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Spurline-embedded compact hairpin-line bandpass filters for wide harmonic suppression

Published online by Cambridge University Press:  16 August 2021

Tarun Kumar Das Open the ORCID record for Tarun Kumar Das [Opens in a new window]  and
Sayan Chatterjee
Tarun Kumar Das*
Affiliation:
ECE Department, Future Institute of Engineering and Management, Kolkata, India
Sayan Chatterjee
Affiliation:
ETCE Department, Jadavpur University, Kolkata, India
*
Author for correspondence: Tarun Kumar Das, E-mail: tarunj1979@gmail.com
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Abstract

The current paper describes the design of a fourth-order compact narrow-band hairpin-line bandpass filter centered at 2.5 GHz and enhanced stopband suppression ~38 dB required for wireless local area network (IEEE802.11b). The size reduction of 24% has been achieved for a conventional hairpin-line filter with a second-order inward folding of the open-end arms with an improvement in the skirt characteristics. However, the folding mechanism has been overshadowed by the presence of spurious harmonics with an attenuation level of <10 dB. Subsequently, L-shaped spurlines with optimum dimensions have been incorporated in the coupled arms of the folded hairpin-line cells. Three fourth-order filters have been designed with the incorporation of spurlines in different coupling regions, fabricated, and tested experimentally. Accordingly, an extended stopband with a rejection level of 38 dB up to 4.48f0 and a size reduction of 18% over the conventional hairpin-line filter has been achieved.

Keywords

Bandpass filterhairpin-lineharmonic suppressionspurline
Type
Filters
Information
International Journal of Microwave and Wireless Technologies , Volume 14 , Issue 5 , June 2022 , pp. 553 - 565
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Copyright
Copyright © The Author(s), 2021. Published by Cambridge University Press in association with the European Microwave Association

