RFID Reader with Miniaturized Horn Patch for Microwave Frequency Applications at 5.8 GHz

This paper contemplates potential outcomes to develop an adaptable, lightweight and precisely vigorous RFID reader for the applications over the microwave frequency range of 5.8 GHz. The dimensions of the proposed antenna are 20mm$\times$ 18mm$\times$ 1.6mm. Two annular slots were inserted in the patch to reduce the dimensions of the antenna which results in the formation of horn structure along with the circular patch. The patch antenna is fabricated over the surface called FR-4 epoxy. The ground plane of the antenna is made partial like open cone structure. This help antenna to achieve high gain along with the annular slots and reduced dimensions. The antenna attains the reflection coefficient of -21.97 dB at 5.8 GHz. The proposed antenna achieves the peak gain of 2.97 dBi at 6.2 GHz. The efficiency of the antenna comes out to be 63.97% at 5.8 GHz and it increases with increase in the frequency. The innovated antenna arrangements permit coordination with portable RFID application devices.