

Biscuit
A board for prototyping basic RF circuits (filters etc)
- Size
- 35.6 × 12.2 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 7
- Nets
- 2
- Pads
- 30
- Tracks, vias
- 1, 59
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 14 Feb 2022
- Updated
- 17 Feb 2022
Overview
Biscuit is an open-source printed circuit board by loganrf, from the loganrf/Biscuit repository on GitHub, published under the Apache-2.0 licence. It is a 4-layer board of 35.6 × 12.2 mm with 7 parts on 2 nets, routed with 1 track and 59 vias.
README
README.mdBiscuit
A board for prototyping basic RF circuits (filters etc).
Current design is only good to 1.8GHz. Work is underway to improve the end launch for better performance above that frequency.
Note the 4 extra SMA connectors on the edges. These can be enabled by using a knife to cut the center pad from the surrounding ground plane.
Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | Conn_Coaxial | Connector_Coaxial:SMA_Amphenol_132289_EdgeMount | J1, J2, J3, J4, J5, J6 |
| 1 | LOGO | LOGO | G*** |
Questions
How big is the Biscuit PCB?
It measures 35.6 × 12.2 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Biscuit use?
7 parts. 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 Biscuit KiCad files?
From the loganrf/Biscuit repository on GitHub, at the commit this page was made from: the board is Biscuit.kicad_pcb and its schematic Biscuit.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Biscuit design in my own project?
Its repository publishes it under the Apache-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).
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