Pythagorean Tree Fractal for Multiband Patch Antenna.

摘要

Miniaturization of satellite systems demands development of optimized miniature electronic components. Use of simplistic multiband antennas is becoming a pressing issue. Microstrip patch antennas are quote commonly used for their low structural profile, robust features and ease of production. However, very often patch antennas face narrow bandwidth and low power handling. This paper, aims at developing a multiband patch antenna using fractal mathematics for structural modifications. The design presented in this paper is based on a Pythagorean equations. The model uses,teflon (dielectric constant = 2.1) for substrate and metallize using perfect electric conductor for simulation purposes. In the base antenna resonance is achieved at 8GHz, while in the first iteration of fractal progression, two resonances at 8.2 GHz and 9.2 GHz are achieved. Broadside radiation pattern is not the same as base antenna, however this problem can be solved employing an array configuration.