In recent years, with the rapid development of integrated circuits, filtering antenna (FA) circuit substrate waveguide (SIW) has attracted widespread attention in wireless communications. Numerous structures have been proposed to improve performance SIW FA. Hence, this paper presents and miniaturization trend FA, briefly introduces structure historical terms mode, multi-mode cavities incomplete...

Herein, a rigorous derivation of an isosceles right-angled triangular (IRT) metallic cavity is analysed. Then, the transverse field components in IRT substrate-integrated waveguide (SIW) are derived, and expression resonant frequencies can also be obtained. novel perturbed SIW proposed, which based on characteristics modes capacitive-loading technique. Three prototypes were designed to verify v...

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...

The approach to defining a coalition Battle Management Language (BML) now being pursued by SISO requires mapping of BML into a JC3IEDM database, which is accessed via a Web service. In previous SIW papers we have reported on a new approach to implementing such a Web service, based on the notion of an interpreter module. This scripting engine takes as its input the schema of the Web service and ...

Three heteropolyanion substituted hydrotalcite-like compounds (HPA-HTLcs) including Mg₉Al₃(OH)₂₄[PW₁₂O₄₀](MgAl-PW₁₂), Mg₉Al₃(OH)₂₄[PMo₁₂O₄₀] (MgAl-PMo₁₂) and Mg₁₂Al₄(OH)₃₂[SiW₁₂O₄₀] (MgAl-SiW₁₂), were synthesized, characterized and used as catalysts for the oxidative desulfurization of simulated oil (dibenzothiophene, DBT, in n-octane). MgAl-PMo₁₂ was identified as an effective catalyst for the...

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...

A microstrip-fed air-substrate-integrated waveguide (ASIW) slot array with high efficiency and low cost is presented. The design cuts out the substrate material within SIW, replaces vias metallic sidewalls, uses a simple microstrip line-waveguide transition to feed array. Radiating slots are cut on 5-mil brass-plate, which covers top of cutout resemble hollow structure. This implementation prov...

The traditional brick bungalow is not conducive to long-term grain storage because of its poor thermal insulation. In this paper, a new type wall element for bungalows with both load-carrying and insulation functions, called “Structure-Insulation” integrated panel (SIW), proposed improving the environment. To study reliability SIW under multivariable randomness availability different zones, fin...