Free shielding tool · preliminary estimate
Compare a far-field solid-sheet shielding estimate with the effect of one seam or aperture, while keeping the limiting factor and calculation limits visible.
Field verification and shielding design required
The calculator uses a far-field plane-wave Schelkunoff estimate for a solid sheet and an aperture estimate, then shows the lower result. It makes the seam or aperture visible because a high material figure alone is not an enclosure result.
It does not model near-field coupling, enclosure geometry, multiple openings, seams, doors, gaskets, louvers, penetrations, bonding, coating condition, corrosion, workmanship, frequency sweeps, or a measured room or enclosure result. RF mesh is aperture-only here, not a solid-sheet calculation.
This far-field, one-opening comparison is an educational planning aid, not an enclosure measurement, compliance result, or engineering design. It omits the seams, doors, penetrations, bonding, workmanship, geometry, frequency range, and site conditions that can control real shielding performance. Confirm the project design and current test plan with a qualified RF shielding professional.
Open the source material and verify the requirements or values that apply to your situation.
Questions to verify
No. This is an early planning and comparison aid, not a construction, procurement, compliance, or final engineering specification. A qualified RF shielding professional must establish the project design and verification plan.
The tool reports the lower of the illustrative material and one-opening estimates. A seam, penetration, door, louver, or other opening can dominate real leakage, so a material number is not a guarantee of enclosure performance.
No. IEEE 299-2006 is inactive-reserved. This calculator does not claim certification or a current standard result; use the applicable current test plan and field verification for the project.
Longlead flags public projects that may need RF shielding scope before the need becomes a named buying event: on major federal projects, typically 9–18 months before the GC buys out your scope.
See Longlead for shieldingFree shielding tool · preliminary estimate
Compare a far-field solid-sheet shielding estimate with the effect of one seam or aperture, while keeping the limiting factor and calculation limits visible.
Field verification and shielding design required
The calculator uses a far-field plane-wave Schelkunoff estimate for a solid sheet and an aperture estimate, then shows the lower result. It makes the seam or aperture visible because a high material figure alone is not an enclosure result.
It does not model near-field coupling, enclosure geometry, multiple openings, seams, doors, gaskets, louvers, penetrations, bonding, coating condition, corrosion, workmanship, frequency sweeps, or a measured room or enclosure result. RF mesh is aperture-only here, not a solid-sheet calculation.
This far-field, one-opening comparison is an educational planning aid, not an enclosure measurement, compliance result, or engineering design. It omits the seams, doors, penetrations, bonding, workmanship, geometry, frequency range, and site conditions that can control real shielding performance. Confirm the project design and current test plan with a qualified RF shielding professional.
Open the source material and verify the requirements or values that apply to your situation.
Questions to verify
No. This is an early planning and comparison aid, not a construction, procurement, compliance, or final engineering specification. A qualified RF shielding professional must establish the project design and verification plan.
The tool reports the lower of the illustrative material and one-opening estimates. A seam, penetration, door, louver, or other opening can dominate real leakage, so a material number is not a guarantee of enclosure performance.
No. IEEE 299-2006 is inactive-reserved. This calculator does not claim certification or a current standard result; use the applicable current test plan and field verification for the project.
Longlead flags public projects that may need RF shielding scope before the need becomes a named buying event: on major federal projects, typically 9–18 months before the GC buys out your scope.
See Longlead for shielding