Broadband stripline to rectangular waveguide transition

Abstract

In this work, a broadband stripline-to-rectangular waveguide transition is presented. It uses a rectangular-shaped probe to couple the energy from rectangular waveguide to stripline. The two ground planes of the stripline are extended for field matching of the transition. A back-to-back transition prototype at Ka-band is designed, fabricated and measured. The measured results show that the transition has less than 1.2 dB insertion loss and better than 15 dB return loss over the frequency range from 26.5 to 40 GHz. The 15 dB fractional bandwidth is increased from 11.6 to 41% compared with conventional stripline-to-waveguide transition. The measured results agree well with simulated ones.

Low transmission loss, simple, and broadband waveguide-to-microstrip line transducer in V-, E- and W-band

“…Consequently, we chose a Finline type [4,5] instead of a probe transition type [6,7]. The function of the waveguide-to-MSL transducer is to convert a TE 10 electric field in the rectangular waveguide by 90°and concentrate the field in the MSL mode by using an antipodal tapered ridge structure.…”

3-D empty substrate integrated waveguide phase shifter with equal length

“…Several microwave and millimeter-wave passive components based on substrate integrated waveguide (SIW) technology have been studied and published, such as power divider, coupler, filter, phase shifter, antenna, etc [1,2,3,4,5,6,7,8,9,10]. The most prominent advantages for SIW are its simple structure, low radiation, low insertion loss, and low cost [11].…”