What’s on the Reflection & VSWR poster
A 6-row table: Reflection |Γ| · VSWR · Return loss.
Reflection coefficient, standing wave ratio and return loss all describe one thing.
- 0 — 1.00 — Infinite, perfect
- 0.1 — 1.22 — 20 dB
- 0.2 — 1.50 — 14 dB
- 0.33 — 2.00 — 9.5 dB
- 0.5 — 3.00 — 6 dB
- 1 — Infinite — 0 dB, total
Γ = (Z_L − Z₀)/(Z_L + Z₀). A VSWR of 2 sounds poor but still delivers about 89% of the incident power to the load.
Questions about the Reflection & VSWR poster
- What’s on the Reflection & VSWR poster?
- A 6-row table: Reflection |Γ| · VSWR · Return loss. Reflection coefficient, standing wave ratio and return loss all describe one thing. 0 — 1.00 — Infinite, perfect; 0.1 — 1.22 — 20 dB; 0.2 — 1.50 — 14 dB; 0.33 — 2.00 — 9.5 dB; 0.5 — 3.00 — 6 dB; 1 — Infinite — 0 dB, total. Γ = (Z_L − Z₀)/(Z_L + Z₀). A VSWR of 2 sounds poor but still delivers about 89% of the incident power to the load.
- Who is the Reflection & VSWR poster for?
- Reflection & VSWR belongs to the Electrical Engineering section rather than to a school year, because engineering is not something one grade owns. Anyone learning electromagnetics can pin it up — a beginner, a student mid-course, or someone revising years later.
- When should you use the Reflection & VSWR poster?
- Use it to translate a VSWR reading into return loss and into power actually delivered. A wall chart earns its place by being glanceable from where the work is happening, so Reflection & VSWR belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.
- What other posters go with Reflection & VSWR?
- Antenna Fundamentals, Antenna Types and Boundary Conditions sit alongside Reflection & VSWR in the Electrical Engineering section. Printed together they make a wall rather than a single sheet, which is how a reference set actually gets used.Antenna FundamentalsAntenna TypesBoundary Conditions
- Is the Reflection & VSWR poster free to download and print?
- Yes. Reflection & VSWR downloads as a free PDF with no account, no email and no watermark, like everything else in the Electrical Engineering section. Print as many copies as you like for a home, a classroom, a library or a tutoring group; reselling the file is the only thing the licence rules out.Read the licence
- What size does the Reflection & VSWR poster print at?
- Reflection & VSWR is a vector PDF laid out for US Letter, and prints on A4 with Fit to page — the same file, no separate download. Because every mark on it is drawn rather than photographed, it stays sharp enlarged to A3, A2 or A1 at a copy shop. Colour carries emphasis only, so a greyscale print of Reflection & VSWR loses nothing.Printing guide
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