Circularly Polarized Loop-Type Ground Radiation Antenna for IoT Applications

Abstract

Circularly polarized (CP) antennas are an attractive choice for wireless communication because of their reduced polarization loss factor and multi-path interference Circular polarization is also a desirable feature in mobile devices for global positioning system applications Moreover, we proposed a wideband CP monopole slot antenna using a square-shaped ground plane Electrically, small antennas of mobile devices suffer from several inherent problems, such as small bandwidth, high Q-factor, and low efficiency at smaller sizes Therefore, small antennas are often employed to excite the large ground plane of a mobile device for effective radiation.