Miniaturized rectangular waveguide filters |
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| Authors: | Alexander Shelkovnikov Djuradj Budimir |
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| Affiliation: | 1. Wireless Communications Research Group, Department of Electronic, Communication and Software Engineering, University of Westminster, London W1W 6UW, United Kingdom;2. Wireless Communications Research Group, Department of Electronic, Communication and Software Engineering, University of Westminster, London W1W 6UW, United KingdomWireless Communications Research Group, Department of Electronic, Communication and Software Engineering, University of Westminster, London W1W 6UW, United Kingdom |
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| Abstract: | Two types of miniaturized rectangular waveguide filters are presented. Miniaturization is achieved using the slow‐wave effect of electromagnetic bandgap (EBG) surfaces and the left‐handed properties of split ring resonators (SRRs). The proposed EBG waveguide bandpass filter performs passband in the frequency range, which corresponds to the waveguide with the lower recommended operating band consequently enabling significant miniaturization of the structure. The SRR‐loaded bandstop filter makes use of the effect imposed by left‐handed medium (LHM), which is created by a combination of SRRs and wireline on the dielectric slab. Both filters are designed, simulated, and tested. Experimental results of the SRR‐loaded bandstop filter are presented to demonstrate feasibility of the proposed structures. © 2007 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2007. |
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| Keywords: | electromagnetic bandgap (EBG) structures left‐handed medium (LHM) rectangular waveguides split ring resonators (SRRs) waveguide filters |
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