Using approximations for the equivalent circuit parameters of a small loss dielectric post in a wave-guide, the dielectric constant and loss tangent of bird feather quills are determined from measurements at 9.3 GHz. From an average relative dielectric constant of about 2.0, it is predicted that a typical chicken quill may be excited as an end fire dielectric rod antenna in the frequency range 30-60 GHz. Results for geese and pigeons are also included.
National Research Council of Canada. Radio and Electrical Engineering Division
Report (National Research Council of Canada. Radio and Electrical Engineering Division : ERB), no. ERB-845.