Lai, R.-B.R.-B.LaiChao, S.-F.S.-F.ChaoTsai, Z.-M.Z.-M.TsaiLee, J.J.LeeHUEI WANG2020-06-042020-06-042008https://www.scopus.com/inward/record.uri?eid=2-s2.0-47649101571&doi=10.1109%2fTMTT.2008.924352&partnerID=40&md5=493a1cc23c95b957242458034fee31e5This paper discusses different topologies for millimeter-wave (MMW) multiple-port switches, and analyzes the insertion loss, isolation, and limitation of bandwidth. It is observed the performances of a MMW multiple-port switch are decided by both multiple-port topology and the structure of the constituted unit single-pole-single-throw switches, but dominated by its topology. To verify the analysis, two types of multiple-port switch are designed, one is a distributed switch and the other is based on a filter-integrated switch, using different topologies. The net-type multiple-port topology based on a distributed switch demonstrates a measured insertion loss of 4-5 dB with isolation better than 25 dB in 48-65 GHz. In 43-66 GHz, the binary-ring multiple-port topology based on a filter-integrated switch shows a measured insertion loss of 3-4.5 dB with isolation better than 30 dB. © 2008 IEEE.HEMT; Monolithic microwave integrated circuit (MMIC); Multiple port; Single-pole single-throw (SPST); Switch[SDGs]SDG7journal article10.1109/TMTT.2008.9243522-s2.0-47649101571