Semiconductor Optoelectronics, Volume. 43, Issue 6, 1114(2022)
Design of Circularly Polarized Terahertz Antenna Based on Fabry-Perot Cavity
In order to meet the needs of high bandwidth and circularly polarized communication in future wireless communication, a circularly polarized terahertz antenna based on a Fabry-Perot cavity is proposed. The antenna adopted a quasi-optical waveguide feeding mode, the circular waveguide was cut at 45° to realize the linear-circular polarization conversion of the antenna, and the partial reflecting surface of the dielectric material was used to improve the gain of the antenna. The simulation analysis shows that the maximum gain of the antenna is 14.4dBic at 228GHz, the impedance bandwidth (S11<-10dB) is 40GHz, the 3dB gain bandwidth and the axial ratio bandwidth are 18 and 27GHz respectively, and the overlapping bandwidth of the three is 18GHz. The antenna has the advantages of good directivity, high bandwidth and circular polarization in the entire working frequency band, and has high reference and practicability in terahertz/millimeter wave wireless communication.
Get Citation
Copy Citation Text
PAN Wu, ZHANG Bin, LI Haizhu, LI Yongrui. Design of Circularly Polarized Terahertz Antenna Based on Fabry-Perot Cavity[J]. Semiconductor Optoelectronics, 2022, 43(6): 1114
Category:
Received: Jun. 22, 2022
Accepted: --
Published Online: Jan. 27, 2023
The Author Email: