A generalized solution to a class of printed circuit antennas
Abstract
The theory and design of antennas excited by a microstrip transmission line or by a gap generator are examined. The antennas and the strip transmission line may be embedded inside or printed on the substrate. A theortical approach is implemented which accounts accurately for the physical effects involved including surface waves. The Green's function was obtained by synthesizing the fields of Hertzian dipoles which are oriented in arbitrary directions and which are printed on or embedded in the substrate. The method of solution is based on solving the Pocklington integral equation by employing the method of moments with proper choice of expansion and testing functions. The excitation mechanism is taken into account effectively by considering it as part of the antenna. The current distribution is obtained both on the transmission line and the printed antennas by matrix inversion. The method accounts for conductor thickness and for arbitrary substrate parameters. As an example, printed strip dipoles excited by a transmission line embedded in the substrate or by a voltage gap generator are considered.
- Publication:
-
Ph.D. Thesis
- Pub Date:
- 1984
- Bibcode:
- 1984PhDT........45K
- Keywords:
-
- Antenna Design;
- Microstrip Transmission Lines;
- Printed Circuits;
- Current Distribution;
- Dipole Antennas;
- Excitation;
- Green'S Functions;
- Impedance;
- Integral Equations;
- Surface Waves;
- Electronics and Electrical Engineering