Dual band Stepped Impedance Interdigital Microstrip Filter for LTE Bands

William Johnson, Cavin Roger Nunes, Savio Sebastian Dias, Siddhi Suresh Parab and Varsha Shantaram Hatkar
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William Johnson: Department of ECE, Agnel Institute of Technology and Design,Goa, India
Cavin Roger Nunes: Department of ECE, Agnel Institute of Technology and Design,Goa, India
Savio Sebastian Dias: Department of ECE, Agnel Institute of Technology and Design,Goa, India
Siddhi Suresh Parab: Department of ECE, Agnel Institute of Technology and Design,Goa, India
Varsha Shantaram Hatkar: Department of ECE, Agnel Institute of Technology and Design,Goa, India

European Journal of Engineering and Technology Research, 2019, vol. 4, issue 7, 28-30

Abstract: In this paper, a dual band microstrip bandpass filter has been proposed utilizing three edge coupled resonators, interdigital stubs and DGS technique. To enhance the coupling degree, two interdigital coupled feed lines are employed in this filter. The suppressing cell consists of stepped impedance ladder type resonators, which provides a wide stopband. The proposed suppressing cell has clear advantages like low insertion loss in the passband and suitable roll off. The frequency response of the filter looks like a standard dual band band-pass filter. The filter exhibits a dual passband with resonant frequencies at 2.2GHz and 3.45GHz covers LTE1 and LTE22 bands.

Keywords: Microstrip; Stepped Impedance; Interdigital stubs; DGS; CSRR. (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:epw:ejeng0:v:4:y:2019:i:7:id:61407

DOI: 10.24018/ejeng.2019.4.7.1407

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