{"title":"A highly-linear highly efficient HBT for communications circuits","authors":"R.S. Brozovich, D. Helms, L.W. Yang, J. Komiak","doi":"10.1109/GAAS.1994.636986","DOIUrl":null,"url":null,"abstract":"A Martin Marietta Laboratory heterojunction bipolar transistor, which was fabricated using a base-emitter realigned process to reduce surface recombination, has been load pulled to demonstrate that it is simultaneously highly linear and efficient. Achieving a breakthrough in highly linear C-band communications power amplification, the HBT demonstrated a linearity of 30 dB C/I, typically required by communications systems, with 61% power added efficiency at 6 GHz. When tuned for maximum efficiency it achieved 72% P.A.E.","PeriodicalId":328819,"journal":{"name":"Proceedings of 1994 IEEE GaAs IC Symposium","volume":"74 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1994-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of 1994 IEEE GaAs IC Symposium","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/GAAS.1994.636986","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
A Martin Marietta Laboratory heterojunction bipolar transistor, which was fabricated using a base-emitter realigned process to reduce surface recombination, has been load pulled to demonstrate that it is simultaneously highly linear and efficient. Achieving a breakthrough in highly linear C-band communications power amplification, the HBT demonstrated a linearity of 30 dB C/I, typically required by communications systems, with 61% power added efficiency at 6 GHz. When tuned for maximum efficiency it achieved 72% P.A.E.
Martin Marietta实验室的一种异质结双极晶体管，采用基极-发射极重新排列工艺来减少表面复合，已被负载拉出，以证明它同时具有高度线性和高效率。在高线性C波段通信功率放大方面取得了突破，HBT展示了30 dB C/I的线性度，这是通信系统通常需要的，在6 GHz时功率增加效率为61%。当调整到最高效率时，它达到了72%的P.A.E.
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