{"title":"用于24GHz超宽带汽车应用的低噪声宽带SiGe混频器","authors":"I. Gresham, A. Jenkins","doi":"10.1109/RAWCON.2003.1227967","DOIUrl":null,"url":null,"abstract":"The design and measured results for a broadband, miniature active mixer for use in a direct-down conversion I/Q receiver is presented. The high instantaneous bandwidth of a short-pulse radar system requires a broadband frequency domain response. In addition, the cost constraints and thermal demands require the RF front-end of the automotive radar system to be highly integrated, and energy efficient. The mixer displays a conversion gain of over 20 dB - including the contribution of the base band output stage - over the 3 GHz-35 GHz frequency range for an IF frequency of 500 MHz and an LO drive of 0 dBm. The double-side band (DSB) noise figure of the mixer is less than 8 dB at 24 GHz. The circuit occupies less than 0.075 mm/sup 2/. The entire mixer, including biasing circuitry, requires only 22 mA from a +5 V supply.","PeriodicalId":177645,"journal":{"name":"Radio and Wireless Conference, 2003. RAWCON '03. Proceedings","volume":"14 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2003-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"15","resultStr":"{\"title\":\"A low-noise broadband SiGe mixer for 24GHz ultra-wideband automotive applications\",\"authors\":\"I. Gresham, A. Jenkins\",\"doi\":\"10.1109/RAWCON.2003.1227967\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The design and measured results for a broadband, miniature active mixer for use in a direct-down conversion I/Q receiver is presented. The high instantaneous bandwidth of a short-pulse radar system requires a broadband frequency domain response. In addition, the cost constraints and thermal demands require the RF front-end of the automotive radar system to be highly integrated, and energy efficient. The mixer displays a conversion gain of over 20 dB - including the contribution of the base band output stage - over the 3 GHz-35 GHz frequency range for an IF frequency of 500 MHz and an LO drive of 0 dBm. The double-side band (DSB) noise figure of the mixer is less than 8 dB at 24 GHz. The circuit occupies less than 0.075 mm/sup 2/. The entire mixer, including biasing circuitry, requires only 22 mA from a +5 V supply.\",\"PeriodicalId\":177645,\"journal\":{\"name\":\"Radio and Wireless Conference, 2003. RAWCON '03. Proceedings\",\"volume\":\"14 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2003-09-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"15\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Radio and Wireless Conference, 2003. RAWCON '03. Proceedings\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/RAWCON.2003.1227967\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Radio and Wireless Conference, 2003. RAWCON '03. Proceedings","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RAWCON.2003.1227967","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A low-noise broadband SiGe mixer for 24GHz ultra-wideband automotive applications
The design and measured results for a broadband, miniature active mixer for use in a direct-down conversion I/Q receiver is presented. The high instantaneous bandwidth of a short-pulse radar system requires a broadband frequency domain response. In addition, the cost constraints and thermal demands require the RF front-end of the automotive radar system to be highly integrated, and energy efficient. The mixer displays a conversion gain of over 20 dB - including the contribution of the base band output stage - over the 3 GHz-35 GHz frequency range for an IF frequency of 500 MHz and an LO drive of 0 dBm. The double-side band (DSB) noise figure of the mixer is less than 8 dB at 24 GHz. The circuit occupies less than 0.075 mm/sup 2/. The entire mixer, including biasing circuitry, requires only 22 mA from a +5 V supply.
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