A 9–12 GHz 5-bit active LO phase shifter with a new vector sum method
This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9–12 GHz applications. The 5-bit phase shifter is composed of four 3-bit sub phase shifters by adopting the new vector sum method, which reduces the requirements on the resolution of the variable gain amplifier（VGA）...
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| Published in | Journal of semiconductors Vol. 36; no. 1; pp. 140 - 149 |
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| Main Author | |
| Format | Journal Article |
| Language | English |
| Published |
2015
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1674-4926 |
| DOI | 10.1088/1674-4926/36/1/015002 |
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| Abstract | This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9–12 GHz applications. The 5-bit phase shifter is composed of four 3-bit sub phase shifters by adopting the new vector sum method, which reduces the requirements on the resolution of the variable gain amplifier（VGA）. The variable gain function is realized by switch on/off parallel input transistor pairs rather than changing the bias current of the VGA,which avoids the linearity variation and drain-source voltage variation existing in the quadrature vector sum active phase shifter. The 5-bit active LO phase shifter is fabricated in TSMC 0.13μm CMOS technology. The measured results show that the phase shifter achieves 5-bit phase shift accuracy. The average conversion gain for 32 phase states is 0：5 to 7 d B from 9 to 12 GHz. The RMS gain error and the RMS phase error are smaller than 0.8 d B and 4° respectively. The current consumption is 27.7 m A from a 1.2 V supply voltage. |
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| AbstractList | This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9-12 GHz applications. The 5-bit phase shifter is composed of four 3-bit sub phase shifters by adopting the new vector sum method, which reduces the requirements on the resolution of the variable gain amplifier (VGA). The variable gain function is realized by switch on/off parallel input transistor pairs rather than changing the bias current of the VGA, which avoids the linearity variation and drain-source voltage variation existing in the quadrature vector sum active phase shifter. The 5-bit active LO phase shifter is fabricated in TSMC 0.13 [mu]m CMOS technology. The measured results show that the phase shifter achieves 5-bit phase shift accuracy. The average conversion gain for 32 phase states is -0.5 to 7 dB from 9 to 12 GHz. The RMS gain error and the RMS phase error are smaller than 0.8 dB and 4[degrees] respectively. The current consumption is 27.7 mA from a 1.2 V supply voltage. This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9–12 GHz applications. The 5-bit phase shifter is composed of four 3-bit sub phase shifters by adopting the new vector sum method, which reduces the requirements on the resolution of the variable gain amplifier（VGA）. The variable gain function is realized by switch on/off parallel input transistor pairs rather than changing the bias current of the VGA,which avoids the linearity variation and drain-source voltage variation existing in the quadrature vector sum active phase shifter. The 5-bit active LO phase shifter is fabricated in TSMC 0.13μm CMOS technology. The measured results show that the phase shifter achieves 5-bit phase shift accuracy. The average conversion gain for 32 phase states is 0：5 to 7 d B from 9 to 12 GHz. The RMS gain error and the RMS phase error are smaller than 0.8 d B and 4° respectively. The current consumption is 27.7 m A from a 1.2 V supply voltage. |
| Author | 陈昌铭 李巍 李宁 任俊彦 |
| AuthorAffiliation | State Key Laboratory ofASIC ＆ System, Fudan University, Shanghai 201203, China |
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| CitedBy_id | crossref_primary_10_1587_elex_16_20190233 crossref_primary_10_3390_electronics12132862 |
| Cites_doi | 10.1109/JSSC.2008.2004861 10.1109/JSSC.2007.907225 10.1109/JSSC.2008.920347 10.1109/TMTT.2011.2156424 10.1109/82.818891 10.1007/978-94-007-0662-0 10.1109/TMTT.2013.2267749 10.1109/JSSC.2009.2017971 10.1109/TMTT.2004.841218 |
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| Notes | active phase shifter vector sum LO CMOS Chen Changming, Li Wei, Li Ning, and Ren Junyan（State Key Laboratory of ASIC ＆ System, Fudan University, Shanghai 201203, China） This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9–12 GHz applications. The 5-bit phase shifter is composed of four 3-bit sub phase shifters by adopting the new vector sum method, which reduces the requirements on the resolution of the variable gain amplifier（VGA）. The variable gain function is realized by switch on/off parallel input transistor pairs rather than changing the bias current of the VGA,which avoids the linearity variation and drain-source voltage variation existing in the quadrature vector sum active phase shifter. The 5-bit active LO phase shifter is fabricated in TSMC 0.13μm CMOS technology. The measured results show that the phase shifter achieves 5-bit phase shift accuracy. The average conversion gain for 32 phase states is 0：5 to 7 d B from 9 to 12 GHz. The RMS gain error and the RMS phase error are smaller than 0.8 d B and 4° respectively. The current consumption is 27.7 m A from a 1.2 V supply voltage. 11-5781/TN ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
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| References | 11 12 16 Khajehpour J (4) 2011 Wu L (3) 2012 Koh K J (7) 2010 Yan T C (14) 2013 1 2 Wang S H (15) 2002 5 6 Shin W (13) 2012 8 Razavi B (9) 2012 10 |
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| Snippet | This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9–12 GHz applications. The 5-bit phase shifter is composed of four 3-bit... This paper presents a 5-bit active LO phase shifter with a new vector sum method for 9-12 GHz applications. The 5-bit phase shifter is composed of four 3-bit... |
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| SubjectTerms | CMOS技术 Electric potential GHz Mathematical analysis Noise levels Phase shifters Semiconductors Variable gain Vectors (mathematics) Voltage 偏置电流 可变增益放大器 并行输入 相位误差 矢量和 移相器 |
| Title | A 9–12 GHz 5-bit active LO phase shifter with a new vector sum method |
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