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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Publisher: IEEE
Languages: English
Types: Other
Subjects:

Classified by OpenAIRE into

arxiv: Physics::Optics
This paper presents a method to improve the spurious performance of integrated ceramic waveguide filters. Nonuniform width ceramic waveguide resonator and evanescent mode ceramic resonators are employed together to the resonant frequencies of higher order modes. The proposed designs give 75% improvement in stop band response when compared to uniform width ceramic waveguide filter. Simulated results of two six pole chebyshev filters are presented here with improved stop band performance.
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    • [1] Chi, W., et al., Dielectric combline resonators and filters. IEEE Transactions on Microwave Theory and Techniques, 1998. 46(12): p. 2501-2506.
    • [2] Hunter, I.C. and M.Y. Sandhu. Monolithic integrated ceramic waveguide filters. in Microwave Symposium (IMS), 2014 IEEE MTT-S International. 2014.
    • [3] Hunter, I., S. Afridi, and M. Sandhu. Integrated ceramic waveguide filters with improved spurious performance. in Microwave Conference (EuMC), 2015 European. 2015.
    • [4] Hui-Wen, Y., et al. Improvement of spurious performance of combline filters. in Microwave Symposium Digest, 1997., IEEE MTT-S International. 1997.
    • [5] Weily, A.R. and A.S. Mohan. Mixed combline and He11 mode dielectric resonator filter with improved spurious performance. in Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific. 1997.
    • [6] Hee-Yong, H., et al. The design of band-pass filters made of both dielectric and coaxial resonators. in Microwave Symposium Digest, 1997., IEEE MTT-S International. 1997.
    • [7] Morelli, M., et al., Stopband performance improvement of rectangular waveguide filters using stepped-impedance resonators. IEEE Transactions on Microwave Theory and Techniques, 2002. 50(7): p. 1657-1664.
    • [8] Morelli, M., et al. Stop-band improvement of rectangular waveguide filters using different width resonators: selection of resonator widths. in Microwave Symposium Digest, 2001 IEEE MTT-S International. 2001.
    • [9] Escudero, J.M.P., et al. Enhancing the spurious free range in inductive rectangular waveguide filters. in Microwave Conference (EuMC), 2015 European. 2015.
    • [10] Sharjeel Afridi, M.Sandhu., Nutapong Somjit, Ian Hunter, Monolithic Ceramic Waveguide Filter with Wide Spurious Free Bandwidth, accepted in European Microwave 20162016: London, United Kingdom.
    • [11] Riblet, H.J., Waveguide filter having non identical section resonant at same fundamental frequency and different harmonic frequency, Oct 13. 1964: US.
    • [12] Iglesias, P.M. and I.C. Hunter. Non-uniform Q-factor distribution in microwave filters. in Microwave Conference (EuMC), 2012 42nd European. 2012.
    • [13] Matthaei, G.L., Microwave Filters, Impedance Matching Networks And Coupling Structure. 1964: Mc Graw Hill.
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