Compact high Q bandpass filter by using substrate integrated waveguide and split rings capacitive load post. Issue 12 (1st June 2019)

• Record Type: Journal Article
• Authors: Jelodar, A.; Nooraei Yeganeh, A.; Sedighy, S.H.
• Is Part Of: Electronics letters. Volume 55:Issue 12(2019)
• Page Start: 699
• Page End: 701
• Publication Date: 2019-06-01
• Subjects: waveguide filters -- microwave filters -- band‐pass filters -- substrate integrated waveguides -- Q‐factor; split rings capacitive posts -- high quality factor -- compact high Q bandpass filter -- split rings capacitive load post -- substrate integrated waveguide cavity filter -- low insertion loss -- compact bandpass filter structure -- frequency 4.8 GHz -- loss 2.1 dB; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2019.0208
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A substrate integrated waveguide cavity filter is designed by loading with two split rings capacitive posts. Using these split rings posts results in high quality factor, low insertion loss (2.1 dB), very narrow bandwidth (2%) at 4.6 GHz centre frequency and compact (0.97×0.5 λg 2 ) bandpass filter structure. The filter measured results are in good agreement with the simulation ones which prove the idea.