# Chapter 1 investigation report

Name/credit:

Date and source commit:

Notebook/model version and environment:

## Question and prediction

State the question, excitation, intended observable, and prediction before calculation.

## Model and parameters

Record the time convention, reference planes, exterior impedances, polarization,
frequency/sweep, resonance frequencies, channel strengths, and phase floor.
Explain which experiment uses the ideal sheet and which uses saved ridge data.

## Results

| Experiment | Frequency (THz) | Channel parameters | R | T | Meaningful t phase | Prediction met? |
| --- | --- | --- | --- | --- | --- | --- |
| Transparent | | | | | | |
| Electric-only | | | | | | |
| Balanced | | | | | | |
| Detuned | | | | | | |
| Custom | | | | | | |

Attach the response, phasor, and delay figures with axes, units, and captions.
Explain a transmission zero and a phase change at unit transmitted power.

## Consistency and saved full-wave comparison

Report the worst power/unitarity residuals and two-sided input/output power.
Explain why r=t=1/sqrt(2) fails as a general lossless two-port model.
Attach your calculation for the saved ridge row: geometry, indices, |t|^2,
flux-corrected T, and saved T. Cite the dataset and original phase references.
State whether a Maxwell solver was run in this investigation.

## Interpretation and next test

Which claims do the results support? Which physical assumptions limit them?
Propose one specific test for a physical geometry without presenting it as done.

## Reproduction and references

List source files, environment, commands, data files, audit, references, and
collaborator/AI assistance. Do not paste private credentials or local secrets.