4 layers60 × 35 mm
ULNA Lband-2S
cfbird/ULNA-Lband-2S
Two-stage ultra-low-noise amplifier for 1.0 – 2.2 GHz, built around a pair of Skyworks SKY67151-396LF GaAs pHEMT LNAs.
75 parts
Boards by cfbird
2 boardsOpen-source boards designed in KiCad by cfbird on GitHub, from 2 repositories. A board’s address here is its repository’s there.
- 4 layers100 × 60 mm
Work after r3
cfbird/usb3-sdr
USB3 direct-sampling HF SDR: AD9649 ADC -> ECP5 FPGA DDC -> FT601 USB 3. KiCad 9 + Verilog, co-designed by Claude and Gemini (AGY).
231 parts