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References

Hong, J-S and Lancaster, MJ (2001) Microstrip Filter for RF/Microwave Applications. New York: Wiley.CrossRefGoogle Scholar
Singh, T, Chacko, J, Sebastian, N, Thoppilan, R, Kotrashetti, A and Mande, S (2012) Design and optimization of microstrip hairpin-line bandpass filter using DOE methodology. Proceedings of International Conference on Communication, Information & Computing Technology (ICCICT), pp. 1–6.CrossRefGoogle Scholar
Nwajana, AO (2020) Circuit modelling of bandpass/channel filter with microstrip implementation. Indonesian Journal of Electrical Engineering and Informatics (IJEEI) 8, 696–705.CrossRefGoogle Scholar
Kim, S and Kim, NY (2015) Compact bandpass filter with wide stop band response based on meandered-line stepped-impedance resonator using IPD process. Microwave and Optical Technology Letters 57, 1466–1470.CrossRefGoogle Scholar
Mezaal, YS and Al-Zayed, AS (2019) Design of microstrip bandpass filters based on stair-step patch resonator. International Journal of Electronics 106, 477–490.CrossRefGoogle Scholar
Qian, ZY and Chen, JX (2019) Compact bandpass filter using CMRC-based dual-behavior resonator. International Journal of RF and Microwave Computer-Aided Engineering. 29, e21719.CrossRefGoogle Scholar
Troudi, Z, Machac, J and Osman, L (2019) Miniaturised planar band-pass filter based on interdigital arm SRR. IET Microwaves, Antennas & Propagation 13, 2081–2086.CrossRefGoogle Scholar
Lu, S, Xu, KD, Guo, Y, Ren, Y and Chen, Q (2021) Bandpass filter using coupled-line-stub cascaded structure with high stopband rejection. Microwave and Optical Technology Letters 63, 69–74.CrossRefGoogle Scholar
Lopetegi, T, Laso, MA, Falcone, F, Martin, F, Bonache, J, Garcia, J, Perez-Cuevas, L, Sorolla, M and Guglielmi, M (2004) Microstrip “wiggly-line” bandpass filters with multispurious rejection. IEEE Microwave and Wireless Components Letters 14, 531–533.CrossRefGoogle Scholar
Sánchez-Soriano, MÁ, Torregrosa-Penalva, G and Bronchalo, E (2012) Multispurious suppression in parallel-coupled line filters by means of coupling control. IET Microwaves, Antennas & Propagation 6, 1269–1276.CrossRefGoogle Scholar
Partal, HP (2010) Cross coupled wiggly line hairpin filters with high selectivity and spurious suppression. In The 40th European Microwave Conference, pp. 1265–1268.Google Scholar
Ghalibafan, J, Fallahzadeh, S, Komjani, N and Tayarani, M (2011) Design of a compact hairpin filter with spurious suppression. Journal of Electromagnetic Waves and Applications 25, 1059–1067.CrossRefGoogle Scholar
Lotfi-Neyestanak, AA and Lalbakhsh, A (2012) Improved microstrip hairpin-line bandpass filters for spurious response suppression. Electronic Letters 48, 858–859.CrossRefGoogle Scholar
Huang, F (2014) Suppression of harmonics in microstrip filters with stagger tuning and voltage redistribution. IEEE Transactions on Microwave Theory and Techniques 62, 464–471.CrossRefGoogle Scholar
Marimuthu, J, Bialkowski, KS and Abbosh, A (2016) Compact bandpass filter with sharp passband and wide harmonic suppression using miniaturized coupled structure loaded with stepped-impedance stubs. Microwave and Optical Technology Letters 58, 2505–2508.CrossRefGoogle Scholar
Huang, T and Shao, Z (2017) A size-miniaturized bandpass filter with selectivity-enhanced and high harmonic suppression performance. International Journal of Microwave and Wireless Technologies 9, 1809–1816.CrossRefGoogle Scholar
Dembele, SN, Zhang, T, Bao, J and Bukuru, D (2018) Compact microstrip bandpass filter using dual closed-loop stepped impedance resonator. International Journal of Microwave and Wireless Technologies 10, 405–411.CrossRefGoogle Scholar
Cheng, F, Lu, P and Huang, K (2019) Realization of transmission zeros for bandpass filter using inductive-coupled stub-loaded resonators. International Journal of Microwave and Wireless Technologies 12, 34–38.CrossRefGoogle Scholar
Olvera-Cervantes, JL, Corona-Chavez, A, Kaur, T and Romero-Ramirez, MA (2019) Novel microwave balanced bandpass filter with high common mode rejection ratio and wide rejection band under common mode operation. Journal of Electromagnetic Waves and Applications 33, 1644–1651.CrossRefGoogle Scholar
Chu, P, Guo, L, Zhang, L and Wu, K (2019) Wide stopband bandpass filter implemented by stepped impedance resonator and multiple in-resonator open stubs. IEEE Access 7, 140631–140636.CrossRefGoogle Scholar
Das, TK and Chatterjee, S (2020) Compact hairpin line bandpass filter with improved spurious passbands suppression. International Journal of Electronics, 1–17, doi: 10.1080/00207217.2020.1859142Google Scholar
Gómez-García, R, Yang, L and Muñoz-Ferreras, JM (2021) Optimisation-based design of transversal signal-interference microwave bandpass and lowpass filters with extended stopband. IET Microwaves, Antennas & Propagation 15, 653–660.CrossRefGoogle Scholar
Wang, C, Zhang, Z, Shi, L, Shen, L, Liu, H and Ahn, D (2010) Miniaturized hairpin filter using asymmetrical spur-lines with multiple transmission zeros. Journal of Electromagnetic Waves and Applications 24, 341–349.CrossRefGoogle Scholar
Tang, CW, Teng, CH and Sun, JM (2013) Design of wide-stopband microstrip bandpass filter with assistance of spur lines. Electronics Letters 49, 126–127.CrossRefGoogle Scholar
Huang, T, Shao, ZH and Chen, Z (2018) Miniaturized wideband bandpass filter with enhanced selectivity and stopband suppression. Microwave and Optical Technology Letters. 60, 769–772.CrossRefGoogle Scholar
Yan, F, Huang, YM, Huang, T, Ding, S, Wang, K and Bozzi, M (2019) Transversely compact single-ended and balanced bandpass filters with source-load-coupled spurlines. Electronics 8, 416–429.CrossRefGoogle Scholar
Bates, RN (1977) Design of microstrip spur-line band-stop filters. IEE Journal on Microwaves, Optics and Acoustics 1, 209–214.CrossRefGoogle Scholar
Nguyen, C, Hsieh, C and Ball, DW (1983) Millimeter wave printed circuit spurline filters. The IEEE MTT-S International Microwave Symposium, pp. 98–100.CrossRefGoogle Scholar