Passband filters in the THz frequency range devices are one the most useful application of metamaterials to cover the so called THz gap. A design procedure to obtain THz filters with a broad transmission bandwidth is proposed. We apply the powerful and versatile Periodic Method of Moment (PMM) to evaluate the response of the metamaterial. The design is optimized by adopting a genetic algorithm to reach the target filter performance at a passband frequency centered at 1.25 THz. Two different solutions based on a single and a double frequency selective surface based on a low cost mylar substrate are compared. Herein we also plan to fabricate our design by applying UV-photolithography process to demonstrate the excellent performance.
Optimization of wide-bandpass filter within the terahertz frequency regime / S. Genovesi, T.-. Yen, A. Monorchio, E. Prati, Y.-. Chiang, F. Costa - In: 2011 XXXth URSI General Assembly and Scientific Symposium[s.l] : IEEE, 2011. - ISBN 978-1-4244-5117-3. - pp. 1-4 (( Intervento presentato al 30. convegno URSI General Assembly and Scientific Symposium tenutosi a Istanbul nel 2011 [10.1109/URSIGASS.2011.6050615].
Optimization of wide-bandpass filter within the terahertz frequency regime
E. Prati;
2011
Abstract
Passband filters in the THz frequency range devices are one the most useful application of metamaterials to cover the so called THz gap. A design procedure to obtain THz filters with a broad transmission bandwidth is proposed. We apply the powerful and versatile Periodic Method of Moment (PMM) to evaluate the response of the metamaterial. The design is optimized by adopting a genetic algorithm to reach the target filter performance at a passband frequency centered at 1.25 THz. Two different solutions based on a single and a double frequency selective surface based on a low cost mylar substrate are compared. Herein we also plan to fabricate our design by applying UV-photolithography process to demonstrate the excellent performance.Pubblicazioni consigliate
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