Questions about the Waveguide Modes poster

What’s on the Waveguide Modes poster?

A definition and 6 facts worth remembering. A hollow waveguide carries TE and TM modes above a cutoff frequency, and nothing at all below it. No TEM mode: one conductor cannot support it; TE₁₀ is the dominant rectangular-guide mode; Cutoff for TE₁₀ is c/2a, set by the wide wall; Below cutoff the field decays instead of travelling; Guide wavelength exceeds the free-space value; The usable band lies between two cutoffs; WR-90 wide wall — 22.86 mm; TE₁₀ cutoff — 6.56 GHz; Usable band — 8.2 to 12.4 GHz; X-band radar uses WR-90 because its single-mode window covers 8.2 to 12.4 GHz.. Phase velocity inside a guide exceeds c while group velocity stays below it. Only the group velocity carries information.

Who is the Waveguide Modes poster for?

Waveguide Modes 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 Waveguide Modes poster?

Use it to pick a guide size, or to explain why nothing propagates below cutoff. A wall chart earns its place by being glanceable from where the work is happening, so Waveguide Modes belongs on the wall where that engineering work actually happens, within glancing distance, rather than filed away.

What other posters go with Waveguide Modes?

Antenna Fundamentals, Antenna Types and Boundary Conditions sit alongside Waveguide Modes 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 Waveguide Modes poster free to download and print?

Yes. Waveguide Modes 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 Waveguide Modes poster print at?

Waveguide Modes 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 Waveguide Modes loses nothing.Printing guide