用于具有高二阶和三阶截距点的直接转换接收机的正交下变频器

Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474) Pub Date : 2000-03-15 DOI:10.1109/ICCDCS.2000.869802

B. Bastani, E. Bautista, G. Nagaraj, J. Heck

{"title":"用于具有高二阶和三阶截距点的直接转换接收机的正交下变频器","authors":"B. Bastani, E. Bautista, G. Nagaraj, J. Heck","doi":"10.1109/ICCDCS.2000.869802","DOIUrl":null,"url":null,"abstract":"This paper describes an I and Q down converter designed for a 800 MHz direct conversion receiver. The down converter employs a bipolar Gilbert cell mixer with degenerated common base input stage that achieves greater than +62 dBm 2nd order input intercept point (IIP2) and +6 dBm 3rd order input intercept point (IIP3) with 4.6 mA at 2.5 Volt. The use of a fully balanced, fully differential topology and divide-by-two quadrature generator has improved the LO to RF signal isolation to better than 85 dB.","PeriodicalId":301003,"journal":{"name":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"5","resultStr":"{\"title\":\"A quadrature down converter for direct conversion receivers with high 2nd and 3rd order intercept points\",\"authors\":\"B. Bastani, E. Bautista, G. Nagaraj, J. Heck\",\"doi\":\"10.1109/ICCDCS.2000.869802\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper describes an I and Q down converter designed for a 800 MHz direct conversion receiver. The down converter employs a bipolar Gilbert cell mixer with degenerated common base input stage that achieves greater than +62 dBm 2nd order input intercept point (IIP2) and +6 dBm 3rd order input intercept point (IIP3) with 4.6 mA at 2.5 Volt. The use of a fully balanced, fully differential topology and divide-by-two quadrature generator has improved the LO to RF signal isolation to better than 85 dB.\",\"PeriodicalId\":301003,\"journal\":{\"name\":\"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)\",\"volume\":\"41 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-03-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"5\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICCDCS.2000.869802\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICCDCS.2000.869802","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 5

摘要

本文介绍了一种用于800mhz直接转换接收机的I、Q下变频设计。下变频器采用双极吉尔伯特单元混频器，具有退化的共基极输入级，在2.5伏4.6 mA时实现大于+62 dBm的二阶输入截距点(IIP2)和+6 dBm的三阶输入截距点(IIP3)。采用全平衡、全差分拓扑和二分正交发生器，将LO - RF信号隔离度提高到85 dB以上。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

A quadrature down converter for direct conversion receivers with high 2nd and 3rd order intercept points

This paper describes an I and Q down converter designed for a 800 MHz direct conversion receiver. The down converter employs a bipolar Gilbert cell mixer with degenerated common base input stage that achieves greater than +62 dBm 2nd order input intercept point (IIP2) and +6 dBm 3rd order input intercept point (IIP3) with 4.6 mA at 2.5 Volt. The use of a fully balanced, fully differential topology and divide-by-two quadrature generator has improved the LO to RF signal isolation to better than 85 dB.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Proceedings of the 2000 Third IEEE International Caracas Conference on Devices, Circuits and Systems (Cat. No.00TH8474)

自引率

0.00%

发文量