Microwave plate antenna printed on a substrate

Details Microwave plate antenna printed on a substrate Microwave plate antenna printed on a substrate

1991-09-19

1994-11-22

Hajec, Donald

Communications: radio wave antennas

Antennas

Microstrip

343731, H01Q 138

Patent

active

053673077

ABSTRACT:
The present invention relates to a micro-wave plate antenna, especially for Doppler radar for example, of the type with a Janus configuration, made up of a plurality of linear sub-networks parallel among themselves, or of a single linear sub-network, each sub-network being made up of a plurality of radiating elements placed on each side of a sub-network feed line, the sub-networks being fed in phase, the length of the sub-network feed line is, between two neighboring elements, a whole multiple of the length of the wave guided over the substratum of the printed circuit on which are printed the radiating elements, and that corresponds to the operational frequency of the antenna. It is such that between two neighboring radiating elements of a same sub-network, the sub-network feed line has at least one bend so that the distance projected on the axis parallel to the transverse direction of the sub-network between two consecutive radiating elements of a same sub-network is inferior to the dimension of these elements in that direction.

REFERENCES:
patent: 3419870 (1968-12-01), Wong
patent: 4398199 (1983-08-01), Makimoto et al.
patent: 4899163 (1990-02-01), Daniel et al.

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