A Simple Model to Compute the Characteristic Parameters of a Slotted Rectangular Microstrip Patch Antenna

Electronics

Francisco López-Giraldo¹  Oscar Ossa-Molina² 

[1] Department of Electronics and Telecommunications Engineering, Instituto Tecnológico Metropolitano, Medellín 050013, Colombia;Electrical Department, Institución Universitaria Pascual Bravo, Medellín 050001, Colombia;

关键词: microstrip antennas;    slot antennas;    reflection coefficient;    antenna analysis;    antenna measurement;    antenna theory;   

DOI  :  10.3390/electronics11010129

来源: DOAJ

【 摘 要 】

In this study, we developed an analytical model of slot-loaded rectangular microstrip patch antennas based on the simulation results by varying slot parameters. The dominant resonant frequency predicted by such a model is in strong agreement with the experimental results measured at several locations of slot-loaded rectangular microstrip patch antennas. The model enables a reliable and quick computation of the resonant frequency, which generally follows a harmonic behavior that nearly resembles the resonant frequency of a microstrip antenna without a slot, which can be related to a small change in the impedance caused by the slot position. Results showed a good agreement between simulations and measurements for all the slot positions. Mathematical analytic functions to describe the changes in specific characteristic parameters of the slot-loaded rectangular microstrip patch antennas are also included.

【 授权许可】

Unknown