{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,6]],"date-time":"2026-01-06T02:06:53Z","timestamp":1767665213759,"version":"3.44.0"},"reference-count":24,"publisher":"Wiley","issue":"9","license":[{"start":{"date-parts":[[2025,1,12]],"date-time":"2025-01-12T00:00:00Z","timestamp":1736640000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Circuit Theory &amp; Apps"],"published-print":{"date-parts":[[2025,9]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:p>The extended continuous inverse Class\u2010GF mode with a large available impedance space is employed in the design of the multioctave power amplifier (PA) presented in this paper. A novel miniaturized three\u2010coupled line structure is combined with the extended continuous inverse Class\u2010GF mode to achieve ultra\u2010wideband high\u2010efficiency PAs. The novel miniaturized three\u2010coupled line structure is analyzed in detail to meet the design requirements. To verify the effectiveness of the proposed method, a PA working in 0.7\u20133.0\u2009GHz with a relative bandwidth of 124.3% is designed and fabricated by using CGH40010F. Measurements demonstrate that the output power is from 39.8 to 42.3\u2009dBm, the drain efficiency is between 63.2% and 73.1%, the power added efficiency is from 60.4% to 71.3%, and the gain is from 9.7 to 12.3\u2009dB. The designed PA achieves wide bandwidth and high efficiency while effectively reducing size to facilitate integration.<\/jats:p>","DOI":"10.1002\/cta.4428","type":"journal-article","created":{"date-parts":[[2025,1,12]],"date-time":"2025-01-12T17:55:41Z","timestamp":1736704541000},"page":"5171-5179","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Design of a Broadband High\u2010Efficiency Power Amplifier Based on a Miniaturized Three\u2010Coupled Line Structure"],"prefix":"10.1002","volume":"53","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-0097-9800","authenticated-orcid":false,"given":"Luyu","family":"Zhang","sequence":"first","affiliation":[{"name":"The School of Electronics and Information Hangzhou Dianzi University  Hangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8001-9606","authenticated-orcid":false,"given":"Zhiwei","family":"Zhang","sequence":"additional","affiliation":[{"name":"The School of Electronics and Information Hangzhou Dianzi University  Hangzhou China"},{"name":"State Key Laboratory of Millimeter Waves  Nanjing China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Dengfa","family":"Zhou","sequence":"additional","affiliation":[{"name":"The School of Electronics and Information Hangzhou Dianzi University  Hangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chenlu","family":"Wang","sequence":"additional","affiliation":[{"name":"The School of Electronics and Information Hangzhou Dianzi University  Hangzhou China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chao","family":"Gu","sequence":"additional","affiliation":[{"name":"The ECIT Institute Queen's University Belfast  Belfast UK"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,1,12]]},"reference":[{"key":"e_1_2_9_2_1","doi-asserted-by":"publisher","DOI":"10.1109\/PAWR.2012.6174933"},{"key":"e_1_2_9_3_1","doi-asserted-by":"publisher","DOI":"10.1109\/PAWR.2018.8310062"},{"key":"e_1_2_9_4_1","doi-asserted-by":"publisher","DOI":"10.1109\/PAWR59907.2024.10438617"},{"key":"e_1_2_9_5_1","doi-asserted-by":"publisher","DOI":"10.1109\/EMCSIPI50001.2023.10241584"},{"key":"e_1_2_9_6_1","doi-asserted-by":"publisher","DOI":"10.1017\/S1759078709990201"},{"key":"e_1_2_9_7_1","doi-asserted-by":"publisher","DOI":"10.1017\/S1759078724000412"},{"key":"e_1_2_9_8_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCSI.2023.3241655"},{"key":"e_1_2_9_9_1","doi-asserted-by":"publisher","DOI":"10.1109\/TCSII.2022.3182169"},{"key":"e_1_2_9_10_1","doi-asserted-by":"publisher","DOI":"10.1109\/LMWC.2017.2779883"},{"key":"e_1_2_9_11_1","doi-asserted-by":"publisher","DOI":"10.1109\/PAWR.2014.6825734"},{"key":"e_1_2_9_12_1","doi-asserted-by":"publisher","DOI":"10.1109\/TMTT.2021.3065130"},{"key":"e_1_2_9_13_1","doi-asserted-by":"publisher","DOI":"10.1587\/elex.14.20170537"},{"key":"e_1_2_9_14_1","doi-asserted-by":"publisher","DOI":"10.1109\/MAPCON56011.2022.10047209"},{"key":"e_1_2_9_15_1","doi-asserted-by":"publisher","DOI":"10.1109\/ICMMT58241.2023.10276722"},{"issue":"4","key":"e_1_2_9_16_1","first-page":"182","article-title":"A Broadband Power Amplifier Using Hairpin Bandpass Filter Matching Network","volume":"56","author":"Furqan M.","year":"2019","journal-title":"Electronics Letters"},{"issue":"11","key":"e_1_2_9_17_1","first-page":"3973","article-title":"Design of an Ultra\u2010Wideband High\u2010Efficiency Power Amplifier Based on a Novel Impedance Matching Structure With Three Paths","volume":"70","author":"Xuan X.","year":"2023","journal-title":"IEEE Transactions on Circuits and Systems II: Express Briefs"},{"key":"e_1_2_9_18_1","first-page":"1","volume-title":"2013 IEEE Compound Semiconductor Integrated Circuit Symposium (CSICS)","author":"Roberg M.","year":"2013"},{"key":"e_1_2_9_19_1","doi-asserted-by":"publisher","DOI":"10.1109\/LAWP.2021.3134706"},{"key":"e_1_2_9_20_1","doi-asserted-by":"publisher","DOI":"10.1109\/TMTT.2014.2338272"},{"key":"e_1_2_9_21_1","doi-asserted-by":"publisher","DOI":"10.1109\/22.903108"},{"volume-title":"Microwave Engineering","year":"1998","author":"Pozar D. 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