介質(zhì)損耗對(duì)頻率選擇表面?zhèn)鬏斕匦缘挠绊?/h2>
INFLUENCE OF DIELECTRIC LOSS ON THE TRANSMISSION PROPERTIES OF FREQUENCY SELECTIVE SURFACES
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摘要: 應(yīng)用模匹配技術(shù),研究了Y形縫隙平面周期陣列夾嵌于均勻有耗介質(zhì)層中心的夾心頻率選擇表面(FSS)結(jié)構(gòu)對(duì)平面波的傳輸特性。討論了介質(zhì)層對(duì)結(jié)構(gòu)中心諧振頻率、傳輸帶寬、以及傳輸損耗的影響規(guī)律。相同介電常數(shù)的介質(zhì)材料在有耗和無(wú)耗情況下的模擬分析結(jié)果清楚表明介質(zhì)本身的損耗是影響FSS結(jié)構(gòu)損耗特性的主要因素。
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關(guān)鍵詞:
- 介質(zhì)損耗; 頻率選擇表面; 傳輸特性
Abstract: The influences of supporting dielectric layers on the transmission properties of FSS with Y slot array embeded in the dielectric are studied in this paper. The frequency properties (resonance frequency, transmission bandwidth and transmission loss are included) of the FSS with different dielectric thickness are discussed. Calculated results show that dielectric losses are main sources of the base of FSS structure. -
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