802.11ah Transmitter with −55dBr at $\pm 3\text{MHz}$ and −58dBr at $\pm 20\text{MHz}$ ACLR and 60dB 2nd-order Harmonic Rejection for 470MHz ~ 790MHz TV White Space Band Devices

2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC) Pub Date : 2022-06-19 DOI:10.1109/RFIC54546.2022.9863125

S. Myoung, Jonghoon Park, Chang Hun Song, Ryun Woo Kim, Jaeyoung Ryu, Jeongki Choi, Hoai-Nam Nguyen, Seungyun Lee, Ilyong Jung, J. Lim, Sok Kyu Lee

{"title":"802.11ah Transmitter with −55dBr at $\\pm 3\\text{MHz}$ and −58dBr at $\\pm 20\\text{MHz}$ ACLR and 60dB 2nd-order Harmonic Rejection for 470MHz ~ 790MHz TV White Space Band Devices","authors":"S. Myoung, Jonghoon Park, Chang Hun Song, Ryun Woo Kim, Jaeyoung Ryu, Jeongki Choi, Hoai-Nam Nguyen, Seungyun Lee, Ilyong Jung, J. Lim, Sok Kyu Lee","doi":"10.1109/RFIC54546.2022.9863125","DOIUrl":null,"url":null,"abstract":"A novel 802.11ah transmitter for TV white space (TVWS) band devices is presented. To realize the transmitter meeting the stringent FCC and ETSI TVWS device emission limits for the adjacent channels and FCC restricted bands, a low noise and high linear class- AB voltage- to-current converter (V2I) as the mixer driver and a 2nd -order harmonic notch filter with the frequency tracking capability on the power amplifier (PA) load are newly proposed. The designed transmitter is implemented in a 40nm CMOS process as a part of the TVWS band 802.11ah connectivity System-on-Chip (SoC), and the measured results with the 802.11ah CBW4 signal show −55dBr and −58dBr Adjacent Channel Leakage Ratio (ACLR) at $\\pm 3\\mathbf{MHz}$ and $\\pm 20\\mathbf{MHz}$ frequency offset, respectively, and 60dB 2nd harmonic rejection for 470MHz ~ 790MHz TVWS bands. This transmitter is the first SoC level transmitter meeting the FCC and ETSI ACLR requirements.","PeriodicalId":415294,"journal":{"name":"2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2022-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/RFIC54546.2022.9863125","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}

引用次数: 0

Abstract

A novel 802.11ah transmitter for TV white space (TVWS) band devices is presented. To realize the transmitter meeting the stringent FCC and ETSI TVWS device emission limits for the adjacent channels and FCC restricted bands, a low noise and high linear class- AB voltage- to-current converter (V2I) as the mixer driver and a 2nd -order harmonic notch filter with the frequency tracking capability on the power amplifier (PA) load are newly proposed. The designed transmitter is implemented in a 40nm CMOS process as a part of the TVWS band 802.11ah connectivity System-on-Chip (SoC), and the measured results with the 802.11ah CBW4 signal show −55dBr and −58dBr Adjacent Channel Leakage Ratio (ACLR) at $\pm 3\mathbf{MHz}$ and $\pm 20\mathbf{MHz}$ frequency offset, respectively, and 60dB 2nd harmonic rejection for 470MHz ~ 790MHz TVWS bands. This transmitter is the first SoC level transmitter meeting the FCC and ETSI ACLR requirements.

查看原文本刊更多论文

802.11ah发射机，在$\pm 3\text{MHz}$时- 55dBr，在$\pm 20\text{MHz}$时- 58dBr, ACLR和60dB二阶谐波抑制，适用于470MHz ~ 790MHz电视白频段设备

提出了一种用于电视白色空间(TVWS)频段设备的新型802.11ah发射机。为了使发射机在相邻信道和FCC限制频带满足严格的FCC和ETSI TVWS器件发射限制，提出了一种低噪声高线性AB级电压电流变换器(V2I)作为混频器驱动器，并在功率放大器(PA)负载上设计了一种具有频率跟踪能力的二阶谐波陷波滤波器。设计的发射机在40nm CMOS工艺中实现，作为TVWS频段802.11ah连接片上系统(SoC)的一部分，使用802.11ah CBW4信号的测量结果显示，在$\pm 3\mathbf{MHz}$和$\pm 20\mathbf{MHz}$频率偏移时，相邻信道泄漏比(ACLR)分别为- 55dBr和- 58dBr，在470MHz ~ 790MHz的TVWS频段，二次谐波抑制率为60dB。该发射机是第一个SoC级发射机，满足FCC和ETSI ACLR要求。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

2022 IEEE Radio Frequency Integrated Circuits Symposium (RFIC)

自引率

0.00%

发文量