A Novel Terahertz Rat-Race Hybrid Coupler Based on PPDW

作者：Yang, Xiaofan^*; Fan, Yong; Zhang, Bo; Ye, Longfang; Xu, Xiong

来源：Journal of Infrared Millimeter and Terahertz Waves, 2011, 32(11): 1291-1298.

DOI：10.1007/s10762-011-9818-1

• Terahertz
• Rat-race hybrid coupler
• PPDW

A novel rat-race hybrid coupler based on parallel-plate dielectric waveguide (PPDW) is proposed. PPDW has been proposed as a basic terahertz transmission line for its remarkable simple structure and comparatively low attenuation at terahertz frequency band. It can be applied to design many terahertz components. In this paper, a (3 N + 3/2) x lambda circumference PPDW rat-race hybrid coupler operating at quasi-TE(10) mode is studied. The investigation results show that, at 0.34 THz, the transmission losses of the two split output ports are both equals -3.2 dB; the return loss at its input port is below -20 dB; the insertion loss at each split transmission port is less than 0.2 dB; and the two isolated ports show good isolation of above 20 dB. Therefore, it will have wide potential applications at terahertz frequency band.

• 出版日期2011-11
• 单位电子科技大学