PMID- 36557378 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20221226 IS - 2072-666X (Print) IS - 2072-666X (Electronic) IS - 2072-666X (Linking) VI - 13 IP - 12 DP - 2022 Nov 26 TI - C-Band 30 W High PAE Power Amplifier MMIC with Second Harmonic Suppression for Radar Network Application. LID - 10.3390/mi13122079 [doi] LID - 2079 AB - In order to meet the application requirements of radar networks for high efficiency and high second harmonic suppression (SHS) of power amplifiers, this paper proposes a C-band 30 W power amplifier (PA) microwave monolithic integrated circuit (MMIC) based on 0.25 mum gallium nitride (GaN) high electron mobility transistor (HEMT) process. The proposed PA uses a two-stage amplifier structure to achieve high power gain. A topology with SHS is designed in the output-matching network. Besides, the large signal model load pull simulation and the harmonic control technology in the output stage are used to improve efficiency. The high-power additional efficiency (PAE) and high SHS of the PA MMIC are achieved simultaneously. In the 5-6 GHz frequency range, multiple indicator measurements of the proposed PA show that output power is over 45 dBm, the PAE is more than 57%, the SHS exceeds 45 dBc, the power gain is greater than 24 dB, which are conducted under the condition of 100 mus pulse width and 10% duty cycle. In addition, the size of the PA MMIC, including bonding pads, is 3.3 x 3.1 mm(2). FAU - Yang, Fan AU - Yang F AUID- ORCID: 0000-0002-1430-457X AD - School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China. AD - Microwave Technology Research and Development Center, Beijing Institute of Radio Measurement, Beijing 100854, China. FAU - Song, Leijun AU - Song L AUID- ORCID: 0000-0001-8709-3120 AD - Microwave Technology Research and Development Center, Beijing Institute of Radio Measurement, Beijing 100854, China. FAU - Xu, Yuehang AU - Xu Y AUID- ORCID: 0000-0003-1706-2681 AD - School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China. LA - eng GR - 61922021/National Natural Science Foundation of China/ PT - Journal Article DEP - 20221126 PL - Switzerland TA - Micromachines (Basel) JT - Micromachines JID - 101640903 PMC - PMC9782156 OTO - NOTNLM OT - additional power efficiency (PAE) OT - microwave monolithic integrated circuit (MMIC) OT - power amplifier (PA) OT - radar network OT - second harmonic suppression (SHS) COIS- The authors declare no conflict of interest. The funders had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript; or in the decision to publish the results. EDAT- 2022/12/24 06:00 MHDA- 2022/12/24 06:01 PMCR- 2022/11/26 CRDT- 2022/12/23 01:46 PHST- 2022/11/08 00:00 [received] PHST- 2022/11/20 00:00 [revised] PHST- 2022/11/25 00:00 [accepted] PHST- 2022/12/23 01:46 [entrez] PHST- 2022/12/24 06:00 [pubmed] PHST- 2022/12/24 06:01 [medline] PHST- 2022/11/26 00:00 [pmc-release] AID - mi13122079 [pii] AID - micromachines-13-02079 [pii] AID - 10.3390/mi13122079 [doi] PST - epublish SO - Micromachines (Basel). 2022 Nov 26;13(12):2079. doi: 10.3390/mi13122079.