A scalable multi-allowed band bandpass filter demonstrating ultra-wide-bandwidth, excellent efficiency, and sharp band-edge transition

Tsung-Yu Huang; Ta-Jen Yen

doi:10.1117/12.852409

29 April 2010 A scalable multi-allowed band bandpass filter demonstrating ultra-wide-bandwidth, excellent efficiency, and sharp band-edge transition

Tsung-Yu Huang, Ta-Jen Yen

Author Affiliations +

Proceedings Volume 7711, Metamaterials V; 77111H (2010) https://doi.org/10.1117/12.852409
Event: SPIE Photonics Europe, 2010, Brussels, Belgium

Abstract

By introducing both cavity mode and plasmonic resonance simultaneously in the designed sandwiched metamaterials, we present a scalable bandpass filter to demonstrate ultra-wide bandwidth, excellent efficiency and sharp band-edge transition. Our results show that this bandpass filter possess ultra-wide bandwidth (UWB) of 20 GHz centered at 60.5 GHz, with almost zero reflectance (0.0042) and present transitions within 0.6 GHz from -3dB to -20dB for upper and lower transmittance band-edge transition. Such an UWB bandpass filter is applicable for the commercialized unlicensed 60 GHz spectrum with a bandwidth exceeding 9 GHz, an unanswerable question for conventional passive bandpass filters to possess wide bandwidth and high quality factor simultaneously.

Citation Download Citation

Tsung-Yu Huang and Ta-Jen Yen "A scalable multi-allowed band bandpass filter demonstrating ultra-wide-bandwidth, excellent efficiency, and sharp band-edge transition", Proc. SPIE 7711, Metamaterials V, 77111H (29 April 2010); https://doi.org/10.1117/12.852409

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