摘要
为了使信道中微波滤波器更加小型化,双模滤波器逐渐成为研究热点,综合研究了源与负载间存在耦合的开路枝节加载双模滤波器的频响规律。通过传输零点理论推测了此类双模滤波器固有传输零点的分布规律,通过各通路信号的相位关系,在理论上推测了附加传输零点的分布规律。通过2种该类型滤波器实例验证了理论推测的正确性,使该类型滤波器趋于完备。
The open stub loaded dual-mode microwave filters with source-load coupling（ S-L coupling） are studied.The distribution rules of inherent transmission zeroes are studied by the transmission zero theory.The distribution rules of the extra transmission zeroes are studied theoretically by the phase relation of all signal paths of the dual-mode filter with S-L coupling.Finally,the open stub-loaded dual-mode filters are validated by two filter instances.The research of this paper makes the open stub-loaded dual-mode filter approach perfect.
出处
《无线电工程》
2016年第7期49-51,70,共4页
Radio Engineering
基金
国家自然科学基金资助项目(61308061)
