A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications
A 24-GHz direct-conversion transmitter is proposed for in-cabin radar applications. The proposed RF transmitter consists of an <i>I</i>/<i>Q</i> up-conversion mixer, an <i>I</i>/<i>Q</i> local (LO) oscillator generator, and a power amplifier. To improv...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Electronics |
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| Online Access: | https://www.mdpi.com/2079-9292/9/12/2005 |
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| author | Suyeon Lee Yangji Jeon Geonwoo Park Jinman Myung Seungjik Lee Ockgoo Lee Hyunwon Moon Ilku Nam |
| author_facet | Suyeon Lee Yangji Jeon Geonwoo Park Jinman Myung Seungjik Lee Ockgoo Lee Hyunwon Moon Ilku Nam |
| author_sort | Suyeon Lee |
| collection | DOAJ |
| description | A 24-GHz direct-conversion transmitter is proposed for in-cabin radar applications. The proposed RF transmitter consists of an <i>I</i>/<i>Q</i> up-conversion mixer, an <i>I</i>/<i>Q</i> local (LO) oscillator generator, and a power amplifier. To improve the linearity of the <i>I</i>/<i>Q</i> up-conversion mixer, an inverter transconductor with third-order intermodulation (IM3) distortion cancellation is proposed. To improve the <i>I</i>/<i>Q</i> balancing performance of the <i>I</i>/<i>Q</i> LO generator, a poly-phase filter, including parasitic line inductance, is proposed. By employing a highly linear <i>I</i>/<i>Q</i> up-conversion mixer and a balanced <i>I</i>/<i>Q</i> LO generator, the 24-GHz direct-conversion transmitter achieves high linearity and <i>I</i>/<i>Q</i> balancing characteristics. It is fabricated in a 65-nm CMOS process and consumes 150 mW. It shows an OP1dB of 8.6 dBm, an LO leakage of −48 dBc, and an image rejection ratio of −49 dBc for the entire operating band from 24 GHz to 24.5 GHz. |
| first_indexed | 2024-03-10T14:34:09Z |
| format | Article |
| id | doaj.art-90ea44c6102d48cba597f4822e2e00e2 |
| institution | Directory Open Access Journal |
| issn | 2079-9292 |
| language | English |
| last_indexed | 2024-03-10T14:34:09Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Electronics |
| spelling | doaj.art-90ea44c6102d48cba597f4822e2e00e22023-11-20T22:22:18ZengMDPI AGElectronics2079-92922020-11-01912200510.3390/electronics9122005A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar ApplicationsSuyeon Lee0Yangji Jeon1Geonwoo Park2Jinman Myung3Seungjik Lee4Ockgoo Lee5Hyunwon Moon6Ilku Nam7Department of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaDepartment of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaDepartment of Electronic Engineering, Daegu University, Gyeongsan 38453, KoreaDepartment of Electrical Engineering, Pusan National Univerisity, Busan 46241, KoreaA 24-GHz direct-conversion transmitter is proposed for in-cabin radar applications. The proposed RF transmitter consists of an <i>I</i>/<i>Q</i> up-conversion mixer, an <i>I</i>/<i>Q</i> local (LO) oscillator generator, and a power amplifier. To improve the linearity of the <i>I</i>/<i>Q</i> up-conversion mixer, an inverter transconductor with third-order intermodulation (IM3) distortion cancellation is proposed. To improve the <i>I</i>/<i>Q</i> balancing performance of the <i>I</i>/<i>Q</i> LO generator, a poly-phase filter, including parasitic line inductance, is proposed. By employing a highly linear <i>I</i>/<i>Q</i> up-conversion mixer and a balanced <i>I</i>/<i>Q</i> LO generator, the 24-GHz direct-conversion transmitter achieves high linearity and <i>I</i>/<i>Q</i> balancing characteristics. It is fabricated in a 65-nm CMOS process and consumes 150 mW. It shows an OP1dB of 8.6 dBm, an LO leakage of −48 dBc, and an image rejection ratio of −49 dBc for the entire operating band from 24 GHz to 24.5 GHz.https://www.mdpi.com/2079-9292/9/12/2005CMOSin-cabinmm-waveradartransmitter |
| spellingShingle | Suyeon Lee Yangji Jeon Geonwoo Park Jinman Myung Seungjik Lee Ockgoo Lee Hyunwon Moon Ilku Nam A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications Electronics CMOS in-cabin mm-wave radar transmitter |
| title | A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications |
| title_full | A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications |
| title_fullStr | A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications |
| title_full_unstemmed | A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications |
| title_short | A 24-GHz RF Transmitter in 65-nm CMOS for In-Cabin Radar Applications |
| title_sort | 24 ghz rf transmitter in 65 nm cmos for in cabin radar applications |
| topic | CMOS in-cabin mm-wave radar transmitter |
| url | https://www.mdpi.com/2079-9292/9/12/2005 |
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