Skip to the content
2 layers200 × 100 mmPCB Transmission Line, the printed circuit board in 3D

A simple board with a 50-ohm transmission line for observing waves and reflections under the oscilloscope.

Size
200 × 100 mm
Copper layers
2
Thickness
0.89 mm
Parts
7
Nets
2
Pads
16
Tracks, vias
24, 729
Pours
1
Routed
Yes
KiCad
KiCad 9.0 (file 20241229)
Created
16 Aug 2025
Updated
24 Oct 2025

Overview

PCB Transmission Line is an open-source printed circuit board by marqueztronics, from the marqueztronics/PCB-Transmission-Line repository on GitHub, published under the CERN-OHL-P-2.0 licence. It is a 2-layer board of 200 × 100 mm with 7 parts on 2 nets, routed with 24 tracks and 729 vias.

It is built around the KH-BNC50-3511. It belongs with the sensors and measurement boards of this library.

Main components

1

README

README.md

PCB Transmission Line

A simple board with a 50-ohm transmission line for observing waves and reflections under the oscilloscope.

Board Images

Top View - 2D

Top 2D

Bottom View - 2D

Bottom 2D

Isometric

Isometric

Top View - 3D Render

Top 3D

Bottom View - 3D

Bottom 3D

Parts

7
QtyValueFootprintReferences
4MountingHole_PadMountingHole:MountingHole_3.2mm_M3_PadH1, H2, H3, H4
3KH-BNC50-3511Marqueztronics:CONN_BNC_THT_RA_KH-BNC50-3511J1, J2, J3

Similar boards

  • 4 layers100 × 80 mmBuilt, the printed circuit board in 3D

    Built

    devbisme/ai-circuit-design-tests

    Tests of KiCad-related AI tools.

    243 parts10
  • 2 layers119 × 92 mmClock A, the printed circuit board in 3D

    Clock A

    fluffy/blinky

    Blinking lights to tell time

    225 parts
  • 4 layers114.3 × 108 mmPellet, the printed circuit board in 3D

    Pellet

    Mouse-GYM/auto-trainer-hardware

    Repository for hardware, firmware, and software related to the Mouse-GYM modules

    202 parts
  • 4 layers100 × 100 mmDIY AWG V1.1, the printed circuit board in 3D

    DIY AWG V1.1

    Xpeditor15/DIY_AWG_V1.0

    235 parts
  • 2 layers92.4 × 96.6 mmLiBo BaseBoard, the printed circuit board in 3D

    LiBo BaseBoard

    ItsNotDaan/LiberBoard

    LiberBoard: An open-source, modular platform for learning electronics. Offers LiBo ARM-based PCBs and add-on boards with practical exercises and code snippets. Designed for easy learning and project creation.

    65 parts8CERN-OHL-P-2.0
  • 2 layersEncoder, the printed circuit board in 3D

    Encoder

    byrantech/laptop

    anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.

    7 parts4.3kMIT
  • 2 layers40 × 20 mmSensor smd, the printed circuit board in 3D

    Sensor smd

    scottbez1/splitflap

    DIY split-flap display

    7 parts4.2k
  • 2 layers19.8 × 30 mmZ limit, the printed circuit board in 3D

    Z limit

    opulo-inc/lumenpnp

    The LumenPnP is an open source pick and place machine.

    7 parts3.7k

Questions

How big is the PCB Transmission Line PCB?

It measures 200 × 100 mm and has 2 copper layers, 0.89 mm thick.

What parts does the PCB Transmission Line use?

7 parts, built around the KH-BNC50-3511. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the PCB Transmission Line KiCad files?

From the marqueztronics/PCB-Transmission-Line repository on GitHub, at the commit this page was made from: the board is PCB Transmission Line.kicad_pcb and its schematic PCB Transmission Line.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the PCB Transmission Line design in my own project?

Its repository publishes it under the CERN-OHL-P-2.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).