at the first phased array antenna elements. Also, one transceiver module is provided for each of the second phased array antenna elements.
REFERENCES:
patent: 4605932 (1986-08-01), Butscher et al.
patent: 4864314 (1989-09-01), Bond
patent: 5001493 (1991-03-01), Patin et al.
patent: 5206655 (1993-04-01), Caille et al.
patent: 5243354 (1993-09-01), Stern et al.
patent: 5386214 (1995-01-01), Sugawa
"Superimposed Dichroic Microstrip Antenna Arrays", by J. R. James et al, IEE Proceedings, vol. 135, Pt. H. No. 5, Oct. 1988.
"Antenna Engineering Handbook, Second Edition", by Richard C. Johnson et al, McGraw-Hill Book Company, 1984, pp. 2-34 through 2-39, 20-15 through 20-17, 21-15 through 21-18.
NEC Corporation
Wimer Michael C.
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