用于K波段应用的四路基板集成同轴线(SICL)功率分配器的设计

S. Mukherjee
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引用次数: 5

摘要

介绍了一种基于基板集成共轴线的四路功率分配器的设计。对基于SICL技术的功率分配器的不同配置进行了详细的研究。为了实现三端口接点的阻抗匹配,在Tee型和Y型分压器中都采用了基于SICL的四分之一波阻抗变压器。两种设计均具有相等的功率划分,输出功率在-3 0.05dB范围内。双向分压器输出端相位差小于0.5°。并对SICL 90°弯管的设计进行了研究。为了补偿弯曲处的无功负载效应,在中心导线处进行倒角,有助于提高设计的S参数性能。最后,将Tee和Y型功率分压器与SICL弯头级联,实现SICL四路等功率分压器。该设计工作在整个K波段(18-26 GHz),反射系数低于- 16 dB。本设计的输出功率在-6 0.55 dB以内,输出端口相位差小于0.9°。所提出的设计尺寸紧凑,带宽宽,适合实际应用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Design of Four-Way Substrate Integrated Coaxial Line (SICL) Power Divider for K Band Applications
In this paper, design of Substrate Integrated Coaxial Line (SICL) based four way power divider is presented. A detailed study of different configurations of power divider based on SICL technology is explored. To realize impedance matching at the three port junctions, SICL based quarter wave impedance transformer is used in both Tee and Y type power divider. Both the designs exhibit equal power division with output power within the range of -3 0.05dB. The phase difference between the output ports of the two way power divider is below 0.5°. A design of SICL 90° bend is also studied. To compensate the reactive loading effect at the bend, chamfering at the central conductor is implemented which helps to improve the S parameter performance of the design. Finally, the Tee and Y power divider is cascaded along with SICL bend to realize SICL four way equal power divider. The proposed design operates over entire K band (18–26 GHz) with its reflection coefficient below −16 dB. The output power of the design is within -6 0.55 dB and the phase difference between the output ports are below 0.9°. The proposed design is compact in size and exhibits broad bandwidth making it suitable for practical applications.
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