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Y-junction power divider based on substrate integrated waveguide

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3 Author(s)
Zou, X. ; Missile Inst., Air Force Eng. Univ., Sanyuan, China ; Tong, C.-M. ; Yu, D.-W.

The substrate integrated waveguide (SIW) plays a very important role in millimetre-wave and microwave integrated circuits and systems with low return loss and high Q-factor. Also, the half-mode substrate integrated waveguide (HMSIW) has been developed in recent years. A new Y-junction four-way power divider is proposed by integrating the 90° Y-junction SIW power divider and HMSIW power divider. Simulated and measured results show that the return loss of the input port is below -15 dB over 8.6 to 12.2 GHz and transmissions are about -7.6 dB ± 0.2 dB in the passband. So, it makes the 6 dB power divider used preferably in a broad bandwidth. The new power divider can be produced in batches and can be widely used in millimetre-wave and microwave circuits owing to its simple and novel structure.

Published in:

Electronics Letters  (Volume:47 ,  Issue: 25 )