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 new type of spoof surface plasmon polaritons (SSPPs) developed from conventional substrate integrated waveguide (SIW) using ring slots and vias is proposed in this paper. The asymptotic frequency lower cutoff the SSPP structure can be easily tuned by changing width SIW walls radius slot, respectively. trapezoidal microstrip line a small slot are used for efficient mode conversion to smoothly ...

a filtering power divider/power combiner based on half mode substrate integrated waveguide technology for high power applications is proposed. this design includes one half mode substrate integrated waveguide cavity, one matched load, and four sections of quarter-wavelength transmission lines. the high isolation between output ports is obtained by combining the half mode substrate integrated wa...

Planar antenna reflectors are the modern design trend of both multibeam and frequency-scanning arrays. The planar implementation is typically performed using substrate-integrated waveguide (SIW) technology. A reflector’s profile can be different from canonical one (parabolic, elliptic, hyperbolic, etc.) because effect spatial dispersion reflection coefficient SIW-based surface. It should synthe...

<p>The main objective purpose of this paper is to study the enhancement techniques unloaded quality factor substrate integrated waveguide (SIW) resonator, given that filters depends first on resonators compose it. Performance achieved by employing a MATLAB-based genetic algorithm optimize geometrical parameters SIW resonator iterative convergence target frequency (10 GHz frequency). On ot...

A filtering power divider/power combiner based on half mode substrate integrated waveguide technology for high power applications is proposed. This design includes one half mode substrate integrated waveguide cavity, one matched load, and four sections of quarter-wavelength transmission lines. The high isolation between output ports is obtained by combining the half mode substrate integrated wa...

In this paper, a directional coupler is designed using the substrate integrated waveguide (SIW) method. The SIW consists of double-layer with transverse rectangular slots in middle two layers. proposed contains three ports. placement ports considered based on generalization power divider network. Each layer printed 0.508 mm Rogers RT/Duroid 5880 ( ε r = 2.2 $\epsilon _r=2.2$ and t n δ 0.0009 $t...