Behavior of 2.4 GHz ISM bandpass filters of different materials by applying UWB pulses

Klunder, Christian; Brauer, F.; Haseborg, J.L. ter

doi:10.1109/emceurope.2009.5189714

Cited by 1 publication

(1 citation statement)

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“…The typical pulse shape of an UWB pulse measured inside the GTEM cell at a septum height h s=36 em and the pulse delivered by the pulse Another possibility to calculate the transfer function is obtained with the Fourier transform of the measured coupled signal divided by the Fourier transform of the UWB pulse on the input (comp. [8]). Figure 8 It can be seen that the coupled voltage of the PCB microstrip line with the lowest permittivity (R05880) is more than twice the value of the voltage on the line with FR4 or Rogers Taconic (R03320) substrate.…”

Section: B Measurement Setupmentioning

confidence: 93%

The influence of different PCB materials on the coupling behavior of high power electromagnetics

Brauer

Klunder

Haseborg

2009

2009 International Symposium on Electromagnetic Compatibility - EMC Europe

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For the development and protection of electronic systems, which may be used in a high power electromagnetic (HPEM) environment, the behavior concerning the coupling of electromagnetic pulses is of special interest. Due to the use of different PCB materials, especially for RF applications, the influence of the used substrates on the coupling behavior of HPEM pulses for microstrip lines is investigated in this contribution. The results are to assess statements about the boundary of a linear coupling behavior and the expected coupled signals into PCB structures in complex systems under HPEM conditions. behavior due to the influence of different PCB materials and possible nonlinear effects at high field strengths. II. COUPLING OF EXTERNAL HPEM FIELDS TO PCBsThe coupling of external electromagnetic fields to PCBs has been regarded in several publications, where in most cases a theoretical approach has been applied. In [4] a simple formulation of the expected voltages on a microstrip line has been developed. The typical structure of a microstrip line on a PCB is illustrated in figure 1. Figure 1. Shematic draft of a PCB trace with microstrip cross section A typical microstrip line over a ground plane (figure 1, (1)) is illustrated. Referred to [4] the effect of different permittivities of the PCB substrates on the amplitude of the coupled voltage has been assessed to maximum 12% based on equations for the terminal voltages for a lowfrequency approximation, which can be derived by

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Section: B Measurement Setupmentioning

confidence: 93%