Optimized shape of a parametric designed HF loop antenna

The design of loop antennas is no longer limited to circular and square shapes. Adapting the shape of the antenna to its environment is needed to increase the reliability of the application, especially when we have to place the antenna in an atypical environment or orientation. We will evaluate an HF loop antenna which differs in shape from commercially available antennas. This work demonstrates how the knowledge of the designer and the use of an optimization tool can create an antenna shape with specific goals. The optimization tool combines MATLAB^® and CST EM Studio^®. The dedicated antenna shape is implemented in a practical environment, e.g., a metallic drawer for medication storage. The results of the simulations are presented and are verified experimentally. These measurements confirm the simulation results, leading to the realisation of a very reliable, dedicated RFID solution with an atypical antenna shape.