نتایج جستجو برای: siw cavity
تعداد نتایج: 79367 فیلتر نتایج به سال:
In this article, a compact dual-port single element MIMO antenna is presented for millimeter wave (mmWave) 5G wireless applications. The design consists of an annular ring slot that fed by Substrate Integrated Waveguide (SIW) at the two opposite sides substrate. resonates 28GHz and its 10dB impedance bandwidth 400MHz. isolation between ports reduced introducing additional acts as cavity which r...
Received Nov 9, 2017 Revised Jan 12, 2018 Accepted Feb 23, 2018 In this paper, design characteristics of cross slot coupling have been explored and realized in a proposed dual-layer SIW prototype for bandwidth enhancement at 10.0 GHz. The assembled prototype consists of two SMAmicrostrip input/output interface with low-loss microstrip-taper via transition and two manually stacked SIW structures...
Fluorescent microtubes based on α-Keggin tungstosilicate and fluorescein (SiW(12)-F) have been obtained by using a simple method, which present tunable photoluminescence from sky blue to green to red by variation of excitation light. The SiW(12) component can inhibit photobleaching of fluorescein.
Wave propagation in single layer substrate integrated waveguides (SIWs) loaded by embedded split ring resonators (ESRRs) is discussed theoretically and experimentally. It is shown that the loaded SIW can support a backward-wave passband below the cutoff frequency (fc) of the host SIW or a stopband will appear above fc if the effective transversal permeability is negative. In addition, varactor-...
A low cost 4 4 butler matrix fed antenna array has been proposed for Ku band applications. At high frequencies, the ohmic and dielectric losses are high and also the undesired feed radiation is more in the case of microstrip line feed, therefore substrate integrated waveguide (SIW) has been used to feed the antenna elements. The implementation of SIW technology improved the radiation performa...
This paper presents an overview of substrate integrated waveguide (SIW) design activities at the University of Victoria. Mode-matching techniques (MMTs) are employed to facilitate the design of planar SIW circuits as well as surface mounted waveguide (SMW) components. Active component integration and antenna design employ commercially available field solvers. Each category is highlighted by a s...
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...
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