نتایج جستجو برای: x band satellite communication
تعداد نتایج: 1137459 فیلتر نتایج به سال:
Link Budget Analysis in Designing a Web-application Tool for Military X-Band Satellite Communication
The design of a novel curve microstripline 2x2 array antenna is presented in this research. In design, work X Band frequency. total size 40mm x 40mm. result indicates that the characteristics parametric showed by Voltage Standing Wave Ratio (VSWR≤2) proposed 1.06 (in simulated); 1.29 measured) and 1.20 numeric analyzed), bandwidth 260.0 MHz simulated) 310.0 reflection coefficient 0.03 0.17 retu...
The satellite communication data traffic is increasing dramatically over the coming years. High throughput multibeam satellite networks in Ka band are potentially able to accommodate the upcoming high data rate demands. However, there is only 500 MHz of exclusive band for download and the same amount for upload. This spectrum shortage impose a barrier in order to satisfy the increasing demands....
A new non-linear method for design and analysis of solid state power amplifiers is presented and applied to an aluminum gallium nitride, gallium nitride (AlGaN-GaN) high electron-mobility transistor (HEMTs) on silicon-carbide (SiC) substrate for Ku band (12.4 13.6 GHz) applications. With combining output power of 8 transistors, maximum output power of 46.3 dBm (42.6 W), PAE of 43% and linear ga...
In the last decade, the demand for reliable data, voice, and video satellite communication links between aircraft and ground to improve air traffic control, airline management, and to meet the growing demand for passenger communications has increased significantly. It is expected that in the near future, the spectrum required for aeronautical communication services will grow significantly beyon...
A simple Dielectric Resonator Antenna (DRA) for X band frequency operation is proposed in this paper. X band is a microwave band lies between frequency range 8 to 12 GHz. In proposed DRA reflector plane is used beneath the microstrip feed line with a small air gap, introduced between feed substrate and reflector plane to reduce the back lobe. Slot coupling is used to excite this DRA. Proposed D...
A broadband metamaterial absorber working in the X-band is designed and fabricated by 3D printing this study. This structure capable of nearly absorbing power incoming waves (more than 90%) frequency band starting from 7.1 to 13.8 GHz. based on an infinite array conductive ribbons, thickness just 0.1? for minimum (without considering ground layer). circuit model transmission line theory are use...
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