Design of an Omnidirectional Slot Antenna for Microwave Vulcanization of Rubber Tires
In order to realize microwave vulcanization inside rubber tires,a 5.8 GHz omnidirectional cir-cular waveguide slot antenna is designed.The antenna is placed parallel to the sidewall in the center posi-tion of the rubber tire interior,and a rectangular waveguide TE10 to circular waveguide TM01 mode con-verter is used to achieve the required microwave mode feed.Three-dimensional CST electromagnetic simu-lation software is used to simulate and optimize the antenna.The reflection coefficient of the optimal an-tenna is less than-15 dB at the center frequency point,the horizontal incompleteness is less than 1.4 dB,the 3 dB bandwidth reaches 59°,and the pattern has good omnidirectional radiation characteristics.When the input power is 5kW,there is no breakdown and ignition phenomena.The mode converter reflects pa-rameters less than-15 dB at the center frequency point,and the mode conversion efficiency reaches 99%,which can achieve good mode conversion.
万方数据
维普
