Analysis design and application of sphere loaded monopole antenna

This paper analyzed and studied configurations of the rotationally symmetric monopole antenna by applying the extended moment method. Its terminal uses a sphere-loaded technique. The optimum cone angle is obtained and the curve of the lower cut-off frequency versus height is discussed. A sphere loaded antenna is designed and fabricated for impulse radar. Theoretical calculations and partial experimental results are compared and reasonable agreement is obtained. The research provides a theoretical basis for practical design.