chapter ii - empfangsumsetzer suitable for miniaturization

摘要

In a satellite broadcast reception converter, probes are equipped in a circular hole formed in a first circuit board, and plural fixing holes are formed around the circular hole. Snap pawls are formed at the open ends of the waveguides formed of sheet metal. The respective snap pawls are inserted in the fixing holes of the first circuit board so as to project to the back surface side of the first circuit board, and the fixing holes of the short caps are snapped into the snap pawls, whereby the first circuit board 6 is pinched and fixed between the waveguides and the short caps. Further, a dielectric feeder of synthetic resin supported on each waveguide is constructed by a first split body having a radiation portion projected from the open end of each waveguide and a second split body having a phase converter fixed in the waveguide, and the first split body and the second split body are unified by inserting a projection equipped to the second split body into a through hole formed at the center of the first split body. IMAGE