New Wilkinson Power Dividers Based on Compact Stepped-Impedance Transmission Lines and Shunt Open Stubs
New Wilkinson Power Dividers Based on Compact Stepped-Impedance Transmission Lines and Shunt Open Stubs
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DOI：
10.2528/pier11111612
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发表时间：
2012
影响因子：
6.7
通讯作者：
Pu-Hua Deng;Jin-Hao Guo;Wen-Chi Kuo
中科院分区：
文献类型：
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作者：
Pu-Hua Deng;Jin-Hao Guo;Wen-Chi Kuo
本研究提出了新的威尔金森功率分压器，采用紧凑的阶跃阻抗结构和容性负载来实现所需的功率划分。这种方法可以产生额外的传输零，并有效地抑制所需的阻带，因为并联的开路存根实现了容性负载。本研究提出两个等分分法和两个不等分分法。对于第一个等分路的情况，在每条传输路径中，一个并联开路存根形成所需的电容器，在每条路径中产生一个额外的传输零。为了在每条传输路径上多获得一个传输零，第二个威尔金森功率分压器在每条路径上使用两个并联开路存根来实现与第一个分压器相同的电容值。本研究也测试了在每条路径上有一个和两个传输零的不等分路分压器，以证实紧凑的阶跃阻抗传输线和并联对地电容器可以用于不等分路。
This study presents new Wilkinson power dividers using compact stepped-impedance structures and capacitive loads to achieve the required power splitting. This approach can produce additional transmission zeros and efiectively suppress the desired stopbands because shunt open stubs realize capacitive loads. This study proposes two equal-split dividers and two unequal-split dividers. For the flrst equal-split case, one shunt open stub forms the needed capacitor in each transmission path, creating one additional transmission zero in each path. To obtain one more transmission zero in each transmission path, the second Wilkinson power divider uses two shunt open stubs in each path to achieve the same capacitor value as the flrst divider. This study also tests unequal-split dividers with one and two transmission zeros in each path to conflrm that compact stepped-impedance transmission lines and shunt-to-ground capacitors can be utilized in unequal power division.