W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function
This paper presents a W-band power amplifier monolithic microwave integrated circuit (MMIC) that is designed for high-precision millimeter-wave systems and fabricated using a 0.1 µm GaAs pHEMT process. The amplifier’s stability was evaluated using the network determinant function, ensuring robust pe...
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MDPI AG
2025-01-01
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| Online Access: | https://www.mdpi.com/2072-666X/16/1/81 |
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| author | Seong-Hee Han Dong-Wook Kim |
| author_facet | Seong-Hee Han Dong-Wook Kim |
| author_sort | Seong-Hee Han |
| collection | DOAJ |
| description | This paper presents a W-band power amplifier monolithic microwave integrated circuit (MMIC) that is designed for high-precision millimeter-wave systems and fabricated using a 0.1 µm GaAs pHEMT process. The amplifier’s stability was evaluated using the network determinant function, ensuring robust performance under both linear and nonlinear conditions. Simultaneous matching for gain and output power was achieved with minimal passive elements. The developed power amplifier MMIC exhibits a linear gain exceeding 20 dB and an input return loss greater than 6 dB across the 88–98 GHz range. It delivers an output power of 23.8–24.1 dBm with a power gain of 17.3–17.9 dB in the 88–97 GHz range and achieves a maximum power-added efficiency (PAE) of 24% at 94 GHz. |
| format | Article |
| id | doaj-art-291f6520f0d5434a87828947bf0e5664 |
| institution | Kabale University |
| issn | 2072-666X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj-art-291f6520f0d5434a87828947bf0e56642025-01-24T13:42:04ZengMDPI AGMicromachines2072-666X2025-01-011618110.3390/mi16010081W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant FunctionSeong-Hee Han0Dong-Wook Kim1Department of Radio and Information Communications Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of KoreaDepartment of Radio and Information Communications Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of KoreaThis paper presents a W-band power amplifier monolithic microwave integrated circuit (MMIC) that is designed for high-precision millimeter-wave systems and fabricated using a 0.1 µm GaAs pHEMT process. The amplifier’s stability was evaluated using the network determinant function, ensuring robust performance under both linear and nonlinear conditions. Simultaneous matching for gain and output power was achieved with minimal passive elements. The developed power amplifier MMIC exhibits a linear gain exceeding 20 dB and an input return loss greater than 6 dB across the 88–98 GHz range. It delivers an output power of 23.8–24.1 dBm with a power gain of 17.3–17.9 dB in the 88–97 GHz range and achieves a maximum power-added efficiency (PAE) of 24% at 94 GHz.https://www.mdpi.com/2072-666X/16/1/81GaAs pHEMTW-bandpower amplifierMMICnetwork determinant function |
| spellingShingle | Seong-Hee Han Dong-Wook Kim W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function Micromachines GaAs pHEMT W-band power amplifier MMIC network determinant function |
| title | W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function |
| title_full | W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function |
| title_fullStr | W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function |
| title_full_unstemmed | W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function |
| title_short | W-Band GaAs pHEMT Power Amplifier MMIC Stabilized Using Network Determinant Function |
| title_sort | w band gaas phemt power amplifier mmic stabilized using network determinant function |
| topic | GaAs pHEMT W-band power amplifier MMIC network determinant function |
| url | https://www.mdpi.com/2072-666X/16/1/81 |
| work_keys_str_mv | AT seongheehan wbandgaasphemtpoweramplifiermmicstabilizedusingnetworkdeterminantfunction AT dongwookkim wbandgaasphemtpoweramplifiermmicstabilizedusingnetworkdeterminantfunction |