Abstract This contribution presents miniaturization techniques for folded circular substrate integrated waveguide (FCSIW) cavity filters. The cavities support dual-mode operation. Two of these are combined to form a fourth-order filter. filter designs implemented. first one serves as reference and exhibits good manufacturability. For the second one, is modified, which leads $50\%$ more compactn...

In this paper, linearly and circularly polarized single-layer Substrate Integrated Waveguide (SIW) horn antennas with nearly equal half power beamwidths in principal planes for the 24 GHz ISM band are designed. The uniqueness of solution lies application a pixelated structure to design these SIW antennas. For design, novel heuristic algorithm called Binary Ink Stamp Optimization is proposed. At...

In this letter, a planar cavity-backed multiplexing antenna (SMA) is proposed and validated experimentally. A cavity realized by using novel transmission line known as substrate-integrated waveguide (SIW) technology. The design comprises five SIW cavities each one consisting of slot for launching the energy in free space. Three different types slots are employed lower mutual coupling compact ci...

A novel slow-wave waveguide structure is proposed, the guided-wave properties of which can be controlled by rotation nonuniform metasurface elements loaded on surface substrate-integrated waveguide. The proposed unit cell exhibit anisotropic parameters interest, i.e., equivalent permittivity and permeability along transverse direction that are different from those longitudinal direction. Such c...

A single pole double throw (SPDT) discrete switch design using switchable substrate integrated waveguide (SIW) resonators is proposed in this paper. It was designed for the millimeter wave multiple input output (MIMO) transceiver. An example application 5G communication 26 GHz band. High isolation between transmitter and receiver (in transceiver) needed SPDT to minimize any high radio frequency...

A new design method of the dual-band balanced bandpass filter (BPF) using multilayer packaging dual-mode substrate integrated waveguide (SIW) cavities is proposed. Split-type coupling topology based on resonators developed for design. Firstly, a single-band with perturbed metal vias designed. The TE201 mode and TE202 by can form passband. Secondly, an additional SIW cavity same placed in lower ...

This article presents a novel dual slant polarized antenna for millimeter-wave (mmWave) base stations. Compared with the traditional mmWave antennas, proposed offers advantages of high cross-polarization discrimination (XPD), good aperture efficiency, simple structure, and low profile. The corner-fed substrate integrated waveguide (SIW) cavity is adopted to improve port isolation XPD this slot-...

A novel technique to enhance the phase shifting range of a liquid crystal (LC)-based, substrate-integrated waveguide (SIW) shifter by inserting inductive posts (IPs) is presented for first time. The IPs inserted in LC-based SIW produce advance based on relative permittivity LC, resulting an additional differential shift. At 28 GHz, proposed structure with achieves ratio maximum shift (∆ϕmax) in...