Measurement of resonant antennas structures formed with canonical spherical contours residing over conducting spheres and hemispheres

In this work, we present measured and simulated data for a family of antennas formed with conducting canonical spherical contours residing over conducting spheres and hemispheres. The antennas are probe-fed, similar in spirit to probefed patch antennas, as well as differentially fed using probe feeds. The physical construction for the feed to these antennas is accomplished using copper SMA cables that penetrate the inner sphere with the outside of the cable soldered to the sphere. The cable then re-emerges at a feed location elsewhere on the sphere with the outside of the cable again soldered to the sphere creating the unique feature of that the inside of these antennas are physically isolated from any time-varying current due to the feed. Because of this unique physical construction, it is ensured that stored energy will not exist within the supporting spherical structure.