A compact bandpass filter using microstrip hairpin resonator for WLAN applications

• Main Authors: Azam, S. M. Kayser, Ibrahimy, Muhammad Ibn, Motakabber, S. M. A., Hossain, A. K. M. Zakir
• Format: Conference or Workshop Item
• Language: English; English
• Published: IEEE Explore 2018
• Subjects: T Technology (General); TK Electrical engineering. Electronics Nuclear engineering
• Online Access: http://irep.iium.edu.my/67817/1/67817_A%20Compact%20Bandpass%20Filter%20-%20article.pdf; http://irep.iium.edu.my/67817/2/67817_A%20Compact%20Bandpass%20Filter%20-%20scopus.pdf; http://irep.iium.edu.my/67817/; https://ieeexplore.ieee.org/document/8539247

This work represents a microstrip hairpin resonator-based bandpass filter for Wireless Local Area Network (WLAN). Two short-circuited microstrip comb-lines have been coupled at the two sides of a rectangular-loop to construct the hairpin resonator. The Taconic TLX-8 material has been used as the substrate to design the filter at a center frequency of 2.45 GHz. The designed filter exhibits a two-pole Chebyshev response with an insertion loss of -0.37 dB and a minimum return loss of -34.03 dB. This compact filter has a fractional bandwidth of 4.37% which sharply selects the entire bandwidth of WLAN frequencies.