A Switched Beamforming of Fully Shielded Six Parasitic Planar Array for IoT Network
2020 IEEE International Conference on Communication, Networks and Satellite (Comnetsat)(2020)
摘要
An optimized switched parasitic smart antenna (SPSA) 915 MHz that consists of 6 monopole parasitic wires encircled a single feeding monopole wire and configured on top of a 328 mm circular ground plane was manufactured and evaluated. SPSA prototype is initially designed to support the practical operation of a particular IoT based surveillance network within the university campus environment. In practical, the constructed antenna installed at a server station will continuously detect the particular active sensor node and maintain the connection and the data transfer between sensor node and the server. A slightly different switched beamforming technique deployed on the fully shielded cover seven monopole wires planar array by electronically setting-up 3 parasitic wires to be grounded and three other floating at the same time in order to point the power beam into a certain direction. Through the sequential variations of those wires set-up then the main lobe directions would be pointed to 6 different directions, i.e. 0°/360°, 60°, 120°, 180°, 240°, and 300°.
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关键词
915-MHz SPSA,Switched Beamforming,IoT Network,Environmental Surveillance,RF-Switching and Planar Array
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