PROJECT TITLE :

Bandwidth Enhancement of a Single-Feed Circularly Polarized Antenna Using a Metasurface: Metamaterial-based wideband CP rectangular microstrip antenna.

ABSTRACT:

Wireless systems manufacturers desire a coffee-profile, wideband, circularly polarized (CP) antenna. Typically, a single-feed CP microstrip antenna (CPMA) features a simple configuration however is hindered by a narrow, three-dB axial ratio (AR) bandwidth. The bandwidth of a multiple-feed CPMA will be enhanced but requires a sophisticated and larger feeding network. Many techniques are employed to boost AR bandwidth, like using dual-feed, network-based mostly structures [1], stacked patches [2]?[three], array antennas with sequential feeding network [four], and multilayered structures [five]. But, these CP antennas are primarily based on multiradiating patches or complicated feeding structures.