A Butterfly-Shaped Wideband Microstrip Patch Antenna for Wireless Communication

Abstract EN

A novel butterfly-shaped patch antenna for wireless communication is introduced in this paper.

The antenna is designed for wideband wireless communications and radio-frequency identification (RFID) systems.

Two symmetrical quasi-circular arms and two symmetrical round holes are incorporated into the patch of a microstrip antenna to expand its bandwidth.

The diameter and position of the circular slots are optimized to achieve a wide bandwidth.

The validity of the design concept is demonstrated by means of a prototype having a bandwidth of about 40.1%.

The return loss of the butterfly-shaped antenna is greater than 10 dB between 4.15 and 6.36 GHz.

The antenna can serve simultaneously most of the modern wireless communication standards.