摘要

A novel method, named the resistors and inductors loading, is proposed in this paper to reduce the back radiation of the folded PIFA antenna with finite ground. With different loading schemes (i.e., resistors loading, inductors loading, and resistors and inductors loading), variable reduced back radiation and gain can be achieved. However, there is a compromise between the gain and back radiation and it can be chosen based on the specified applications. A prototype with resistors loading is fabricated and measured to verify the proposed design. Measured results agree well with the simulated results.