On the dielectric constant of GaAs at microwave frequencies

The dielectric constant of GaAs in the range 1.9-13 GHz has been determined from measurements of the fringing capacitance of bulk samples terminating a coaxial line. There is no indication of a large deviation from the low-frequency value recently reported by Larrabee and Hicinbothem, although there may be a small resonance effect near 10 GHz. © 1967 The American Institute of Physics.