A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique
This paper presents a 6-bit vector-sum phase shifter with half-quadrant control technique for Ku-band phased arrays. In this paper, the gain and phase symmetry in each quadrant is studied. Based on the gain and phase symmetry in vector-sum phase shifter, the half-quadrant control technique is propos...
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2020-01-01
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| Online Access: | https://ieeexplore.ieee.org/document/8957460/ |
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| author | Tianjun Wu Xiaoning Zhang Zhao Xing Yunqiu Wu Huihua Liu Chenxi Zhao Yiming Yu Kai Kang |
| author_facet | Tianjun Wu Xiaoning Zhang Zhao Xing Yunqiu Wu Huihua Liu Chenxi Zhao Yiming Yu Kai Kang |
| author_sort | Tianjun Wu |
| collection | DOAJ |
| description | This paper presents a 6-bit vector-sum phase shifter with half-quadrant control technique for Ku-band phased arrays. In this paper, the gain and phase symmetry in each quadrant is studied. Based on the gain and phase symmetry in vector-sum phase shifter, the half-quadrant control technique is proposed to simplify the complexity of phase control, phase measurement and phase calibration for large-scale phased arrays. Besides, a phase optimization method without extra phase settings is proposed to achieve low phase error. As results, the measured 6-bit RMS phase error is 1.6° ~ 2.3° across 13 ~ 17 GHz with only 64 different phase states, demonstrating the brevity and accuracy of phase control simultaneously. With the same phase optimization, six chips are measured and the maximum deviation of RMS phase error is < 0.3°. The measured peak gain is 3.8 dB at 14.5 GHz, and the measured 3-dB frequency band is 13.4 ~ 15.5 GHz. The measured RMS gain variation is 0.85 ~1 dB across 3-dB frequency band. The input-referred P1dB is > −11.4 dBm. The chip consumes 29.7 mW with 1.8 V supply and occupies <inline-formula> <tex-math notation="LaTeX">$0.9\times1.45$ </tex-math></inline-formula> mm<sup>2</sup>. This work is fabricated in TSMC 180-nm CMOS technology. |
| format | Article |
| id | doaj-art-2db97a7a2a8543728c6b77dc7169a707 |
| institution | DOAJ |
| issn | 2169-3536 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | IEEE |
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| spelling | doaj-art-2db97a7a2a8543728c6b77dc7169a7072025-08-20T03:01:19ZengIEEEIEEE Access2169-35362020-01-018293112931810.1109/ACCESS.2020.29662778957460A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control TechniqueTianjun Wu0https://orcid.org/0000-0003-2147-1410Xiaoning Zhang1https://orcid.org/0000-0001-9580-1967Zhao Xing2https://orcid.org/0000-0001-5146-8998Yunqiu Wu3https://orcid.org/0000-0001-6856-7431Huihua Liu4https://orcid.org/0000-0002-9146-7620Chenxi Zhao5https://orcid.org/0000-0001-7166-2755Yiming Yu6https://orcid.org/0000-0003-0616-2994Kai Kang7https://orcid.org/0000-0002-8878-2080School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaSchool of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, ChinaThis paper presents a 6-bit vector-sum phase shifter with half-quadrant control technique for Ku-band phased arrays. In this paper, the gain and phase symmetry in each quadrant is studied. Based on the gain and phase symmetry in vector-sum phase shifter, the half-quadrant control technique is proposed to simplify the complexity of phase control, phase measurement and phase calibration for large-scale phased arrays. Besides, a phase optimization method without extra phase settings is proposed to achieve low phase error. As results, the measured 6-bit RMS phase error is 1.6° ~ 2.3° across 13 ~ 17 GHz with only 64 different phase states, demonstrating the brevity and accuracy of phase control simultaneously. With the same phase optimization, six chips are measured and the maximum deviation of RMS phase error is < 0.3°. The measured peak gain is 3.8 dB at 14.5 GHz, and the measured 3-dB frequency band is 13.4 ~ 15.5 GHz. The measured RMS gain variation is 0.85 ~1 dB across 3-dB frequency band. The input-referred P1dB is > −11.4 dBm. The chip consumes 29.7 mW with 1.8 V supply and occupies <inline-formula> <tex-math notation="LaTeX">$0.9\times1.45$ </tex-math></inline-formula> mm<sup>2</sup>. This work is fabricated in TSMC 180-nm CMOS technology.https://ieeexplore.ieee.org/document/8957460/Half-quadrant control techniquegain and phase symmetryvector-sum phase shifter |
| spellingShingle | Tianjun Wu Xiaoning Zhang Zhao Xing Yunqiu Wu Huihua Liu Chenxi Zhao Yiming Yu Kai Kang A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique IEEE Access Half-quadrant control technique gain and phase symmetry vector-sum phase shifter |
| title | A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique |
| title_full | A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique |
| title_fullStr | A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique |
| title_full_unstemmed | A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique |
| title_short | A Ku-Band 6-Bit Vector-Sum Phase Shifter With Half-Quadrant Control Technique |
| title_sort | ku band 6 bit vector sum phase shifter with half quadrant control technique |
| topic | Half-quadrant control technique gain and phase symmetry vector-sum phase shifter |
| url | https://ieeexplore.ieee.org/document/8957460/ |
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