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Design of Compact Hairpin Structure for Microstrip Bandpass Filter

N. Priyanga, S. Karthie


Hairpin filter is one of the microwave frequency filters and it is popular because of its compact size. Hairpin filter is obtained from the edge-coupled resonator filter by folding back the ends of the resonator into a “U” shape and it does not require any grounding. A five pole hairpin resonators is designed to operate in the C-band frequency of 4.8 GHz. The hairpin filter design is carried out on different substrates like FR4, RT Duroid 6010 and RO 3010. The filter performance is compared among these different substrates and it is analyzed in terms of insertion loss and return loss.


Advance Design System Software, Edge-Coupled Resonator Substrates, Hairpin Filter, Insertion Loss, Return Loss.

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Ibrahim Azad, Md.Amran Hossen Bhuiyan, S.M.Yahea Mahub, “Design and performance analysis of 2.45 GHz microwave bandpass filter with reduced harmonics,” International Journal of Engineering Research and Development, vol.5, issue 11, Feb 2013, pp 57-67.

Aparna Thube, Manisha Chattopadhyay, “RF filter design using insertion loss method and genetic optimization algorithm,” International Journal of Engineering Research and Applications, vol. 3, issue 4, Jul-Aug 2013, pp 207-211.

Jia-sheng Hong and M. J. Lancaster, “Microstrip filters for RF/Microwave Applications,” John Wiley & sons, 2001.

Tanvi Singh, Jesseena Chacko, Neha Sebastian, Roshni Thoppilan, Ashwini Kotrashetti and Sudhakar Mande, “Design and optimization of microstrip hairpin-Line bandpass filter using DOE methodology,” International Conference on Communication, Information & Computing Technology (ICCICT), Oct. 19-20,2012.

A. A. Sulaiman, M. F. Ain, S. I. S. Hassan, “Design of Hairpin Band Pass Filters for K-Band application,” IEEE International RF and microwave conference, pp 266-269, 2008.

Ralph Levy, Richard V. Snyder and George Matthaei, “Design of microwave filters,” IEEE Transactions on Microwave theory and Techniques, vol. 50, no. 3, 2002.

David M Pozar, “Microwave and RF design of wireless systems,” John Wiley & sons, 2001.

Annapurna Das and Sisir K Das, “Microwave Engineering,” Tata McGraw Hill Education Private Limited, second edition,2009.


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