Lna ai
About the Lna ai PCB
Lna ai is an open source PCB design by cholan2100, published on GitHub. It is a 2-layer board measuring 34 × 29 mm, with 26 components from 24 distinct parts.
By type, the board carries 11 capacitors, 4 inductors, 4 resistors, 3 connectors, 3 diodes and 1 transistor.
It belongs with the audio designs in this gallery.
From the project
High-performance 98 MHz Common-Base FM LNA (100% Agentic AI Designed hardware, KiCad 10, Qucs-S, 50-Ohm CPWG)
The PCB is dimensioned to fit inside the standard OpenSourceSDR Lab / H4M case (Printables Model 1238229). Both the case base (h4m-keytop-24.step) and lid (h4m-keytop-25.step) are included in the repository.
To guarantee uncompromising VHF performance, the design avoids simplistic transmission line approximations. Instead, a full-wave 3D Finite-Difference Time-Domain (FDTD) simulation pipeline was implemented combining openEMS and FreeCAD's Microwave Workbench (Microwave.Solvers.openems):
Lna ai bill of materials (BOM)
26 components, 24 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MMBT5179 | SOT-23 | Q1 |
| 1 | SMA_50R_IN | SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount | J1 |
| 1 | SMA_50R_OUT | SMA_Samtec_SMA-J-P-H-ST-EM1_EdgeMount | J2 |
| 1 | BAT_PADS | PinHeader_1x02_P2.54mm_Vertical | J3 |
| 2 | BAT54 | D_SOD-123 | D1, D2 |
| 1 | LED | LED_0805_2012Metric | D3 |
| 1 | 22nH | L_0603_1608Metric | L1 |
| 1 | 470nH | L_0603_1608Metric | L2 |
| 1 | 150nH | L_0603_1608Metric | L3 |
| 1 | 1uH | L_0603_1608Metric | L4 |
| 1 | 91pF | C_0805_2012Metric | C1 |
| 1 | 27pF | C_0603_1608Metric | C2 |
| 2 | 100pF | C_0805_2012Metric | C3, C9 |
| 1 | 1nF | C_0805_2012Metric | C4 |
| 1 | 100nF | C_0805_2012Metric | C5 |
| 1 | 6.8pF | C_0805_2012Metric | C6 |
| 1 | 10pF | C_0805_2012Metric | C7 |
| 1 | 10nF | C_0805_2012Metric | C10 |
| 1 | 10uF | C_0805_2012Metric | C11 |
| 1 | 100nF | C_0603_1608Metric | C12 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 3.9k | R_0603_1608Metric | R1 |
| 1 | 3.3k | R_0603_1608Metric | R2 |
| 1 | 200R | R_0603_1608Metric | R3 |
| 1 | 2.2k | R_0603_1608Metric | R4 |
Lna ai design files
The KiCad project lives in the cholan2100/lna-ai repository on GitHub; these links point at the commit this page was built from.
- Layoutkicad/lna_fm_98mhz.kicad_pcb
- Schematickicad/lna_fm_98mhz.kicad_sch
Lna ai: common questions
How big is the Lna ai PCB?
The Lna ai measures 34 × 29 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Lna ai?
26 components, from 24 distinct parts. The full bill of materials is listed on this page.
Where can I download the Lna ai design files?
From the cholan2100/lna-ai repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Lna ai design in my own project?
The repository has no license, so all rights stay with cholan2100. Use it as a reference, and ask the author before reusing the design.
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