@inproceedings{scholars3847, note = {cited By 2; Conference of 2013 5th IEEE International RF and Microwave Conference, RFM 2013 ; Conference Date: 9 December 2013 Through 11 December 2013; Conference Code:104251}, publisher = {IEEE Computer Society}, address = {Penang}, title = {Microwave bandpass filter using QMSIW}, journal = {RFM 2013 - 2013 IEEE International RF and Microwave Conference, Proceedings}, pages = {172--175}, doi = {10.1109/RFM.2013.6757242}, year = {2013}, abstract = {A planar bandpass filter based on a technique that utilizes quarter mode of substrate integrated waveguide (SIW) is presented. This concept reduces the circuit foot print of SIW to a quarter of its size, along with miniaturization good performance and high quality factor is maintained by the structure. The design concept for single-pole resonator structure is presented; and by coupling the resonators a two-pole substrate integrated waveguide bandpass filter is achieved for the frequency of 5.9 GHz. The results show that the filter insertion losses are better than 2 dB and return losses are less than 20 dB. The measured frequency response is in good agreement with the simulated response in the region of interest. {\^A}{\copyright} 2013 IEEE.}, keywords = {Bandpass filters; Frequency response; Microwave circuits; Poles; Resonators, Design concept; High quality factors; Microwave bandpass filter; QMSIW; Region of interest; Resonator structures; Return loss; Simulated response, Substrate integrated waveguides}, url = {https://www.scopus.com/inward/record.uri?eid=2-s2.0-84898044744&doi=10.1109\%2fRFM.2013.6757242&partnerID=40&md5=1b7c50c83562802cb8ef74fd0e26c69b}, author = {Ur Rehman, M. Z. and Baharudin, Z. and Zakariya, M. A. and Khir, M. H. M. and Khan, M. T.} }