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A compact microstrip combline filter for microwave S-band

Rezaee, S ; Sharif University of Technology | 2021

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  1. Type of Document: Article
  2. DOI: 10.1109/ICEE52715.2021.9544407
  3. Publisher: Institute of Electrical and Electronics Engineers Inc , 2021
  4. Abstract:
  5. In this paper, a wideband coupled-resonator microstrip bandpass filter is designed and experimentally demonstrated in the S-Band. The filter is comprised of quarter-wavelength hair-pin resonators, reducing resonator and filter footprint compared to conventional hairpin designs. Additionally, it is considerably forgiving to fabrication tolerances and yields remarkably close matched results between theory, simulation, and measured results. One demonstration presented has minimal insertion loss ${(< 1{dB})}$ for the entire wide bandwidth of 3.4 GHz to 4.2 GHz. Wider bandwidths up to 60% are also observed using the design. The proposed filter is an attractive solution when space is a critical issue to be considered, as well as high accuracy and wide bandwidth. © 2021 IEEE
  6. Keywords:
  7. Bandpass filters ; Bandwidth ; Microwave filters ; Resonators ; Combline ; Combline filters ; Coupled resonator ; Hairpin ; Micro-strips ; Microstrip bandpass filters ; Quarter-wavelength ; S-band ; Wide bandwidth ; Wide-band ; Microstrip filters
  8. Source: 29th Iranian Conference on Electrical Engineering, ICEE 2021, 18 May 2021 through 20 May 2021 ; 2021 , Pages 891-894 ; 9781665433655 (ISBN)
  9. URL: https://ieeexplore.ieee.org/document/9544407