oznax.blogg.se

The following video will provide design guidelines and a tutorial.įor the microtstrip patch antenna, the following design procedure can be used:

We will first focus on the basic patch design and then examine impedance matching techniques. Numerous reference books contain equations for antenna design for many types of antennas. In antenna design, it is common to select a topology and then lookup the design equations for that antenna. The general dimensions are /2, however due to the specific dynamics of the antenna and the fringing fields, the exact dimensions require more careful calculations. In this part of the workshop you will design a microstrip patch antenna. The basics of operation is to generate a magnetic field out of phase with an electric field with a ratio that impedance matches with the air (377 Ohms).Īt the bottom of this tutorial are three links to antenna basics and more detail on patch antenna theory. The theory of antenna operation can be seen in the following videos. © 1996 John Wiley & Sons, Inc.In this part of the workshop you will design a 0.95GHz patch antenna. Also examined are the effect of the finite thickness of the circular patch and the effect of the superstrate on the antenna's input impedance. Numerical results for the input impedance of a microstrip disk antenna are presented and compared with those obtained by others. The resulting waveguide cascading problem is then solved by the conservation of complex power technique (CCPT). The open‐region antenna problem is initially transformed into a closed‐region coaxial‐circular waveguide junction cascading problem by the introduction of a large circular cylindrical magnetic wall to enclose the whole antenna. Both the substrate and the superstrate are assumed to be uniaxial anisotropic. This Letter presents a waveguide modal analysis for evaluating the input impedance of a circular patch antenna fed by a centered coaxial transmission line. Input impedance of a center‐fed circular patch antenna covered by a uniaxial anisotropic superstrate Input impedance of a center‐fed circular patch antenna covered by a uniaxial anisotropic superstrate