Design and Measurement of Near-Field-Focused Planar Arrays
Journal Title: 河南科技大学学报（自然科学版） - Year 2018, Vol 39, Issue 1
Abstract
In order to develop the focusing antenna used in the field of microwave hyperthermia, based on the principle of electromagnetic focusing, 4 × 4 near field focused planar microstrip array antenna with an operating frequency of 2.45 GHz was designed and fabricated.The phase required for each radiating element was obtained by calculation.The distance from the feed point to each radiating element was adjusted to control the phase of each radiating element so that the electric field of the radiating element had an in-phase superposition at a given point to realize near-field focusing.The simulation and test results show that the electric field energy of the antenna array is the largest at the focal point.On the sides of the focal point, the electric field energy shows a downward trend.The focusing spot is circular with 124 mm diameter, and the focusing depth is 62 cm.
Authors and Affiliations
Miao YE, Chengguo LIU, Jingwei ZHANG, Zhipeng WU
Keywords
Related Articles
- EP ID EP464650
- DOI -
- Views 75
- Downloads 0
Effects of MgSO4/MgCl2 on FGD Gypsum Solubility and Whisker Crystallization
Taking the purified flue-gas desulfurization ( FGD) gypsum as raw material, the calcium sulfate whiskers were prepared by hydrothermal method.The effects of additive MgSO4 or MgCl2 on the microstructure, aspect ratio of...
Laboratory Test of Silt Clay Consolidation by Vacuum Preloading
The consolidation effect of soil after vacuum preloading method was very different by depth. In order to explore the reason of vacuum degree loss during vacuum transfer via vacuum preloading method,the silt clay was used...
Effect of Sputtering Power on Optical Properties of TiO2 Film Prepared by Direct Current Magnetron Sputtering
A series of TiO2 films were deposited on glass substrate by direct current ( DC) magnetron sputtering under different sputtering power. The surface morphology, phase structure and film thickness of the as-deposited films...
Design and Realization of Mars Rover's Mobile System
Based on the opitimization design of system configuration,rover wheels and drive joints,a new type of mobile system of Mars rover was elaborated. By means of single-wheel platform experiment and overall system performanc...
Nonlinear Dynamic Response Analysis of Rotor-Ball Bearing System For Momentum Wheel
The dynamic equation of the rotor-bearing system of momentum wheel considering the nonlinear bearing force was established and solved by Runge-Kutta numerical method. The bifurcation diagrams, Poincare maps and amplitude...