Search Results - Xing Sirui
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Design of high-gain wideband high directivity array antenna for satellite communication system
Published 2024-03-01Get full textTo meet the satellite requirements for electromagnetic wave transmission in X-band communication system, a new X-band high-gain wideband high directivity microstrip array antenna is designed by selecting different antenna types. The performance of the antenna is improved by various technical means i...
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Design of L-band wideband high-gain circularly-polarized microstrip antenna for satellite communication system
Published 2022-01-01Get full textIn response to the requirements of satellite L-band communication and forwarding systems, a novel type of satellite-borne L-band broadband high-gain circularly polarized microstrip antenna is designed. The microstrip antenna adopts a side-fed feeding method as a whole, adopts an H-shaped slot coupli...
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Subcarrier synchronization for satellite USB TT&C
Published 2022-05-01Get full textJilin-1 satellites TT&C adopts USB system. The receiver adopts the architecture FFT+DPLL1+DPLL2. FFT mainly realizes coarse capture of carrier. DPLL1 realizes tracking of carrier phase on the basis of FFT. DPLL2 realizes subcarrier tracking. This paper studies the digital PLL technology used in...
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