Contact-free element for transition between waveguide and microstrip line for local multipoint distribution system, has flange on substrate and cavity with specific dimension to realize impedance matching with waveguide

摘要

The element has flange (20) on substrate (30) with a conductive footprint for connection to lower surface of flange, and cavity (41) with specific dimension to realize impedance matching with waveguide (10), at opposite to the extremity of waveguide under the substrate.