Quarter-wave Impedance Transformer

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Request for Broadband/Narrowband Quarter-Wave Transformer Model (.mph File)

Dear COMSOL Community, I hope you're doing well. I'm currently working on a project involving quarter-wave impedance transformers and would greatly appreciate your help. I'm looking for a COMSOL .mph file that demonstrates both narrowband (single-section) and broadband (multi-section or tapered) λ/4 transformer designs operating around 2.5 GHz on an FR4 substrate (εᵣ = 4.4, 1.6 mm thick), matching 50 Ω to 100 Ω. If you have an existing model or could share one, it would help me validate my S-parameter results, Smith chart plots, and field distributions. I'd be happy to credit your contribution and share my findings in return. Please let me know if you can assist or point me to relevant resources..

Thank you for your time and expertise! Best regards,


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