Open AccessDesign of a Small-size Broadband Circularly Polarization Microstrip Antenna
Author(s) -
Haitao Sun,
Changsheng Li,
Tianye Qiu
Publication year - 2019
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 - 10.1088/1742-6596/1237/3/032071
Subject(s) - ultra high frequency , radio frequency identification , frequency band , wireless , antenna (radio) , electronic engineering , broadband , microstrip antenna , electromagnetic interference , engineering , antenna gain , radio frequency , electrical engineering , telecommunications , antenna factor , computer science , computer security
The information transmission of wireless system in coal mine has been faced with severe challenges, and the traditional wireless measurement method has the problems of low anti-interference ability and low reliability. The wireless system based on the temperature, humidity and harmful gas measurement of ultra-high frequency radio frequency identification (UHF RFID) technology can effectively improve the reliability of the system and enhance the safety of the operation in the coal mine. In order to detect the status in the coal mines in real time, this paper designs an ultra-high frequency micro-strip antenna with high gain, wide frequency band and circular polarization. Through the simulation, it can show the influence of different parameters on the antenna performance and obtain the optimal design size of the antenna with center frequency of 915MHz. Finally, through the experiment, it can obtain the micro-strip antenna with the gain of 3.84dBi and the circular polarization frequency band of 75MHz which meets the application of the ultra-high frequency radio frequency identification system in the coal mines.