Printed circuit antennas on cylindrical substrates

In this paper the fundamental properties of printed circuit antennas on cylindrical substrates are investigated. Examples are given in terms of printed strip dipoles. A Pocklington type integral equation is solved numerically for the antenna current distribution and a variety of results is presented for input impedance computations with parameters of importance being cylinder size, substrate thickness and substrate permittivity. The radiated field is also computed via steepest descent methods taking into consideration the substrate surface wave effects.