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A broadband seven-port unequal power divider with large division ratio is designed based on the technique of T-shape stub. A T-shape stub is introduced to replace the conventional design for high characteristic impedance line in realization due to very small line width. The theoretical basis of the proposed T-shape stub is analyzed in detail using the Method of Matrix Algebra Analysis. The proposed design is simulated, fabricated and measured. The measured results are in good agreement with the simulated ones, and a large division ratio of 1:6 is achieved. The operation bandwidth of the proposed design is about 12 % (from 4.8 to 5.4 GHz).

Seven-Port Unequal Power Divider with Broadband and Large Division Ratio Characteristics Based on T-shape Stub