Dissertation > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Filtering techniques,the filter

Adjustable composite element frequency selective surface design

Author QiaoXueZeng
Tutor LuoXingFang
School Jiangxi Normal University
Course Optics
Keywords Frequency selective surface Method of Moments Composite unit Bandpass Bandstop
Type Master's thesis
Year 2011
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With the widely application of the multi-band antenna and frequency radar, inspired many scholars research interest of FSS. At present, the domestic many scientific research units have carried out the theoretical analysis and experimental study of FSS, and achieved some results. Simulation software based on Ansoft Designer has designed two kinds of composite unit frequency selective surfaces: one kind is adjustable composite unit frequency selective surface; Another is dual band composite unit frequency selective surface, the results showed that these two kinds of composite unit has the adjustable frequency selective surface, these two kinds of structure of frequency selective surface in communication and radar systems has potential application prospect. 1. Put forward a kind of by Fang Huan add cross ring compound unit of frequency selective surface design, the simulation results show that the structure of the transmission characteristic curve has a good stability of incident Angle. By adjusting the cycle of composite unit, the size of the outer ring and inner ring can obtain the passband and stopband. 2. In this paper, a by Fang Huan add circle aperture type composite unit of frequency selective surface design, the simulation results show that the structure with double frequency stability and also has the very good incident Angle, and the structure of the first frequency is controlled by a foreign ring, the second frequency band is controlled by the inner circle, independent of two frequency adjustable.

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