Whiskers, hyperhemispheres, and a honeymoon

I plan to make a few historical comments on early research in antennas for submillimeter waves, as the area was known in the 1970's. The initial focus was on understanding the limits of the tungsten whiskers that were then used as antennas. However, as integrated-circuit technology improved, it became clear that planar antennas on semiconductor substrates were needed. However, these antennas interact strongly with substrate modes. One way to...