研究目的
To develop a novel formulation of crosstalk that elucidates the perturbation effect of the generator circuit on the receptor circuit and to establish conditions for equivalence between crosstalk and field-to-wire coupling for radiated susceptibility testing in aerospace applications.
研究成果
The novel crosstalk formulation shows that under weak coupling, the matching condition for the generator circuit can be relaxed, allowing equivalence with field-to-wire coupling without prior knowledge of receptor loads. Validation through simulations confirms accuracy, and using 50-ohm terminations reduces forward power requirements, offering advantages for practical RS testing.
研究不足
The study is based on virtual experiments and specific test setups from aerospace standards; practical implementation requires further investigation into generator circuit design and extension to complex wiring harnesses. The analysis assumes weak coupling and specific incidence conditions, which may limit generalizability.
1：Experimental Design and Method Selection:
The study uses a frequency-domain formulation of crosstalk based on transmission line theory and full-wave simulations. It involves developing an augmented circuit representation to model the loading effect and validating equivalence through virtual experiments.
2：Sample Selection and Data Sources:
A canonical three-wire transmission line structure with specific dimensions (e.g., wire radius 0.5 mm, length 1 m, height above ground 50 mm) is used. Simulations are performed for different wire distances (5 mm and 20 mm) to vary coupling coefficients.
3：5 mm, length 1 m, height above ground 50 mm) is used. Simulations are performed for different wire distances (5 mm and 20 mm) to vary coupling coefficients.
List of Experimental Equipment and Materials:
3. List of Experimental Equipment and Materials: The primary tool is the Feko software (version 6.3) for full-wave simulations using the Method of Moments. No physical equipment is mentioned; the study is computational.
4：3) for full-wave simulations using the Method of Moments. No physical equipment is mentioned; the study is computational.
Experimental Procedures and Operational Workflow:
4. Experimental Procedures and Operational Workflow: The procedure includes deriving analytical expressions for crosstalk voltages and currents, setting up simulation parameters (e.g., frequency, wave angles), and comparing results from transmission line models and full-wave simulations for both field coupling and crosstalk scenarios.
5：Data Analysis Methods:
Data analysis involves comparing induced currents and voltages at terminations using TL-based predictions and full-wave simulation results to assess equivalence. Parameters like coupling coefficient and termination impedances are varied to evaluate conditions.
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