نتایج جستجو برای: موجبر مجتمع زیرلایه siw
تعداد نتایج: 5592 فیلتر نتایج به سال:
Novel High-Selectivity Dual-Band Substrate Integrated Waveguide Filter with Multi-Transmission Zeros
A novel dual-band filter based on substrate integrated waveguide (SIW) is presented in this paper. The proposed filter is composed of two filters with different center frequencies and bandwidths, where they share input and output ports with source-load coupling using rectangular SIW cavity structure. Multi-transmission zeros have been obtained through electrical coupling between the source and ...
Compact Two-Layer Slot Array Antenna for K-Band Applications Based on Substrate Integrated Waveguide
A compact two-layer slot array antenna at 24GHz based on substrate integrated waveguide (SIW) technology is presented. The feed waveguide is placed underneath the slot array and is coupled through slanted slots to branches of the array leading to considerable reduction in size compared to onelayer SIW slot array antennas that are fed from one end. Fullwave electromagnetic simulations show excel...
In this paper a novel compact Substrate Integrated Waveguide (SIW) filter is proposed. A wideband band pass filter for microwave and millimeter-wave systems is investigated at 80 GHz center frequency with 10.5% fractional bandwidth. A Conductor backed coplanar waveguide is inserted in Substrate Integrated Waveguide (SIW) structure as transition to achieve sharper skirt characteristics. Simulate...
در این مقاله از موجبر تیغه ای که دارای تیغه با انحراف بیضی شکل است جهت تغذیه آنتن شکافی طولی قرار گرفته بر روی خط مرکزی موجبر تیغه دار استفاده می شود. روش پیشنهادی با جایگزین نمودن قسمتی از تیغه مستقیم موجبر تیغه دار با تیغه با انحراف بیضی شکل محقق می شود. تیغه با انحراف بیضی شکل دقیقا در زیر شکاف قرار گرفته است و در این حالت شکاف هیچگونه انحرافی نسبت به خط مرکزی موجبر ندارد. نتایج شبیه سازی بی...
Received Jun 12, 2014 Revised Aug 20, 2014 Accepted Aug 26, 2014 The present paper highlights an innovative broadband millimeter-wave single balanced diode mixer which is designed using a newly designed 90 substrate integrated waveguide (SIW) coupler and two cavities (SIW) filter. The mixer covers RF/LO operating frequency range which fluctuates between 10 to 12 GHz and IF port covers 2GHz. The...
Evanescent mode substrate integrated waveguide (SIW) is one of the promising technologies for design of light-weight low-cost microwave components. Traditional realization methods used in the standard evanescent waveguide technology are often not directly applicable to SIW due to dielectric filling and small height of the waveguide. In this work, one of the realization methods of evanescent mod...
Abstract— This paper presented the design of four-port network directional coupler at X-band frequency (8.2-12.4 GHz) by using substrate integrated waveguide (SIW) technique. SIW appears few years back which provides an excellent platform in order to design millimeter-wave circuits such as filter, antenna, resonator, coupler and power divider. It offers great compensation for smaller size and c...
Substrate Integrated Waveguides (SIW) are used for transmission of Electromagnetic waves. They are planar structures belonging to the family of Substrate Integrated Circuits. Because of their planar nature, they can be fabricated on planar circuits like Printed Circuit Boards (PCB) and can be integrated with other planar transmission lines like microstrips. They retain the low loss property of ...
The synthesis of long-term stable polyoxometalate (POM)-stabilized Pt nanoparticles (NPs) is described here. By means of controlled bulk electrolysis, the reduced POM anions, SiW(12)O(40)(4-) (or SiW(12)) and H(2)W(12)O(40)(6-) (or H(2)W(12)), respectively, served the dual role of reductant and protecting/stabilizing ligand for the Pt NPs. Transmission electron microscopy (TEM) images confirmed...
This article presented the design of two filters SIW (Substrate Integrated Waveguide) in two different bands. Their conceptions were made by two different topologies. The first SIW filter with circular inductive post in the band [33-50] GHz on an RT / Duroid 5880 substrate permittivity 2.2, the simulated results of this filter have shown that the insertion loss lower than -0.4 dB within 3.5% ba...
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