Abstract
This contribution presents a vertical transition between a WR34 rectangular waveguide (RWG) and two grounded coplanar waveguides (GCPW). It is intended for dual-band phased array applications and thus includes a diplexer. The RWG is the common port and the GCPWs are the diplexed 20- and 30-GHz ports. This yields a very compact design compared to conventional cascaded circuit topologies. The realized component exhibits a port matching and isolation exceeding 10 and 30 dB, respectively, over more than 500 MHz in both bands.
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