W-band multiport substrate-integrated waveguide circuits

Multi-Port Technology and Applications

“…The SIW technology allows a high degree of integration of millimeter-wave circuits at low cost, as compared to the standard waveguide technology. The resulting size of circuits can be significantly reduced due to the inherent dielectric effects (Moldovan et al, 2006). The multi-port circuit, to be used in the RF module of a millimeter wave radar sensor, is designed and fabricated on a low-cost standard 254 µm alumina substrate.…”

Analysis and Design of SIW Components Based on H-Plane Planar Circuit Approach

“…In particular, recently, for the purpose of making use of merits such as low loss, low cost, and high-density integration of microwave and millimeter-wave components and subsystems, a SIW short-slot 90° hybrid coupler, and a six-port receiver consisting of the 90° couplers and/or power dividers have been developed. Since this technology is a relatively new concept, it is desired that more SIW circuit components and subsystems appear to open a new vista Moldovan et al, 2006). With regard to the analytical method of the SIW structure, the derivation of the propagation constant for the straight section of the guide has been studied on the basis of the Galerkin's method of moment (Hirokawa & Ando, 1998).…”

Characterization of the Propagation Properties of the Half-Mode Substrate Integrated Waveguide

“…In fact, during the recent years, the propagation properties of the SIW have been studied extensively [4]- [7] and a number of high-performance planar components have been developed based on SIW structures [8]- [12]. However, for many practical applications, the SIW is still too wide.…”