A balun design incorporating the functions of a splitter (combiner) which can be employed in a high power amplifier circuit configuration. The balun is formed of a dielectric multilayer board with conductor patterns on each conductor pattern layer. The balun includes the propagation of a half of an input...http://www.google.de/patents/US6803837?utm_source=gb-gplus-sharePatent US6803837 - Power splitter/combiner circuit, high power amplifier and balun circuit
