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High Efficiency V-band Power Combining Modules Using Slotline-to-Microstrip Transition  

Kim Dong-Ki (School of Electrical Engineering and Computer Science, Seoul National University)
Jeong Jin-Ho (Department of Electrical & Computer Engineering, University of California San Diego)
Kwon Young-Woo (School of Electrical Engineering and Computer Science, Seoul National University)
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Abstract
Two high-efficiency and high power power-combing modules were developed using slotline-to-microstrip transition at V-band. Power-combining modules incorporating two MMIC power amplifiers demonstrated combining efficiencies higher than $80\%$(maximum $86\%$) with saturated output power of 22.96 dBm and 22.81 dBm, respectively. The measurement of back-to-back connected combiners demonstrated insertion loss less than 1.2 dB with return loss better than 15 dB around 60 GHz, respectively.
Keywords
Power-Combining Module; Slotline-To-Microstrip Transition; High Power-Combining Efficiency;
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