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《Acta Electronica Sinica》 2017-08
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A Transition from Microstrip to SINRD Waveguide of PCB Version

HU Xiao-Jun;XU Feng;LI Qian;School of Electronic Science and Engineering,Nanjing University of Posts and Telecommunications;  
Since the substrate integrated nonradiative dielectric( SINRD) waveguide fabricated directly on printed circuit boards( PCBs) was proposed,it has been a key issue howto excite the SINRD waveguide by using a planar structure.This paper presents a novel planar transition of the SINRD waveguide. The transition first uses a transition structure from microstrip to slotline. After that,since the field distribution of quasi-TEMmode of a slotline is similar to that of SINRD waveguide LSM11 mode,the main mode LSM11 of SINRD waveguide can be excited very well. By using multi-structure,two Arlon TC600 boards with different heights,the transition from microstrip to slotline can be directly fabricated on the thinner board. In this way,the good performance of the transition from microstrip to slotline can be achieved while the slotline is located almost in the middle of the dielectric strip of SINRD waveguide therefore can be used to excite the SINRD waveguide.It means that wider bandwidth and higher integration can be obtained. The simulation results and measurement data verify the novel transition.
【Key Words】: printed circuit board slot line substrate integrated nonradiative dielectric waveguide
【Fund】: 国家自然科学基金(No.61171052)
【CateGory Index】: TN814
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