Performance enhancement of Continuous Transverse Stub(CTS) antenna array with monopole termination

The modern antenna design structure requires low-loss, low-dispersion, dimensional robustness and design flexibility. Continuous Transverse Stub (CTS) is an antenna technology that offers greater tunable bandwidth than waveguide or Microstrip patch antennas. This paper proposes a newer design of Continuous Transverse Stub (CTS) antenna. The two major problems arises, while designing large bandwidth antennae are size of the antenna and presence of side-lobe levels. When a concept is introduced, there will be sustainable improvement in its conceptual design. In this way the CTS antenna has undergone several developments. The Co-axial CTS antenna is a structure with Co-axial waveguide skeleton, which runs along the length of the antenna. Radial stubs that are in the form of circular plates separated by a dielectric medium, interrupt the waveguide at regular intervals. This design not only improves the band of operation, but also reduces the total length of the antenna. It is seen that radiating efficiency of a stub is not high, so stubs should be connected for good efficiency. The proposed antenna arrays are mainly suitable for wireless OFDM network application. Using the simulation tool CST MICROWAVE STUDIO SUITE 2008, the various properties of the proposed model were analyzed by finite integral method.