BAI Yukun,LI Jie.Dual-band terahertz antenna based on a novel photonic band gap structure[J].Optoelectronics Letters,2023,(11):666-672 Dual-band terahertz antenna based on a novel photonic band gap structure Author Name Affiliation BAI Yukun  Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Optoelectronic Devices and Communication Technology, Ministry of Education, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China  LI Jie  Tianjin Key Laboratory of Film Electronic and Communication Devices, Engineering Research Center of Optoelectronic Devices and Communication Technology, Ministry of Education, School of Integrated Circuit Science and Engineering, Tianjin University of Technology, Tianjin 300384, China  Abstract:       In this paper, a novel dual-band photonic band gap (PBG) structure was proposed and applied to a dual-band microstrip antenna. The antenna resonates at 1.267 THz and 1.502 THz, exhibiting reflection coefficients of ?58.177 dB and ?49.462 dB, and gains of 3.173 dBi and 5.232 dBi, respectively. Compared with the microstrip antenna based on the homogeneous silicon substrate, the designed dual-band antenna based on the novel PBG structure shows improved impedance matching, radiation efficiency, and gain. The paper simulated and analyzed the impacts of different filling dielectric materials and the variations of dimensions, position, period, and corrugation depths of the dual-band PBG structure on the resonances of the antenna. It is expected that the proposed novel dual-band PBG structure has great application potentials, and such cancer diagnosis is done by utilizing the radiation characteristics of the antenna. Hits: 107 Download times: 0 View Full Text    Download reader