A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration
This article presents a transmitter (TX) front-end operating at frequencies covering 40–50 GHz, including a differential quadrature mixer with integrated amplitude and phase imbalance tuning, a power amplifier, and a detection mixer (DM) that supports local oscillator (LO) leakage signal or image si...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2023-11-01
|
| Series: | Micromachines |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2072-666X/14/11/2105 |
| _version_ | 1797458387673284608 |
|---|---|
| author | Peigen Zhou Pinpin Yan Jixin Chen Zhe Chen Wei Hong |
| author_facet | Peigen Zhou Pinpin Yan Jixin Chen Zhe Chen Wei Hong |
| author_sort | Peigen Zhou |
| collection | DOAJ |
| description | This article presents a transmitter (TX) front-end operating at frequencies covering 40–50 GHz, including a differential quadrature mixer with integrated amplitude and phase imbalance tuning, a power amplifier, and a detection mixer (DM) that supports local oscillator (LO) leakage signal or image signal calibration. Benefiting from the amplitude and phase imbalance tuning network of the in-phase quadrature (IQ) signal generator at the LO input, the TX exhibits more than 30 dBc image signal rejection over the full frequency band without any post-calibration. Based on the LO leakage signal fed back by the DM integrated at the RF output, the LO leakage of the TX has been improved by more than 10 dB through the LO leakage calibration module integrated in the quadrature mixer. When the intermediate frequency (IF) signal is fixed at 1 GHz, the TX’s 1 dB compressed output power (OP1 dB) is higher than 13.5 dBm over the operating band. Thanks to the LO leakage signal calibration unit and the IQ signal generator, the TX is compliant with the error vector magnitude (EVM) requirement of the IEEE 802.11aj standard up to the 64-quadrature amplitude modulation (QAM) operating mode. |
| first_indexed | 2024-03-09T16:36:23Z |
| format | Article |
| id | doaj.art-945ac44ee1f54aa88365326307f29b96 |
| institution | Directory Open Access Journal |
| issn | 2072-666X |
| language | English |
| last_indexed | 2024-03-09T16:36:23Z |
| publishDate | 2023-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Micromachines |
| spelling | doaj.art-945ac44ee1f54aa88365326307f29b962023-11-24T14:56:34ZengMDPI AGMicromachines2072-666X2023-11-011411210510.3390/mi14112105A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage CalibrationPeigen Zhou0Pinpin Yan1Jixin Chen2Zhe Chen3Wei Hong4State Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaState Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaState Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaState Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaState Key Laboratory of Millimeter Waves, School of Information Science and Engineering, Southeast University, Nanjing 210096, ChinaThis article presents a transmitter (TX) front-end operating at frequencies covering 40–50 GHz, including a differential quadrature mixer with integrated amplitude and phase imbalance tuning, a power amplifier, and a detection mixer (DM) that supports local oscillator (LO) leakage signal or image signal calibration. Benefiting from the amplitude and phase imbalance tuning network of the in-phase quadrature (IQ) signal generator at the LO input, the TX exhibits more than 30 dBc image signal rejection over the full frequency band without any post-calibration. Based on the LO leakage signal fed back by the DM integrated at the RF output, the LO leakage of the TX has been improved by more than 10 dB through the LO leakage calibration module integrated in the quadrature mixer. When the intermediate frequency (IF) signal is fixed at 1 GHz, the TX’s 1 dB compressed output power (OP1 dB) is higher than 13.5 dBm over the operating band. Thanks to the LO leakage signal calibration unit and the IQ signal generator, the TX is compliant with the error vector magnitude (EVM) requirement of the IEEE 802.11aj standard up to the 64-quadrature amplitude modulation (QAM) operating mode.https://www.mdpi.com/2072-666X/14/11/2105detection mixerfront-endLO leakage calibrationSiGeTX |
| spellingShingle | Peigen Zhou Pinpin Yan Jixin Chen Zhe Chen Wei Hong A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration Micromachines detection mixer front-end LO leakage calibration SiGe TX |
| title | A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration |
| title_full | A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration |
| title_fullStr | A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration |
| title_full_unstemmed | A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration |
| title_short | A 40–50 GHz RF Front-End with Integrated Local Oscillator Leakage Calibration |
| title_sort | 40 50 ghz rf front end with integrated local oscillator leakage calibration |
| topic | detection mixer front-end LO leakage calibration SiGe TX |
| url | https://www.mdpi.com/2072-666X/14/11/2105 |
| work_keys_str_mv | AT peigenzhou a4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT pinpinyan a4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT jixinchen a4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT zhechen a4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT weihong a4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT peigenzhou 4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT pinpinyan 4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT jixinchen 4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT zhechen 4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration AT weihong 4050ghzrffrontendwithintegratedlocaloscillatorleakagecalibration |