The application discloses a kind of Sub-GHz-based airborne
wireless sensor network node
system and matching network calculation method, including sensor sensitive unit module, single-
chip microcomputer control module,
wireless communication module and power supply module;With the compatibility between the original equipment of Sub-GHz-based
wireless communication module design ensures airborne, optimize
impedance matching circuit makes transmission power reach 20
dBM,
center frequency 915MHz, bandwidth 530MHz, at the suppression of secondary
harmonic frequency and
third harmonic frequency reaches-40dB below, wireless module maximum
transmission rate can reach 2Mbps, and through
electromagnetic compatibility test ensures the anti-interference of wireless communication module.The application has strong anti-interference ability,
signal attenuation is slow, and low
power consumption is suitable for solving cabin complex environment.