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A novel compact wideband four-way w-band waveguide power divider with low insertion loss

A novel compact wideband four-way waveguide power divider has been developed for millimeter-wave/THz array application. The power divider was realized by interconnecting three novel H-plane T-junction structures. By properly choosing the length of the interconnecting rectangular waveguide, the bandwidth of the proposed four-way power divider can be broadened. Good phase and amplitude balance of all output ports are guaranteed by its symmetrical structure. According to EM simulations, the simulated -20dB return loss bandwidth is from 74.9GHz to 98.3GHz, and good amplitude and phase balance are got in the operating band. The proposed structure has the characteristics of wideband, compact structure, and high power capacity.