Design and synthesis of dual-band microwave bandpass filter based on hybrid polynomials
This paper presents a method of designing a bandpass filter using hybrid polynomials. Two different approaches are discussed in this paper. The first method uses class hybridization of a lowpass Chebyshev and highpass maximally flat to achieve the hybrid filtering function (HFF). The second method e...
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| Format: | Article |
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Electromagnetics Academy
2017
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| Online Access: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85016390599&partnerID=40&md5=84f33b1804c68b245d6ac347160ae574 http://eprints.utp.edu.my/19662/ |
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| Summary: | This paper presents a method of designing a bandpass filter using hybrid polynomials. Two different approaches are discussed in this paper. The first method uses class hybridization of a lowpass Chebyshev and highpass maximally flat to achieve the hybrid filtering function (HFF). The second method employs both Chebyshev polynomials of the first and second kinds to form a modified Chebyshev polynomial. Both methods achieve a narrowband dual-band lowpass prototype (DBLPP) without much deviation from classical methods of synthesis. The designs can be adapted into a modified interdigital prototype which will be shown in this paper. The results and measurements reflect a good adherence to the theoretical calculations. © 2017, Electromagnetics Academy. All rights reserved. |
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