Open AccessDesign of UHF Tag Antenna Based on Internet of Things
Author(s) -
Cao Huajuan
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1486/2/022042
Subject(s) - antenna measurement , antenna factor , coaxial antenna , monopole antenna , antenna tuner , antenna (radio) , dipole antenna , loop antenna , antenna efficiency , computer science , electrical engineering , electronic engineering , telecommunications , engineering
This paper presents a detailed study of UHF RFID system on tag antenna design and performance measure methods based on antenna design knowledge and electromagnetic theory. The paper analyzes the characteristics of UHF tag antenna. The paper provides the compact UHF antenna that covers 840MHz∼965MHz. The impedance of the antenna is easy to adjust. The tag antenna has a good performance which satisfies the design requirements. The paper studies the effect of the metallic ground on the tag antenna performance and designs a low-profile anti-metal UHF tag antenna. An antenna with a pair of F-slots is proposed. The antenna can achieve the good complex impedance matching between the antenna and chip. The simulation results show the anti-metal antenna has good working bandwidth from 840MHz to 965MHz and return loss S 11 <-10dB.