V-Shaped Asymmetric Slit Patch Antenna for Wireless Applications Loaded with Dual Complementary Split Ring Resonators

A highly miniaturized dual CSRR loaded square patch antenna with asymmetrical slits at diagonal locations is presented in this work. This compact antenna is useful for wireless applications in X band frequency range. This simulated patch antenna has two CSRR unit cells on a square patch to improve axial ratio bandwidth, which is required for circular polarization. It has an impedance bandwidth of 15.35% over the frequency of 10.2 GHz to 11.9 GHz (1700 MHz), which covers the X band frequency range for satellite and wireless applications. It also has circular polarization from 10.55 GHz to 11 GHz with an axial ratio bandwidth percentage of 4.65, which covers the fixed satellite services application. The simulated antenna has an average gain of 5.5 dBi in the operating frequency range.