Conventionally, waveguide terminals formed in a plurality of dielectric substrates are joined together by mounting the dielectric substrates on carriers and fastening them to a waveguide adapter with screws. In the present invention, to reduce cost and improve machinability, a plurality of solders 7...http://www.google.es/patents/US7190243?utm_source=gb-gplus-sharePatente US7190243 - Waveguide coupler
