J. Tsay, Juan José Vaquero López, J. Mayeda, T. Hall, B. T. Nukala, D. Lie
{"title":"线性度与LTE信号带宽和电源电压的关系研究,用于连续波负载-拉力的高效率SiGe功率放大器设计","authors":"J. Tsay, Juan José Vaquero López, J. Mayeda, T. Hall, B. T. Nukala, D. Lie","doi":"10.1109/WMCAS.2016.7577480","DOIUrl":null,"url":null,"abstract":"This paper shows a highly-efficient SiGe power amplifier (PA) design where its linearity, power-added efficiency (PAE) and POUT are studied vs. different LTE 16QAM signal BW and supply voltage. The monolithic PA, designed in 0.35-μm SiGe BiCMOS technology with through-silicon via (TSV) using continuous wave (CW) load-pull, passes the stringent LTE spectrum emission mask (SEM) at average linear POUT = 23.5/23.1/23.1 dBm with 48.0/45.2/45.0% PAE for LTE 5/10/20 MHz inputs. The adjacent channel leakage ratios ACLR1/ACLR2 exhibit opposite trends vs. increasing signal BW at POUT below compression (P1dB = 22.3 dBm), while past compression ACLR1/ACLR2 increase with larger BW, with some ACLR2 asymmetry at 10/20 MHz. Lowering the supply voltage has a larger effect on ACLR degradation than higher signal BW. The data suggests that static CW load-pull data is useful for PA design even for 16QAM modulated signal but cannot accurately predict SiGe PA's linearity performance.","PeriodicalId":227955,"journal":{"name":"2016 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"A study on linearity vs. LTE signal bandwidth and supply voltage for high-efficiency SiGe power amplifier design with CW load-pull\",\"authors\":\"J. Tsay, Juan José Vaquero López, J. Mayeda, T. Hall, B. T. Nukala, D. Lie\",\"doi\":\"10.1109/WMCAS.2016.7577480\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This paper shows a highly-efficient SiGe power amplifier (PA) design where its linearity, power-added efficiency (PAE) and POUT are studied vs. different LTE 16QAM signal BW and supply voltage. The monolithic PA, designed in 0.35-μm SiGe BiCMOS technology with through-silicon via (TSV) using continuous wave (CW) load-pull, passes the stringent LTE spectrum emission mask (SEM) at average linear POUT = 23.5/23.1/23.1 dBm with 48.0/45.2/45.0% PAE for LTE 5/10/20 MHz inputs. The adjacent channel leakage ratios ACLR1/ACLR2 exhibit opposite trends vs. increasing signal BW at POUT below compression (P1dB = 22.3 dBm), while past compression ACLR1/ACLR2 increase with larger BW, with some ACLR2 asymmetry at 10/20 MHz. Lowering the supply voltage has a larger effect on ACLR degradation than higher signal BW. The data suggests that static CW load-pull data is useful for PA design even for 16QAM modulated signal but cannot accurately predict SiGe PA's linearity performance.\",\"PeriodicalId\":227955,\"journal\":{\"name\":\"2016 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)\",\"volume\":\"57 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2016-03-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2016 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/WMCAS.2016.7577480\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/WMCAS.2016.7577480","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A study on linearity vs. LTE signal bandwidth and supply voltage for high-efficiency SiGe power amplifier design with CW load-pull
This paper shows a highly-efficient SiGe power amplifier (PA) design where its linearity, power-added efficiency (PAE) and POUT are studied vs. different LTE 16QAM signal BW and supply voltage. The monolithic PA, designed in 0.35-μm SiGe BiCMOS technology with through-silicon via (TSV) using continuous wave (CW) load-pull, passes the stringent LTE spectrum emission mask (SEM) at average linear POUT = 23.5/23.1/23.1 dBm with 48.0/45.2/45.0% PAE for LTE 5/10/20 MHz inputs. The adjacent channel leakage ratios ACLR1/ACLR2 exhibit opposite trends vs. increasing signal BW at POUT below compression (P1dB = 22.3 dBm), while past compression ACLR1/ACLR2 increase with larger BW, with some ACLR2 asymmetry at 10/20 MHz. Lowering the supply voltage has a larger effect on ACLR degradation than higher signal BW. The data suggests that static CW load-pull data is useful for PA design even for 16QAM modulated signal but cannot accurately predict SiGe PA's linearity performance.