Liu, S.-I.S.-I.LiuChang, C.-C.C.-C.ChangSHEN-IUAN LIU2020-06-112020-06-111996https://scholars.lib.ntu.edu.tw/handle/123456789/499845A CMOS square-Law vector summation circuitjournal article10.1109/82.5084282-s2.0-0030191042https://www.scopus.com/inward/record.uri?eid=2-s2.0-0030191042&doi=10.1109%2f82.508428&partnerID=40&md5=c72be74aedfe8bc2656bd0e1b947873e