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The design and fabrication of a plasma limiter to protect communication systems | ||
| الکترومغناطیس کاربردی | ||
| Volume 10, Issue 1 - Serial Number 24, March 2022, Pages 99-107 PDF (1014.61 K) | ||
| Document Type: Original Article | ||
| Authors | ||
| aref bali* 1; Mohamad Reza Alizadeh Pahlavani2; Hosein fayazi3 | ||
| 1Assistant Professor, University of Electrical and Computer Complex, Malek Ashtar University of Technology, Tehran, Iran | ||
| 2Associate Professor, University of Electrical and Computer Complex, Malek Ashtar University of Technology, Tehran, Iran | ||
| 3Instructor, University of Electrical and Computer Complex, Malek Ashtar University of Technology, Tehran, Iran | ||
| Receive Date: 24 May 2021, Revise Date: 04 August 2021, Accept Date: 07 August 2021 | ||
| Abstract | ||
| The energy from electromagnetic pulses causes disruptions and sometimes failure in the performance of the electronic systems used in radars and communications equipment such as the ELINT system. The rate of influence of high-powered electromagnetic waves and their electric fields on the equipment depends on two parameters: the intensity of the electric field and the target coating method. The plasma is a means of protection against electromagnetic threats. When an electromagnetic pulse is propagated through a plasma limiter, the charge particles accelerate, and the magnetic field generated by the electromagnetic wave can change the state of the gas to plasma. In this paper, the design theory of a plasma limiter based on a new structure at 1.8 to 2.8 GHz is presented. By introducing various power generation sources, numerical analysis, simulation and optimization is carried out for the plasma limiter and the prototype of plasma limiter intended to protect the ELINT receiver in the frequency range of 1.8 to 2.8 GHz at 1200 and 1800 w is tested. The measured results show that the return loss is better than -10 dB at 1.8 to 2.8 GHz. After optimization, the value of h is obtained in 19 mm and the value of n is found to be about 46 mm, which in the constructed sample, we place it at 47 mm, exactly in the center. The laboratory results during high power pulses show an excellent agreement with respect to the finite element method. | ||
| Keywords | ||
| Electromagnetic waves; protection systems; High power pulse; Plasma Limiter | ||
| References | ||
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