RADIO DATA COMMUNICATION MODULE

摘要

PROBLEM TO BE SOLVED: To provide a radio data communication module that can reduce a correlation coefficient between two antennas even when the antennas are arranged in proximity to each other.

SOLUTION: A radio data communication module 100 comprises: a multi-antenna constituted by a micro antenna 110 and an MSA 120 which operate at one identical resonant frequency; and a module board 130 having a GND pattern 135. The MSA 120 is formed so as to resonate in a width direction perpendicular to a longer direction of the module board 130, so that current mainly contributing to radiation by the micro antenna 110 flows in the longer direction of the GND pattern 135. Thereby, a resonance direction by the micro antenna 110 is formed perpendicular to the resonance direction by the MSA 120.

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