Design and Analysis of a Wide Stopband Microstrip Dual-band Bandpass Filter

  • Salah I. Yahya (1) Department of Communication and Computer Engineering, Cihan University-Erbil, Erbil, Iraq; (2) Department of Software Engineering, Faculty of Engineering, Koya University, Koya KOY45, Iraq http://orcid.org/0000-0002-2724-5118
  • Abbas Rezaei Department of Electrical Engineering, Kermanshah University of Technology, Kermanshah, Iran. http://orcid.org/0000-0003-0642-6726
  • Yazen A. Khaleel Department of Software Engineering, Faculty of Engineering, Koya University, Danielle Mitterrand Boulevard, Koya KOY45, Kurdistan Region http://orcid.org/0000-0001-5658-1164
Keywords: Microstrip, Bandpass filter, Dual-band, Harmonic attenuator, UHF, SHF

Abstract

A novel configuration of a dual-band bandpass filter (BPF) working as a harmonic attenuator is introduced and fabricated. The proposed filter operates at 3 GHz, for UHF and SHF applications, and 6.3 GHz, for wireless applications. The presented layout has a symmetric structure, which consists of coupled resonators. The designing of the proposed resonator is performed by introducing a new LC equivalent model of coupled lines. To verify the LC model of the coupled lines, the lumped elements are calculated. The introduced filter has a wide stopband up to 85 GHz with 28th harmonic suppression, for the first channel, and 13th harmonic suppression, for the second channel. The harmonics are attenuated using a novel structure. Also, the proposed BPF has a compact size of 0.056 λg2. Having several transmission zeros (TZs) that improve the performance of the presented BPF is another feature. The proposed dual-band BPF is fabricated and measured to verify the design method, where the measurement results confirm the simulations.

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Author Biographies

Salah I. Yahya, (1) Department of Communication and Computer Engineering, Cihan University-Erbil, Erbil, Iraq; (2) Department of Software Engineering, Faculty of Engineering, Koya University, Koya KOY45, Iraq

Salah I. Yahya is a Professor, joined the Department of Software Engineering at Koya University in 2010. He has a B.Sc. degree in Electrical Engineering, M.Sc. degree in Electronics and Communication Engineering and Ph.D. degree in Communication and Microwave Engineering. He is a Consultant at the Iraqi Engineering Union. Dr. Yahya has many scientific publications; (2) books [1] and [2], (13) Journal Articles and more than (31) conference papers. He is a senior member of the IEEE-USA and a member of AMTA-USASDIWC-Hong Kong. Dr. Yahya is a regular reviewer of the Electromagnetics Academy, Cambridge, USA, PIERS Journals publications, since 2009, Science and Engineering of Composite Materials journal and International Journal of Applied Electromagnetics and Mechanics, as well as, a regular reviewer of SDIWC conferences. His h-index is (7). (see TAP). [e-mail: salah.ismaeel@koyauniversity.org]

Abbas Rezaei, Department of Electrical Engineering, Kermanshah University of Technology, Kermanshah, Iran.

Abbas Rezaei is an Assistance Professor of Electrical Engineering in Kermanshah University of Technology. Abbas Rezaei received the B.Sc., M.Sc. and Ph.D. in Electronics Engineering from Razi University, Kerman-shah, Iran, in 2005, 2009 and 2013, respectively. His current research interests include RF and microwave circuits, computational intelligence and nanotechnology.

Yazen A. Khaleel, Department of Software Engineering, Faculty of Engineering, Koya University, Danielle Mitterrand Boulevard, Koya KOY45, Kurdistan Region

Yazen A. Khaleel is a professor; he is an academic staff member in the Department of Software Engineering - Faculty of Engineering at Koya University. In 1995 He got his B.Sc. degree in electrical and electronics engineering. He has MSc degree in Signal processing and PhD degree in Electronics and Digital Signal processing. He is a member in Iraqi Engineers syndicate and in Kurdistan Engineering Union. Dr. Yazen has (9) published Journal articles and (3) conference papers [email: yazen.adnan@koyauniversity.org]. [see TAP]

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Published
2021-12-15
How to Cite
Yahya, S. I., Rezaei, A. and Khaleel, Y. A. (2021) “Design and Analysis of a Wide Stopband Microstrip Dual-band Bandpass Filter ”, ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY, 9(2), pp. 83-90. doi: 10.14500/aro.10908.