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Compact Planar Magic-T Using E-Plane Substrate Integrated Waveguide (SIW) Power Divider and Slotline Transition

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3 Author(s)
Wenjie Feng ; Dept. of Commun. Eng., Nanjing Univ. of Sci. & Technol., Nanjing, China ; Wenquan Che ; Kuan Deng

A novel planar magic-T using an E-plane substrate integrate waveguide (SIW) power divider and a SIW-slotline transition is proposed in this letter. Due to the metal ground between the two input/output ports, the E-plane SIW power divider has a 180?? reverse phase characteristic. A SIW-slotline transition is utilized to realize the H-plane input/output port of the magic-T. Good agreement between the measured and simulated results indicate that the planar magic-T has a fractional bandwidth (FBW) of 18% (13.2-15.8 GHz), and the amplitude and phase imbalances are less than 0.24 dB and 1.5??, respectively.

Published in:

Microwave and Wireless Components Letters, IEEE  (Volume:20 ,  Issue: 6 )