A Compact E-Plane Sectoral Waveguide Power Combiner for Ku Band SATCOM Applications

This paper presents the design and development of a compact E-plane sectoral waveguide power combiner at Ku-band operating from 13.6 GHz to 15.6 GHz. The proposed 4-way in-phase power combiner involves only 2 design parameters and achieves a measured return loss better than 15 dB. The measured amplitude imbalance and phase imbalance are within 0.65 dB and 6 degrees respectively. The total power combining efficiency is better than 82.5 % over the entire band of operation. The E-plane power combiner is proposed to be used in Ku-band satellite communication applications.