K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure
Abstract In this study, a K‐band CMOS low‐noise amplifier (LNA) with a 180° phase shift function is presented to reduce the chip area of the beamforming system. The proposed LNA is composed of three stages, and the last stage is designed with a differential cascode structure for 180° phase shift fun...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2023-08-01
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| Series: | Electronics Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1049/ell2.12908 |
| _version_ | 1827867545279922176 |
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| author | Seongjin Jang Jaeyong Lee Changkun Park |
| author_facet | Seongjin Jang Jaeyong Lee Changkun Park |
| author_sort | Seongjin Jang |
| collection | DOAJ |
| description | Abstract In this study, a K‐band CMOS low‐noise amplifier (LNA) with a 180° phase shift function is presented to reduce the chip area of the beamforming system. The proposed LNA is composed of three stages, and the last stage is designed with a differential cascode structure for 180° phase shift function. The 180° phase shift function was implemented by dividing one cascode transistor into two transistors. As a result, it is possible to equip the 180° phase shift function without an additional chip area. The LNA was designed with a 65‐nm CMOS process to verify the feasibility of the proposed technique. The core size was 0.66 × 0.41 mm2. The measured phase difference between 0° and 180° phase shift modes was approximately 178° in the operating frequency of 22.0 GHz. The measured noise figure and gain were 3.8 and 12.7 dB, respectively. |
| first_indexed | 2024-03-12T15:19:00Z |
| format | Article |
| id | doaj.art-86b41cfd84c142cfac45c6441de8cf84 |
| institution | Directory Open Access Journal |
| issn | 0013-5194 1350-911X |
| language | English |
| last_indexed | 2024-03-12T15:19:00Z |
| publishDate | 2023-08-01 |
| publisher | Wiley |
| record_format | Article |
| series | Electronics Letters |
| spelling | doaj.art-86b41cfd84c142cfac45c6441de8cf842023-08-11T07:18:29ZengWileyElectronics Letters0013-51941350-911X2023-08-015915n/an/a10.1049/ell2.12908K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structureSeongjin Jang0Jaeyong Lee1Changkun Park2Department of Electronic Engineering Soongsil University SeoulRepublic of KoreaDepartment of Electronic Engineering Soongsil University SeoulRepublic of KoreaDepartment of Electronic Engineering Soongsil University SeoulRepublic of KoreaAbstract In this study, a K‐band CMOS low‐noise amplifier (LNA) with a 180° phase shift function is presented to reduce the chip area of the beamforming system. The proposed LNA is composed of three stages, and the last stage is designed with a differential cascode structure for 180° phase shift function. The 180° phase shift function was implemented by dividing one cascode transistor into two transistors. As a result, it is possible to equip the 180° phase shift function without an additional chip area. The LNA was designed with a 65‐nm CMOS process to verify the feasibility of the proposed technique. The core size was 0.66 × 0.41 mm2. The measured phase difference between 0° and 180° phase shift modes was approximately 178° in the operating frequency of 22.0 GHz. The measured noise figure and gain were 3.8 and 12.7 dB, respectively.https://doi.org/10.1049/ell2.12908microwave amplifiersmicrowave circuitsmicrowave phase shiftersmicrowave power amplifiersmicrowave switches |
| spellingShingle | Seongjin Jang Jaeyong Lee Changkun Park K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure Electronics Letters microwave amplifiers microwave circuits microwave phase shifters microwave power amplifiers microwave switches |
| title | K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure |
| title_full | K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure |
| title_fullStr | K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure |
| title_full_unstemmed | K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure |
| title_short | K‐band CMOS low‐noise amplifier with 180° phase shift function using cascode structure |
| title_sort | k band cmos low noise amplifier with 180° phase shift function using cascode structure |
| topic | microwave amplifiers microwave circuits microwave phase shifters microwave power amplifiers microwave switches |
| url | https://doi.org/10.1049/ell2.12908 |
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