Radiation properties of a spherical dipole antenna

This paper describes an advanced spherical dipole antenna for use as a standard electromagnetic field emission source. Its radiated field is easily calculated, and its radiated frequency and amplitude are controlled over a wide frequency range by an outside signal generator through an optical fiber. The radiated field is calculated by the mode-matching method, and also measured for comparison. The theoretical and experimental values differ by less than 1dB in the frequency range 30 MHz-1000 MHz.International Symposium on Antennas and Propagation (ISAP1989), August 22-25, 1989, Tokyo, Japa