RF Link Evaluation Board
Layout in progress; 2.4 GHz mixed-signal evaluation platform for RF-path characterization, VSWR measurement, and automated telemetry logging
Design Responsible Engineer
Schematic
Exported PDF/SVG sheets.
Layout
Copper layer inspector.
3D Model
STEP board preview.
Notes
Design wiki and bring-up notes.
Case Study
Engineering Summary
2.4 GHz
RF Band
0-12 dBm
TX Range
1.1:1-3:1
Target VSWR
8 Ch / 12 Bit
Telemetry ADC
A 2.4 GHz mixed-signal RF evaluation board for characterizing a LoRa telemetry transceiver under controlled transmit, receive, and mismatch conditions. The board combines switched RF test paths, forward and reverse power measurement, detector telemetry, current and temperature sensing, a 12-bit SAR ADC, and Compute Module 5 control and data logging.
Design Focus
- Maintain controlled-impedance RF paths with continuous reference planes and minimal discontinuities
- Measure forward and reflected power without overdriving the log detector
- Bound measurement uncertainty introduced by directional-coupler directivity
- Keep detector and ADC signals isolated from digital, USB, Ethernet, and switching-power noise
- Provide flexible RF access for VNA, spectrum-analyzer, conducted-power, and antenna-mismatch testing
Layout is in progress; RF validation results will be separated from schematic analysis as measurements become available.