A novel electromagnetic bandgap design applied for suppression of printed circuit board electromagnetic radiation

2019 ◽  
Vol 30 (1) ◽  
Author(s):  
Panpan Zuo ◽  
Yan Li ◽  
Er‐Ping Li ◽  
Tao Song ◽  
Mengjun Wang ◽  
...  
Keyword(s):  
Electromagnetic Radiation ◽  
Printed Circuit Board ◽  
Circuit Board ◽  
Electromagnetic Bandgap ◽  
Printed Circuit

scholarly journals A New Reconfigurable Filter Based on a Single Electromagnetic Bandgap Honey Comb Geometry Cell

Electronics ◽  
2021 ◽  
Vol 10 (19) ◽  
pp. 2390
Author(s):  
Andre Tavora de Albuquerque Silva ◽  
Claudio Ferreira Dias ◽  
Eduardo Rodrigues de Lima ◽  
Gustavo Fraidenraich ◽  
Larissa Medeiros de Almeida
Keyword(s):  
Communication Systems ◽  
Printed Circuit Board ◽  
Unit Cell ◽  
Circuit Board ◽  
Center Frequency ◽  
Electromagnetic Bandgap ◽  
Printed Circuit ◽  
Varactor Diodes ◽  
Intelligent Communication ◽  
Rejection Band

This work presents a new unit cell electromagnetic bandgap (EBG) design based on HoneyComb geometry (HCPBG). The new HCPBG takes a uniplanar geometry (UCPBG—uniplanar compact PBG) as a reference and follows similar design methods for defining geometric parameters. The new structure’s advantages consist of reduced occupied printed circuit board area and flexible rejection band properties. In addition, rotation and slight geometry modification in the HCPBG cell allow changing the profile of the attenuation frequency range. This paper also presents a reconfigurable unit cell HCPBG filter strategy, for which the resonance center frequency is shifted by changing the gap capacitance with the assistance of varactor diodes. The HCPBG filter and reconfiguration behavior is demonstrated through electromagnetic (EM) simulations over the FR1 band of the 5G communication network. Intelligent communication systems can use the reconfiguration feature to select the optimal operating frequency for maximum attenuation of unwanted or interfering signals, such as harmonics or intermodulation products.

scholarly journals Algorithm for recovery of electromagnetic radiation sources from a printed circuit board in the near zone.

2020 ◽  
Vol 2020 (12) ◽  
Author(s):  
I.V. Skvortsov ◽  
◽  
R.R. Latypov ◽  
Keyword(s):  
Electromagnetic Radiation ◽  
Printed Circuit Board ◽  
Near Field ◽  
Reconstruction Algorithm ◽  
Circuit Board ◽  
Tikhonov Regularization Method ◽  
Lasso Regression ◽  
Printed Circuit ◽  
Radiation Sources ◽  
Near Zone

This article presents an algorithm for recovering radiation sources from a printed circuit board in the near field. The model of the printed circuit board is represented by the Hertz dipoles, the equations for which are known. The basis of the reconstruction algorithm is LASSO regression, which allows one to recover the parameters of radiation sources with a higher accuracy than the classical Tikhonov regularization method widely used in similar problems. To use the reconstruction algorithm, it is necessary to have experimental data on electromagnetic radiation from the printed circuit board. Such data can be obtained using a planar scan method. This article presents the experimental results of reconstructing radiation sources from a printed circuit board using the proposed algorithm.

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