Journal of Modeling and Simulation in Electrical and Electronics Engineering

Journal of Modeling and Simulation in Electrical and Electronics Engineering

Implementation of a Fourth-Order Compact Quasi-Elliptic Substrate Integrated Waveguide Filter in C-Band

Document Type : Research Article

Authors
Narges kiani 1
Majid Afsahi 2
Farzad Tavakkol Hamedani 2
Pejman Rezaei 2
1 Shariati Technical and Vocational College, Tehran, Iran.
2 Faculty of Electrical and Computer Engineering (ECE), Semnan University,Semnan,Iran.
10.22075/mseee.2022.26905.1099
Abstract
Substrate Integrated Waveguide (SIW) technology by application of the planar construction process obtains a catchy means for integrating planar and nonplanar circuits. Further, it is hard to realize the negative coupling needed to create a compact quasi-elliptic bandpass filter based on a single-layered SIW structure. The presented work proposes a specific planar and negative coupling configuration that provides two transmission zeroes at 5.03 GHz and 6.26 GHz. This article presents a fourth-order quasi-elliptic filter. The proposed filter is also wide-band. This structure is implemented in SIW knowledge. The SIW filter has a central frequency of 5.5 GHz. The perfect bandwidth is 0.7 GHz. It is realized on a single-layer substrate from Rogers Ro4003. The Thickness of the substrate is considered as 0.508 mm. The measured outcomes of this filter, which show an excellent selectivity, and a low insertion loss of about 1.9 dB, agree suitably with simulation results. The designed filter's innovation provides these features: compact, low cost, wide-band, good selectivity, low insertion loss, and agreement between simulation and fabrication.
Keywords
Substrate Integrated Waveguide (SIW)
Quasi-Elliptic Filter
Band Pass Filter (BPF)
Electric Coupling
Magnetic Coupling
Subjects
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  • Receive Date 18 April 2022
  • Revise Date 22 August 2022
  • Accept Date 29 October 2022