【作者】 谢继杨； 赵小云； 杨宏春； 孙久勋；

【Author】 Xie Jiyang;Zhao Xiaoyun;Yang Hongchun;Sun Jiuxun;University of Electronic Science and technology of China;

【机构】 电子科技大学；

【摘要】 本文提出了一种改善瞬态天线低频辐射性能的方法。通过加载电阻,在天线增益不恶化的前提下,降低了天线的起始频率,提高了前向辐射,同时抑制了后向辐射。利用该方法设计的瞬态天线工作频带为0.22 GHz～2.5 GHz(167.6%),其电尺寸为0.29λ(L)×0.11λ(W)×0.19λ(H)。相比未加载的瞬态天线,加载电阻后其口径的电尺寸缩减了30%,前向辐射增加了5%,后向辐射减小了35%。更多还原

【Abstract】 This article proposes an approach to improve the low-frequency radiation performance of transient antennas.By loading resistors,the turn-on frequency of the antenna is lowered,the forward radiation is amplified,and the backward radiation is suppressed without deteriorating the antenna gain.The transient antenna designed by this approach has a frequency band of 0.22 GHz～2.5 GHz(167.6 %) and an electrical size of 0.29 λ(L) × 0.19 ×(H) × 0.11 λ(W).Compared to the unloaded transient antenna,the aperture electrical size of the loaded antenna decreases by 30 %,the forward radiation increases by 5 %,and the backward radiation decreases by 35%.更多还原