Design and Simulation of the Inverted F Antenna for RFID Tags

Abstract

In this paper, an inverted F antenna works in the 5.8GHz frequency band is proposed. On the platform of Ansoft HFSS14 , the antenna’s return loss reaches -51.97dB at the center frequency 5.8GHz and the relative bandwidth is about 22.4％ when the return loss is less than -10dB. Also ,the size of the antenna is only 18mm*15mm. Compared with the existing antenna works in the same frequency band , the inverted F antenna proposed has a lower return loss and smaller physical size. The new designed antenna can be applied to the RFID system of road tolls and container management, which have certain values for application.

Reconfigurable planar inverted-F antenna for radio frequency identification tag and global positioning system applications

“…The general approach is to start from a given antenna geometry, often chosen according to the intended application which fixes for example the dimensions and the operating frequencies, and the addition of structures and elements to achieve the desired reconfiguration functionalities [4]- [7]. For our application, we have chosen the planar inverted-F antenna (PIFA) for its compactness, ease of design and integration, low manufacturing cost [8], and its suitability for our application. It consists of a radiating element of quarter wavelength generally excited by a coaxial probe, and connected to the ground plane by a shorting pin of type plan, languet or wired [9].…”