A Substrate Integrated Waveguide to Substrate Integrated Coaxial Line Transition

Abstract

Abstract-In this paper, a novel substrate integrated waveguide (SIW) to substrate integrated coaxial line (SICL) transition using the 3 dB SIW power divider (PD) and SIW 180 • phase shifter (PS) is proposed. The SIW-to-SICL transition realizes the easy integration of SIW, SICL, and active device in the same microwave communication system based on the substrate-integrated technology (SIT). To validate the design concept, the prototype has been fabricated and measured. Measurements are in good agreement with simulations, and shows that the SIW-to-SICL transition features ultra-low insertion loss lower than 0.25 dB and with a fractional bandwidth over 10%.

Parametric Study of Different Shapes-Slotted Substrate Integrated Waveguide for Wideband Applications

“…However, the SIW presents a compact size with an equivalent width Weff compared with the conventional rectangular waveguide. Equations of the effective width and the cutoff frequency have been presented in [12] and [13], as follows . .…”

Dielectric Loaded Exponentially Tapered Slot Antenna Utilizing Substrate Integrated Waveguide Technology for Millimeter Wave Applications

“…So the SIW technology makes it possible to realize the waveguide in a substrate and provides a sophisticated way to integrate the waveguide with Mm wave planar circuits using the conventional low cost printed circuit technology [16][17][18][19]. Here, the dielectric filled waveguide is transformed to SIW by the support of vias for the side walls of the waveguide.…”

Varactor Loaded Phase Shifter with Frequency-adaptive Control Circuit

“…Different RF techniques and structures have been utilized to design phase shifters with stable bandwidth and also achieve variable or constant phase shifting. Substrate-integrated waveguide technique to implement phase shifters has some advantages such as low transmission and radiation losses [6][7][8].…”