Electrical responsivity and radiation patterns are presented for a Nb
microbolometer coupled to an ultrawideband spiral antenna at 300 K. A
hyper-hemispherical substrate lens focuses incident radiation through the
substrate onto the antenna. The Nb bridge is suspended in air between the feed
points of the equiangular spiral antenna with a nominal bandwidth of 0.2-1.8
THz. Pattern measurements are performed at 95 GHz, 238 GHz, and 650 GHz.
Polarization at 95 GHz is also explored.
|IEEE MTT-S International Microwave Symposium
|IEEE/MTT-S International Microwave Symposium 2007
|3/06/07 → 8/06/07
- lens antennas
- submillimeter waves
- wave measurements