Broadband Monopole Antenna Design with Integrated CB-CPW, SIW and Slots Structure

A novel broadband monopole antenna with integrated CB-CPW (conductor-backed coplanar waveguide), SIW (substrate integrated waveguide) and slots structure is presented. The three structures can expand the bandwidth effect, and the coupling is more complex. The combination of the three structures can achieve the desired effect more effectively.
$0.985\ \lambda_{0}\times 0.985\ \lambda_{0}\times 0.027\ \lambda_{0}$
(
$\lambda_{0}$
is the free-space wavelength at 8.205 GHz). The simulation results show that the antenna has a 10 dB bandwidth of 2.41 GHz (7 GHz – 9.41 GHz), a relative bandwidth of 29.37%, and its maximum gain was 3.88 dBi at 10.6 GHz. The proposed design had relatively high reflection coefficient, wide bandwidth and high performance.