A four-way power combiner/splitter is disclosed that includes a first transmission line having a first non-grounding conductor and a first grounding conductor, wherein the first grounding conductor is grounded at a first end of the first transmission line. The combiner/splitter also has a second transmission...http://www.google.co.uk/patents/US6486749?utm_source=gb-gplus-sharePatent US6486749 - Four-way power combiner/splitter
