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Integrated planar spatial power combiner

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2 Author(s)
Lin Li ; Dept. of Electr. Eng., Ecole Polytech. de Montreal, Que., Canada ; Ke Wu

A simple low-loss integrated planar spatial power-combining architecture is proposed and studied in this paper. The power-combining structure is realized by transition between a simple oversized microstrip line and parallel multiport planar microstrip lines. The power combiner was simulated with parametric analysis and a working prototype at 25-31 GHz is designed and fabricated with four amplifier units. Measured results show a good agreement with simulated ones and a combining efficiency of 79.5% is achieved at 25 GHz.

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Microwave Theory and Techniques, IEEE Transactions on  (Volume:54 ,  Issue: 4 )