Pub Date : 2023-01-01DOI: 10.1587/elex.20.20230055
Kentaro Takeda
{"title":"Analysis of Pattern Generation in Non-periodic Clock-driven Unidirectionally Coupled Phase Oscillators in a Ring","authors":"Kentaro Takeda","doi":"10.1587/elex.20.20230055","DOIUrl":"https://doi.org/10.1587/elex.20.20230055","url":null,"abstract":"","PeriodicalId":50387,"journal":{"name":"Ieice Electronics Express","volume":"1 1","pages":"20230055"},"PeriodicalIF":0.8,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67301258","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
In this paper, a 4.5-5.5 GHz wideband high efficiency Doherty power amplifier (DPA) MMIC using a novel compensation technique is proposed. The phase difference and output capacitances of the carrier and peaking PA are analyzed and compensated accurately in a wideband. Thus a sufficient load modulation of the DPA is obtained in a broadband. To verify the proposed design methodology, a broadband high-efficiency DPA MMIC is designed and fabricated in a 0.25 µm GaN-HEMT process for 5G massive MIMO applications. The measurement results illustrate that power added efficiency (PAE) is 44.8%-52.2% at the saturated output power (Psat) of 39.8-40.8 dBm, the PAE at 6-dB output back-off (OBO) is 40.9%-43.9%, and the small-signal gain is 12.5-13.9dB. The proposed DPA demonstrates state-of-the-art saturated and 6-dB back-off PAE among published C-band broadband GaN MMIC DPAs.
{"title":"A fully integrated wideband GaN Doherty power amplifier MMIC with high efficiency for 5G massive MIMO application","authors":"Yanchen Guo, Lin Yang, Jia Liu, Tongtong Cao, Chengyu Yan, Jing Zhang, Ruihong Wu, Jing Zhang","doi":"10.1587/elex.20.20230456","DOIUrl":"https://doi.org/10.1587/elex.20.20230456","url":null,"abstract":"In this paper, a 4.5-5.5 GHz wideband high efficiency Doherty power amplifier (DPA) MMIC using a novel compensation technique is proposed. The phase difference and output capacitances of the carrier and peaking PA are analyzed and compensated accurately in a wideband. Thus a sufficient load modulation of the DPA is obtained in a broadband. To verify the proposed design methodology, a broadband high-efficiency DPA MMIC is designed and fabricated in a 0.25 µm GaN-HEMT process for 5G massive MIMO applications. The measurement results illustrate that power added efficiency (PAE) is 44.8%-52.2% at the saturated output power (Psat) of 39.8-40.8 dBm, the PAE at 6-dB output back-off (OBO) is 40.9%-43.9%, and the small-signal gain is 12.5-13.9dB. The proposed DPA demonstrates state-of-the-art saturated and 6-dB back-off PAE among published C-band broadband GaN MMIC DPAs.","PeriodicalId":50387,"journal":{"name":"Ieice Electronics Express","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135560180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：