A novel wearable textile dual-band antenna configuration based on a substrate integrated waveguide (SIW) cavity is presented. The miniaturization of the achieved by exploiting magnetic field symmetry square SIW cavity, reducing its size to 1/8 full with an eighth-mode configuration. This solution applied design for Long Range (LoRa) applications. operating frequency covers both UHF LoRa bands, ...

A power divider (PD)/ power combiner (PC) with high quality factor and enhanced output ports isolation using substrate integrated waveguide (SIW) technology is proposed. An SIW cavity is designed to provide a high quality factor filtering response and an SMD resistor is attached between two output ports to realize the high isolation. The value of the applied resistor is calculated by using the ...

In this article, novel architectures for high-speed substrate integrated waveguide (SIW) filtering switches with high-power handling are presented. A four-port double-pole, double-throw (DPDT) switch and a three-port routing demonstrated as proof-of-concept. For both switches, the structure consists of main switching circular cavity concentric posts. These posts enable excitation multiple reson...

A High-Q microwave (K band) MEMS resonator is presented, which employs substrate integrated waveguide (SIW) and micromachined via-hole arrays by ICP process. Nonradiation dielectric waveguide (NRD) is formed by metal filled via-hole arrays and grounded planes. The three dimensional (3D) high resistivity silicon substrate filled cavity resonator is fed by current probes using CPW line. This mono...

In this paper two linear arrays including a linear 1×4 and a planar 2×2 of microstrip patch and half-mode substrate integrated waveguide (SIW) cavity hybrid antenna are introduced and investigated. These are simply implemented using low cost single layer printed circuit board (PCB) process. The array element consists of a rectangular microstrip patch with appropriate dimensions in the vicinity ...

This article presents the methodology to design a single-fed circularly-polarized antenna with low front-to-back ratio (FBR). A circular-patch (CPatch) has been incorporated within rectangular-cavity, made of, substrate integrated waveguide (SIW). The size of CPatch and SIW cavity chosen appropriately, in manner, that both resonators dominant mode coincide. arrangement adopted realize basic rad...

In this paper, a novel perturbation approach for implementing the independently reconfigurable dual-mode dual-band substrate integrated waveguide (SIW) filter is proposed. Dual-frequency manipulation is achieved by adding perturbation via-holes (the first variable) and changing the lengths of the interference slot (the second variable) in each cavity. The independent control of the upper passba...

Circularly-polarized antenna is built based on a new SIW (substrate integrated waveguide)structure which contains cavity-backed resonator and a conventional polarized ring with twosquare slits in inner and outer ring that differ 90° at position and is proposed for right-handedcircular polarization (RHCP) and fabricated in two separate layers. A broadband impedancebandwidth of 13.9% and a RHCP a...

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...