Design of a Compact Half Mode SIW Based Power Divider for Ku-Band Application

In this paper, a novel design for a highly compact half mode substrate integrated waveguide (HMSIW) power divider is proposed. To improve the isolation, a triangular-shaped slot is etched in the bottom layer of the HMSIW. To validate the proposed concept, equal power divider (PD) is designed, fabricated and tested. The size of the HMSIW prototype is 0.13λ
g
²
, where λ
g
is the guided wavelength. The proposed design operates at 12.7 GHz with the fractional bandwidth of 69.45% and the isolation achieved is 6 dB. The fabrication measured result is in good agreement with the simulated one.