Abstract
Microwave bandpass filter structure has been designed and fabricated by filling the periodically metallic apertures with dielectric particles. The microwave cannot transmit through the metallic subwavelength apertures. By filling the metallic apertures with dielectric particles, a transmission passband with insertion loss 2 dB appears at the frequency of 10-12 GHz. Both simulated and experimental results show that the passband is induced by the Mie resonance of the dielectric particles. In addition, the passband frequency can be tuned by the size and the permittivity of the dielectric particles. This approach is suitable to fabricate the microwave bandpass filters.
MeSH terms
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Computer Simulation
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Electronics / instrumentation*
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Equipment Design
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Filtration
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Microwaves
Grants and funding
This work was supported by the National “973” Program of China under Grant No. 2012CB315604; the National Natural Science Foundation of China under Grant Nos. 51402163, 61575028, 61574020 and 51221291 and 61376018; the Fundamental Research Funds for the Central Universities under Grant No. 2015RC18 and the Fund of IPOC BUPT, China; the China Postdoctoral Science Foundation under Grant Nos. 2013M530042 and 2014T70075; the Fund of State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), China.