- https://patents.justia.com/inventor/peter-h-chen
- http://qtec.wtc.net/POMind/PeterHChenCircuitDevicePaper20091002.pdf
- https://www.semanticscholar.org/paper/Fixing-antenna-problem-by-dynamic-diode-dropping-Chen-Malkani/ce75dc8d162d8e709ab0b58816563098d9234b0e
- http://qtec.wtc.net/POMind/PeterHChenCircuitDevicePaper20091002.pdf