{"title":"HF-VHF-UHF IQ混频器与单个SPDT开关","authors":"R. Campbell","doi":"10.1109/MWSYM.2015.7166867","DOIUrl":null,"url":null,"abstract":"An I Q mixer topology using passive components and a single SPDT switch is described with simulations and measurements at 7 MHz and 144 MHz. A test fixture permits experiments with a variety of switch candidates. Results are presented for MOSFET switches and an SPDT switch using a hybrid coil and ring of Schottky diodes. SSB conversion loss is near 6 dB. Measured IIP3 is +16 dBm for a MOSFET switch and +6 dBm for the diodes. The Schottky version exhibits much better 2nd order performance and stability of amplitude and phase differences between I and Q ports. Results at VHF using surface mount components suggest that the Schottky diode/hybrid coil switch is a promising candidate for low power near-zero IF applications.","PeriodicalId":6493,"journal":{"name":"2015 IEEE MTT-S International Microwave Symposium","volume":"40 1","pages":"1-4"},"PeriodicalIF":0.0000,"publicationDate":"2015-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"HF-VHF-UHF IQ mixer with a single SPDT switch\",\"authors\":\"R. Campbell\",\"doi\":\"10.1109/MWSYM.2015.7166867\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"An I Q mixer topology using passive components and a single SPDT switch is described with simulations and measurements at 7 MHz and 144 MHz. A test fixture permits experiments with a variety of switch candidates. Results are presented for MOSFET switches and an SPDT switch using a hybrid coil and ring of Schottky diodes. SSB conversion loss is near 6 dB. Measured IIP3 is +16 dBm for a MOSFET switch and +6 dBm for the diodes. The Schottky version exhibits much better 2nd order performance and stability of amplitude and phase differences between I and Q ports. Results at VHF using surface mount components suggest that the Schottky diode/hybrid coil switch is a promising candidate for low power near-zero IF applications.\",\"PeriodicalId\":6493,\"journal\":{\"name\":\"2015 IEEE MTT-S International Microwave Symposium\",\"volume\":\"40 1\",\"pages\":\"1-4\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-05-17\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 IEEE MTT-S International Microwave Symposium\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MWSYM.2015.7166867\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 IEEE MTT-S International Microwave Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MWSYM.2015.7166867","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
An I Q mixer topology using passive components and a single SPDT switch is described with simulations and measurements at 7 MHz and 144 MHz. A test fixture permits experiments with a variety of switch candidates. Results are presented for MOSFET switches and an SPDT switch using a hybrid coil and ring of Schottky diodes. SSB conversion loss is near 6 dB. Measured IIP3 is +16 dBm for a MOSFET switch and +6 dBm for the diodes. The Schottky version exhibits much better 2nd order performance and stability of amplitude and phase differences between I and Q ports. Results at VHF using surface mount components suggest that the Schottky diode/hybrid coil switch is a promising candidate for low power near-zero IF applications.
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