Abstract
The research of transient electromagnetic pulse emission monitoring technology (TEMPEST) protection is essential. Based on microstrip bandstop filter (MSBSF), a method to prevent electromagnetic information leakage of high-power transmission lines is proposed in this paper. The MSBSF with a high insertion loss and carrying large current in the frequency of 2.40–2.49 GHz is designed, fabricated, and experimentally measured. The fabricated MSBSF with the insertion loss of 38 dB at 2.41–2.49 GHz can carry a current greater than 10A and withstand a voltage of 1.7 kV. Compared with the traditional electromagnetic interference (EMI) filter, the MSBSF has the advantages of preventing conducted electromagnetic information leakage in the high-frequency bands, carrying greater current subject to higher voltage, and possessing lighter weight. The MSBSF may be used to prevent the leakage of high-frequency electromagnetic information of high-power transmission lines.
Highlights
With the rapid development of information and communication technology, electromagnetic information leakage associated with telecommunication devices, such as transmission lines, brings increasingly strong impacts on information security
A high insertion loss microstrip bandstop filter (MSBSF), which can be applied to high-power transmission lines, is designed
According to the structure of the traditional branch load band stop filter, the equivalent structure and the unequal-width technology of the parallel coupled microstrip line are used to realize the filter can carry large current and have high insertion loss by increasing the filter order. e MSBSF is composed of n parts, and each part consists of a parallel coupling line with an open stub
Summary
With the rapid development of information and communication technology, electromagnetic information leakage associated with telecommunication devices, such as transmission lines, brings increasingly strong impacts on information security. Transient electromagnetic pulse emission monitoring technology (TEMPEST) is known for using reverse technology to collect and restore the transmitting source signals and preventing potential security threats of information equipment [1]. Many methods of TEMPEST protection have been achieved, for example, low-radiation equipment [7,8,9,10], noise interference [11], electromagnetic shielding [12,13,14], filtering technology [15], and optical fiber technology [16, 17]. Low-radiation equipment, noise interference, electromagnetic shielding, and optical fiber technology mainly prevent electromagnetic information leakage caused by electromagnetic radiation. Filtering technology is the only way to prevent electromagnetic information leakage caused by conduction
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
