Synthesis of codirectional couplers with ultralow sidelobes and minimum bandwidth.

Synthesis of codirectional couplers with ultralow sidelobes and minimum bandwidth.
复制标题

具有超低旁瓣和最小带宽的同向耦合器的合成。

DOI:
10.1364/ol.20.001259
复制
发表时间:
1995
期刊:
影响因子:
3.6
通讯作者:
W. Huang
W. Huang
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
B. Little;C. Wu;W. Huang

文献摘要

被引文献

相似文献

采用一种通用的变分优化方法来综合同向耦合器,使其旁瓣抑制降低到-125d B。变迹形状在-40分贝到-75分贝的范围内产生副瓣电平,由单一的设计公式给出。得到了无源衰减型耦合器的旁瓣抑制对带宽的限制性能。
A general variational optimization procedure is used to synthesize codirectional couplers with arbitrary sidelobe suppression down to -125 dB. Apodization shapes yielding sidelobe levels over the range of -40 dB to -75 dB are given by a single design formula. The limiting performance in terms of sidelobe suppression versus the bandwidth of passive evanescent-type couplers is found.