PT Journal
AU Brown, ER
   Lee, AWM
   Navi, BS
   Bjarnason, JE
TI Characterization of a planar self-complementary square-spiral antenna in the THz region
SO Microwave and Optical Technology Letters
JI Microwave Opt Technol Lett
PY 2006
BP 524
EP 529
VL 48
IS 3
DE optical antennas; square spiral antenna; self complementary THz; photomixing; lens; method of moments; geometric optics; physical optics
AB This paper describes a compact, self-complementary square-spiral antenna on a GaAs substrate with a broadside high-directivity (~9 dB) frequency-independent pattern when coupled through a silicon hyperhemisphere. The driving-point resistance undulates between ~00 and 300Ω from 200 GHz to 1 THz—much higher than the 72Ω value from Booker's modified formula, but quite beneficial for coupling to high-impedance broadband devices
ER