An In-Phase Output Ka-Band Traveling-Wave Power Divider/Combiner Using Double Ridge-Waveguide Couplers

作者：Chu Qing Xin^*; Kang Zhi Yong; Wu Qiong Sen; Mo Da Yi

来源：IEEE Transactions on Microwave Theory and Techniques, 2013, 61(9): 3247-3253.

DOI：10.1109/TMTT.2013.2273764

• In-phase output
• power divider/combiner
• ridge-waveguide coupler
• traveling wave

A Ka-band traveling-wave power divider/combiner, which is based on double ridge-waveguide couplers, is presented. The in-phase output, which is a challenge of the waveguide-based traveling-wave power divider, is achieved by optimizing the equivalent circuit of the proposed structure. The novel ridge-waveguide coupler has advantages of low loss, high power capability, and easy assembly. Finally, the proposed power divider/combiner is simulated, fabricated, and measured. A 15-dB measured return-loss bandwidth at the center frequency of 35 GHz is over 28%, a maximum transmission coefficients amplitude imbalance of +/- 1 dB is achieved, and the phase deviation is less than +/- 12 degrees from 32 to 39 GHz.

• 出版日期2013-9
• 单位华南理工大学