# rfx Gallery

Channel: release; package: 1.8.0; source: 7d1e97331656dd74ad0f5471653ac0c5effdff70

Page: https://remilab.ai/rfx/versions/v1.8.0/gallery/
Source: https://github.com/bk-squared/rfx/blob/7d1e97331656dd74ad0f5471653ac0c5effdff70/docs/public/gallery/index.mdx

A visual tour of structures, fields, outputs, and differentiable calculations.
The slab and waveguide pages state their reference comparisons and supported
gradient scope. The patch page is explicitly diagnostic because its stored port
setup does not pass current preflight; its plots and derivative are not RF
validation. Read the status and limits on each page before reusing a number.

  
### Dielectric Slab

    [a](https://remilab.ai/rfx/versions/v1.8.0/gallery/multilayer_fresnel/)
[Reflection and transmission of a dielectric slab vs the exact Fresnel curves](https://remilab.ai/rfx/versions/v1.8.0/gallery/assets/multilayer_fresnel/rt_overlay.png)

    A plane wave at normal incidence on a lossless dielectric slab. Reflection and transmission track the exact transfer-matrix curves to ~1%, and `jax.grad` returns `dT/dd` matching the closed-form derivative. [See it →](https://remilab.ai/rfx/versions/v1.8.0/gallery/multilayer_fresnel/)
  
  
### Patch Antenna Diagnostics

    [a](https://remilab.ai/rfx/versions/v1.8.0/gallery/patch_antenna/)
[Patch-antenna S11 diagnostic from a setup that fails preflight](https://remilab.ai/rfx/versions/v1.8.0/gallery/assets/patch_antenna/s11_db.png)

    File-format, plotting, and AD/FD artifacts from a port setup that does not pass current preflight. The plotted RF values are not validation evidence. [Read the limits →](https://remilab.ai/rfx/versions/v1.8.0/gallery/patch_antenna/)
  
  
### Rectangular Waveguide

    [a](https://remilab.ai/rfx/versions/v1.8.0/gallery/waveguide_wr90/)
[TE10 mode propagating down a WR-90 rectangular waveguide](https://remilab.ai/rfx/versions/v1.8.0/gallery/assets/waveguide_wr90/field_te10.png)

    The TE10 dominant mode down a WR-90 X-band guide. |S11|/|S21| match the exact matched empty-guide answer at the CPML floor, and `jax.grad` differentiates the transmission through a dielectric fill. [See it →](https://remilab.ai/rfx/versions/v1.8.0/gallery/waveguide_wr90/)
  

All three cases computed with rfx 1.6.5 · 1eb551b