A Cpw-fed Dual-Band Dual-Pattern Radiation Patch Antenna Based on TM01 and TM02 Mode

In this paper, a novel dual-band dual-pattern radiation patch antenna is proposed. The structure adopts the coplanar waveguide feed integrated on the ground plane to realize the design of dual-band dual-pattern radiation. By carving branches around the radiation patch and changing the current path and direction of the patch surface, more resonant frequency points are excited. The measured results show that the design can produce resonance at two frequency points of 4.6 GHz (TM01 mode) and 5.2 GHz (TM02 mode), and the peak gain is 2.23 dBi and 4.40 dBi respectively. The E-plane dual directional radiation is maximum at ±45°.