Communications: radio wave antennas – Antennas – Microstrip
Patent
1987-09-09
1990-06-26
Hille, Rolf
Communications: radio wave antennas
Antennas
Microstrip
343777, 343853, H01Q 138
Patent
active
049375857
ABSTRACT:
A microwave circuit module, more particularly an antenna, comprised of a polyethylene foam substrate having a loss tangent less 0.001 and a dielectric constant less than 1.3, a predetermined pattern of one or more elements, such as an array of n.times.m radiator elements, formed of electrically conductive material, deposited on a first surface of the substrate, and an electrically conductive ground plane secured to the opposite surface of the substrate. In the antenna embodiment, a feed network formed of electrically conductive material is deposited on said said first surface of the substrate for electrically interconnecting the radiator elements in the array; and I/O means are coupled to the feed network for supplying a signal to be transmitted by the antenna or for receiving a signal received by that antenna.
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Hille Rolf
Johnson Doris J.
Phasar Corporation
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