LOW LOSSES POWER DISTRIBUTION NETWORKS IN STRIPLINE TECHNOLOGY FOR PLANAR ARRAY ANTENNAS

Nowadays low profile passive array planar antennas are being more and more used substituting traditional parabolic antennas in satellite communications. To achieve a good efficiency in printed arrays it is necessary to use a low losses network. A shielded suspended stripline is proposed in this paper. The main aim of this network is to distribute the power among subarrays in an array antenna with minimum losses. Several vertical transitions to subarrays are shown besides some network designs for square arrays at X band.