{"title":"一种改进π型输出网络的Doherty功率放大器","authors":"J. Zha, Y. Luo, Q. Li, J. Liu","doi":"10.1109/MMWCST.2012.6238106","DOIUrl":null,"url":null,"abstract":"In this paper, works are focused on the impact of output network on PAE (power-added-efficiency) performance of a Doherty circuit. A shunt capacitor π-network is put forward to improve the output network of Doherty amplifier, based on the equivalent quarter wavelength transmission line. The analysis for this amplifier is presented. A Doherty circuit with applying the improved output network is designed, fabricated and tested. The device used is MRF6S21050L LDMOS. The PAE tested of the Doherty circuit gets 2% improvement in the power backoff region. When ACLR is -30dBc, the corresponding output power measured is 43.5dBm and the drain efficiency measured is 45.75%. All these measured data show very good agreements with the simulated ones.","PeriodicalId":150727,"journal":{"name":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","volume":"112 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"A Doherty power amplifier with an improved π-type output network\",\"authors\":\"J. Zha, Y. Luo, Q. Li, J. Liu\",\"doi\":\"10.1109/MMWCST.2012.6238106\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"In this paper, works are focused on the impact of output network on PAE (power-added-efficiency) performance of a Doherty circuit. A shunt capacitor π-network is put forward to improve the output network of Doherty amplifier, based on the equivalent quarter wavelength transmission line. The analysis for this amplifier is presented. A Doherty circuit with applying the improved output network is designed, fabricated and tested. The device used is MRF6S21050L LDMOS. The PAE tested of the Doherty circuit gets 2% improvement in the power backoff region. When ACLR is -30dBc, the corresponding output power measured is 43.5dBm and the drain efficiency measured is 45.75%. All these measured data show very good agreements with the simulated ones.\",\"PeriodicalId\":150727,\"journal\":{\"name\":\"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology\",\"volume\":\"112 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-04-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/MMWCST.2012.6238106\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"The 2012 International Workshop on Microwave and Millimeter Wave Circuits and System Technology","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/MMWCST.2012.6238106","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A Doherty power amplifier with an improved π-type output network
In this paper, works are focused on the impact of output network on PAE (power-added-efficiency) performance of a Doherty circuit. A shunt capacitor π-network is put forward to improve the output network of Doherty amplifier, based on the equivalent quarter wavelength transmission line. The analysis for this amplifier is presented. A Doherty circuit with applying the improved output network is designed, fabricated and tested. The device used is MRF6S21050L LDMOS. The PAE tested of the Doherty circuit gets 2% improvement in the power backoff region. When ACLR is -30dBc, the corresponding output power measured is 43.5dBm and the drain efficiency measured is 45.75%. All these measured data show very good agreements with the simulated ones.