zhao liu, li xiang-qiang, liu qing-xiang, et al. 16-element single-layered radial line helical square array antenna[J]. High Power Laser and Particle Beams, 2008, 20.
Citation:
zhao liu, li xiang-qiang, liu qing-xiang, et al. 16-element single-layered radial line helical square array antenna[J]. High Power Laser and Particle Beams, 2008, 20.
zhao liu, li xiang-qiang, liu qing-xiang, et al. 16-element single-layered radial line helical square array antenna[J]. High Power Laser and Particle Beams, 2008, 20.
Citation:
zhao liu, li xiang-qiang, liu qing-xiang, et al. 16-element single-layered radial line helical square array antenna[J]. High Power Laser and Particle Beams, 2008, 20.
The optimized simulation result of a C-band 16-element single-layered radial line helical square array antenna is presented and the experiment researches are developed for an antenna fabricated according to simulated structure. During experiment research, an impedance converter is designed to connect standard port with antenna port, and the method of comparing with standard linearly polarized antenna is used to measure antenna circularly polarized gain. The experiment result shows that, in the range of 3.8 GHz to 4.2 GHz, antenna gain is over 17 dB, aperture efficiency is over 74%, axial ratio is below 1.3 dB and antenna VSWR is below 1.2. It shows a good agreement with simulation result．
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