In this paper, a composite broadband dipole antenna printed with different conductivities is presented. The antenna is composed of two identical split ring resonators (SRRs) surrounding each arm of a dipole element. Each arm of the dipole and the SRRs are printed on the top and bottom sides of a thin dielectric substrate to give the antenna flexibility. The compact flexible antenna with overall dimensions of 74.8 mm × 10 mm × 0.254 mm (0.473λ ×0.063λ × 0.0016λ at 1.9 GHz) produces linearly polarized omnidirectional radiations. Characteristics of the antenna, including reflection coefficient, gain, and radiation efficiency to different conductivities, are investigated.
ACKNOWLEDGEMENT This work was supported in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2018R1D1A1A02086071) and in part by the Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korean government (MSIP) (No. 2017-0-00959, University ICT Basic Research Lab.This work was supported in part by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2018R1D1A1A02086071) and in part by the Institute for Information & Communications Technology Promotion (IITP) grant funded by the Korean government (MSIP) (No. 2017-0- 00959, University ICT Basic Research Lab.
