Design of Millimeter-wave Rectangular Waveguide to HMSIW Transition Based on Trapezoidal-shaped Probe

作者：Dong, Jun^*; Liu, Yu; Yang, Ziqiang; Zhou, Yihong; Yang, Tao

来源：Journal of Infrared Millimeter and Terahertz Waves, 2014, 35(11): 909-917.

DOI：10.1007/s10762-014-0110-z

• Transition
• HMSIW
• rectangular waveguide
• trapezoidal-shaped probe

In this letter, a compact rectangular waveguide-to-half mode substrate integrated waveguide (HMSIW) transition is presented. It uses a trapezoidal-shaped probe to couple the energy from rectangular waveguide to HMSIW. A back-to-back test module at Ka-band is fabricated and measured. It provides a return loss better than 15 dB and an insertion loss of 0.85 to 1.3 dB within a frequency range from 25 to 40 GHz. The circuit size of the proposed transition is reduced by approximately 81.8% as compared with the waveguide-to-HMSIW transition using antipodal fin-line. Additionally, no intermediate transition is needed for this transition, which simplify the design of transition circuit. The measurement results agree well with simulation results, which validate the feasibility of the transition. Also, a tolerance analysis is performed via the simulation to verify the reliability of this transition design.

• 出版日期2014-11
• 单位电子科技大学