Journal of Guangxi Normal University(Natural Science Edition) ›› 2024, Vol. 42 ›› Issue (5): 52-60.doi: 10.16088/j.issn.1001-6600.2023101304

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Differential Passive N-path Filter Based on Switched Capacitors

LIU Changping1,2,3, SONG Shuxiang1,2,3*, JIANG Pinqun1,2,3, CEN Mingcan1,2,3   

  1. 1. School of Electronics and Information Engineering/School of Integrated Circuits, Guangxi Normal University, Guilin Guangxi 541004, China;
    2. Key Laboratory of Integrated Circuits and Microsystems(Guangxi Normal University), Education Department of Guangxi Zhuang Autonomous Region, Guilin Guangxi 541004, China;
    3. Guangxi Key Laboratory of Brain-inspired Computing and Intelligent Chips(Guangxi Normal University), Guilin Guangxi 541004, China
  • Received:2023-10-13 Revised:2023-12-04 Online:2024-09-25 Published:2024-10-11

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Abstract: A differential passive N-path filter based on switching capacitors is designed to address the issue that traditional N-path filters are unable to suppress harmonics and harmonic aliasing,and have certain insertion losses. This filter eliminates odd harmonics by using capacitance weighted multiphase signals with different capacitance values,suppresses harmonic aliasing by combining different clock signals,and uses capacitance stacking technology to provide certain gain and reduce insertion loss. The filter adopts TSMC 40 nm CMOS process,and the simulation results show that the center frequency fs of the filter can be adjusted from 0.3-1.5 GHz,and the rejection effect of fs=500 MHz is more than 48 dB for the 3rd and 5th harmonics,and the suppression of the most powerful harmonic folding reaches more than 60 dB,and there is no insertion loss,the noise figure (NF) is 2.5-2.8 dB,and the linearity (IIP3) is above 15 dBm.

Key words: N-path filter, harmonic rejection, harmonic folding, passive, differential structure

CLC Number:  TN713
[1] 武康康,朱旭飞,陆叶,等.基于最小二乘法的LS-FIR滤波器[J].广西师范大学学报(自然科学版),2021,39(5):89-99. DOI: 10.16088/j.issn.1001-6600.2020072503.
[2] 袁伟强,宋树祥,程洋,等.超宽带微带带通滤波器的设计[J].广西师范大学学报(自然科学版),2017,35(4):32-38. DOI: 10.16088/j.issn.1001-6600.2017.04.005.
[3] 刘国伦,宋树祥,岑明灿,等.带宽可调带阻滤波器的设计[J].广西师范大学学报(自然科学版),2018,36(3):1-8. DOI: 10.16088/j.issn.1001-6600.2018.03.001.
[4] SOER M C M, KLUMPERINK E A M, de BOER P T, et al. Unified frequency-domain analysis of switched-series-RC passive mixers and samplers[J]. IEEE Transactions on Circuits and Systems I:Regular Papers, 2010, 57(10): 2618-2631. DOI: 10.1109/TCSI.2010.2046968.
[5] KLUMPERINK E A M, WESTERVELD H J, NAUTA B. N-path filters and mixer-first receivers: a review[C] // 2017 IEEE Custom Integrated Circuits Conference(CICC). Piscataway, NJ: IEEE Press, 2017: 1-8. DOI: 10.1109/CICC.2017.7993643.
[6] FRANKS L E, SANDBERG I W. An alternative approach to the realization of network transfer functions: the N-path filter[J]. Bell System Technical Journal, 1960, 39(5): 1321-1350. DOI: 10.1002/j.1538-7305.1960.tb03962.x.
[7] MIRZAEI A, DARABI H, MURPHY D. Architectural evolution of integrated M-phase high-Q bandpass filters[J]. IEEE Transactions on Circuits and Systems I-Regular Papers, 2012, 59(1): 52-65. DOI: 10.1109/TCSI.2011.2161370.
[8] FORTGENS L C. Approximation of an ideal bandpass filter using an N-path filter with overlapping clocks and harmonic rejection[D]. Enschede: University of Twente, 2012.
[9] XU Y, ZHU J X, KINGET P R. A blocker-tolerant RF front end with harmonic-rejecting N-path filtering[C] // 2014 IEEE Radio Frequency Integrated Circuits Symposium. Piscataway, NJ: IEEE Press, 2014: 39-42. DOI: 10.1109/RFIC.2014.6851652.
[10] HEMATI A, JANNESARI A. Harmonic fold back reduction at the N-path filters[J]. International Journal of Circuit Theory and Applications, 2017, 45(3): 419-438. DOI: 10.1002/cta.2238.
[11] KHORSHIDIAN M, KRISHNASWAMY H. 26.7 an Impedance-Transforming N-Path filter offering passive voltage gain[C] //2021 IEEE International Solid-State Circuits Conference(ISSCC). Piscataway, NJ: IEEE Press, 2021: 365-367. DOI: 10.1109/ISSCC42613.2021.9365778.
[12] 钟辉,宋树祥,岑明灿,等.基于采样计算的差分N通道滤波器[J].广西师范大学学报(自然科学版),2022,40(4):58-67. DOI: 10.16088/j.issn.1001-6600.2021101102.
[13] GHAFFARI A, KLUMPERINK E A M, SOER M C M, et al. Tunable high-Q N-path band-pass filters: modeling and verification[J]. IEEE Journal of Solid-State Circuits, 2011, 46(5): 998-1010. DOI: 10.1109/JSSC.2011.2117010.
[14] XU Y, ZHU J X, KINGET P R. A Blocker-Tolerant RF front end with harmonic-rejecting N-path filter[J]. IEEE Journal of Solid-state Circuits, 2018, 53(2): 327-339. DOI: 10.1109/JSSC.2017.2778273.
[15] PURUSHOTHAMAN V K, KLUMPERINK E A M, CLAVERA B T, et al. A fully passive RF front end with 13-dB gain exploiting implicit capacitive stacking in a bottom-plate N-path filter/mixer[J]. IEEE Journal of Solid-state Circuits, 2020, 55(5): 1139-1150. DOI: 10.1109/JSSC.2019.2959489.
[16] TAVASSOLI M, JALALI A. Analysis of an enhanced-Q N-path filter with improved even-order harmonic rejection[J]. Circuits Systems and Signal Processing, 2018, 37(3): 939-964. DOI: 10.1007/s00034-017-0580-z.
[17] HAZRATI A, JALALI A. Signal folding improvement in N-path filters by programmable switched-LC band-stop pre-filtering[C] // 2019 27th Iranian Conference on Electrical Engineering(ICEE). Piscataway, NJ: IEEE Press, 2019: 228-232. DOI: 10.1109/IranianCEE.2019.8786687.
[18] HAZRATI A, JALALI A, MEGHDADI M, et al. A method for rejecting 3k-th harmonics in bandpass 6N-path filters[J]. International Journal of Circuit Theory and Applications, 2020, 48(3): 335-348. DOI: 10.1002/cta.2738.
[19] UL HAQ F, ENGLUND M, ANTONOV Y, et al. A six-phase two-stage blocker-tolerant harmonic-rejection receiver[J]. IEEE Transactions on Microwave Theory and Techniques, 2020, 68(5): 1964-1976. DOI: 10.1109/TMTT.2020.2966152.
[20] 盛艳婷,蒋品群,宋树祥,等.高增益差分无源N通道带通滤波器的设计[J].电子元件与材料,2022,41(12):1332-1338. DOI: 10.14106/j.cnki.1001-2028.2022.0292.
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