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Slots which are parallel with the bottom side are loaded at the two equilateral sides of the monopole isosceles triangle printed antenna to achieve multi-band in the operating frequency. The antenna is simulated by CST MICROWAVE STUDIO®, a 3-dimentional full wave electromagnetic simulation software, the simulated results indicate that the central frequency of the pass-band, as well as the bandwidth...
A high gain axial-mode helical antenna with parasitic element is proposed. A metal wafer is used as parasitic element, loaded in the front of general axial-mode helical antenna to achieve the aim of improving antenna gain. The diameter of the wafer and the distance between the wafer and the end of the helical wire, which can influence the antenna characteristics, are both simulated and optimized by...
The feed part which uses gradually changing structure usually has wider impedance bandwidth. A kind of trapezoid dipole antenna that is similar to the parallel dual-feed is analyzed in the essay. Adopting the software of CST Microwave to simulate how the structure parameter of antenna influences impedance character, a type of dipole antenna working within 1.85~3.75GHz is designed. The simulation results...
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