User's Manual

USER MANUAL V1.05
© 2013 EnOcean | www.enocean.com STM 320 / STM 320C / STM 320U User Manual V1.05 | Page 10/18
STM 320 / STM 320C / STM 320U
4 APPLICATIONS INFORMATION
4.1 Helical antenna
868 MHz / 902 MHz
315 MHz
Antenna recommendation:
STM 320 without host PCB STM 320 with host PCB
Host PCB GND plane
Glass, wood, concrete, metal
868/902 MHz: > 2 mm
315 MHz: > 4 mm
868/902 MHz: > 5 mm
315 MHz: > 10 mm
Plastic