Recently, has emerged a n ew technology, substrate integrated waveguide (SIW) [1] [2], it has been applied successfully to the conception of planar compact components for the microwave and millimeter waves applications [3] [4]. Our study concerns the analysis of right bends of rectangular waveguides under SIW technology by the HFSS code, in order to simulate different chamfrain positions, throu...

Abstract This paper presents wideband split-ring antenna arrays based on substrate integrated waveguide (SIW) for Ka-band (26.5–40 GHz) applications. The array is fed by a 2.92 mm coaxial connector (K-connector) and the power equally distributed to each resonator. designed coplanar (CPW), SIW, CPW-to-SIW transition, coaxial-to-CPW two-stage SIW divider are described in detail. By using thin Rog...

This paper presents a quasi-elliptic filter (QEF) with arbitrary termination impedances (ATI). The proposed QEF is designed by adding cross-coupling between the first and last resonators of an ATI bandpass (BPF) Chebyshev response. QEFs can be in even-order location pair transmission zeros (TZs) controllable. To prove validity design, fourth-order were implemented on single-layer substrate-inte...

BACKGROUND Benzodiazepines are extensively used in primary care, but their long-term use is associated with adverse health outcomes and dependence. AIMS To analyse the efficacy of two structured interventions in primary care to enable patients to discontinue long-term benzodiazepine use. METHOD A multicentre three-arm cluster randomised controlled trial was conducted, with randomisation at ...

BACKGROUND Primary care interventions that promote cessation of benzodiazepine (BZD) use in long-term users are effective at 1 year, but their efficacy at 3 years is uncertain. AIM To assess the 3-year efficacy of two primary care interventions delivered by GPs on cessation of BZD use in long-term users. DESIGN AND SETTING Multicentre, three-arm, cluster randomised, controlled trial, with r...

Microstrip lines (MSL) are widely used in microwave systems because of its low cost, light weight, and easy integration with other components. Substrate integrated waveguides (SIW), which inherit the advantages from traditional rectangular waveguides without their bulky configuration, aroused recently in low loss and high power planar applications. This chapter proposed the design and modeling ...

Corresponding Author: Abdelkhalek Nasri Department of Physics, Electronics Laboratory, Faculty of Science, Tunis El Manar 2092, Tunisia Email: [email protected] Abstract: This paper focuses on the analysis of passive devices using a recent emerging technology named Substrate Integrated Waveguide (SIW). This technology has been used in the conception of planar compact components for the ...

In this work, a novel electrically reconfigurable phase shifter based on half-mode substrate integrated waveguide (HM-SIW) is proposed. SIW guided transmission line topology, and by using excitation, smaller size can be achieved. Phase shifters are electronic devices that change the of for wide range applications, including inverse scattering sensing. The tunability PIN diodes applied here to a...