Magnetic Shutter Mechanical Antenna for Cross-Media Communication

LI Na; SHAN Yuyu; BAO Jianqiang; FENG Hongzhang; ZHANG Yiqun; LIU Guo

doi:10.23919/cje.2023.00.132

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Article Navigation > Chinese Journal of Electronics > 2024 > Accepted Manuscript

Na LI, Yuyu SHAN, Jianqiang BAO, et al., “Magnetic Shutter Mechanical Antenna for Cross-Media Communication,” Chinese Journal of Electronics, vol. x, no. x, pp. 1–11, xxxx doi: 10.23919/cje.2023.00.132

Citation:

Na LI, Yuyu SHAN, Jianqiang BAO, et al., “Magnetic Shutter Mechanical Antenna for Cross-Media Communication,” Chinese Journal of Electronics, vol. x, no. x, pp. 1–11, xxxx doi: 10.23919/cje.2023.00.132

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Magnetic Shutter Mechanical Antenna for Cross-Media Communication

doi: 10.23919/cje.2023.00.132

LI Na^{1
,
,},
SHAN Yuyu^1
,,
BAO Jianqiang^1
,,
FENG Hongzhang^1
,,
ZHANG Yiqun^1
,,
LIU Guo^2
,

1.
The Key Laboratory of Electronic Equipment Structure Design, Ministry of Education, Xidian University, Xi’an 710071, China
2.
Southwest China Research Institute of Electronic Equipment, Chengdu 610036, China

More Information

Author Bio:
Na LI received the B.S., M.S., and Ph.D. degrees at the School of Mechano-Electronic Engineering in Xidian University, Xi’an, China. She has been a professor and researcher at the Key Laboratory of Electronic Equipment Structure Design of the Ministry of Education, Xidian University, Xi’an, China, since 2012. Her current research interest includes microwave & RF applications and mechanical antennas. (Email: lina@mail.xidian.edu.cn)

Yuyu SHAN received the B.S. degree in Henan University of Science and Technology, Luoyang, China, in2021. She is currently pursuing the M.S. degree at Xidian University, Xi’an, China. Her current research interests include mechanical antenna and microstrip antenna. (Email: shanyu0309@163.com)

Jianqiang BAO received the B.S. degree in Northeast Forestry University,Harbin, China,in 2020.He received the M.S. degree at Xidian University, Xi’an, China. His research interests include mechanical antenna and microstrip antenna. (Email: 18800466106@163.com)

Hongzhang FENG was born in 1997. He graduated from Hunan University of Science and Technology with a bachelor’s degree in 2020. He is currently pursuing a master’s degree at Xidian University. His research interests focus on many-body dynamics. (Email: 3479925673@qq.com)

Yiqun ZHANG received the B.S. and Ph.D. degrees in mechatronic engineering from Xidian University, Xi’an, in 2006 and 2013, respectively. From 2013 to 2019, he was a Lecturer and anAssociate Professor with the School of Mechanical-Electrical Engineering, Xidian University. His research interests include electromagnetic analysis and dynamics analysisand control of the fexible mechanism. (Email: yiqunzhang@xidian.edu.cn)

Guo LIU received the PhD degree inradio physics from the Xidian University of China, Xi’an, in 2015. From 2014 to 2015, he was with the research group in the EMC lab at Pennsylvania State University, USA, as a Visiting PhD student. He is currently an Engineer in the Electronic Information Control Laboratory, Chengdu, China. His research interests include antennas and passive detection. (Email: liuguosgg@hotmail.com)
Corresponding author: Email: lina@mail.xidian.edu.cn
Received Date: 2023-04-17
Accepted Date: 2024-03-11

Available Online: 2024-04-13

Abstract

Abstract

In low-frequency cross-media communication systems, traditional mechanical antennas have problems such as limiting the upper limit of operating frequency due to motor speed, waveform distortion, and limiting transmission rate due to modulation methods. Then, we designed a new magnetic shutter type mechanical antenna. It is designed based on the radiation equation of a rotating magnetic dipole, combined with the principle of relative motion between the magnetic dipole and the high permeability shutter material. By relying on the shutter structure rotation, the magnetic field of the spherical permanent magnet array is intermittently shielded, generating a low-frequency magnetic induction signal that is multiplied by the motor speed.The entire antenna system uses a cross array of spherical permanent magnets with two evenly distributed magnetic poles and a two-dimensional signal modulation method that combines frequency modulation and amplitude modulation, so it has high radiation intensity and transmission rate in the ultra-low frequency band. Experimental results show that when the motor speed is n r/s, the operating frequency of the mechanical antenna can reach 4nHz, and the signal amplitude measured at 5 m is 50 mV, which is about 3.5 nT. Compared with the current mechanical antenna of the same volume, its signal radiation intensity is stronger.
- Low frequency communication,
- Mechanical antenna,
- Rotating magnetic shutter,
- Signal frequency multiplication,
- Sinusoidal signal

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References(30)

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