| CPC G01R 31/55 (2020.01) [G01R 15/18 (2013.01); G01R 19/0084 (2013.01); G01R 19/16566 (2013.01)] | 15 Claims |
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1. An electronic device comprising:
a first substrate;
a second substrate arranged to be spaced apart from the first substrate;
a first cable electrically connecting a first point on the first substrate and a second point on the second substrate; and
a second cable electrically connecting a third point on the first substrate and a fourth point on the second substrate,
wherein the first substrate includes:
a first communication circuit connected to the first point,
a second communication circuit connected to the third point,
a detection circuit,
a voltage application unit connected to a path between the first point and the first communication circuit through the detection circuit, and
a ground unit connected to a path between the third point and the second communication circuit,
wherein the second substrate includes:
a first antenna electrically connected to the second point through a first path,
a first capacitive element arranged on the first path, a second antenna electrically connected to the fourth point through a second path,
a second capacitive element arranged on the second path, and
an isolation circuit arranged on a third path between the first path and the second path, and
wherein the isolation circuit is configured to:
isolate a radio frequency (RF) signal between the first path and the second path, and
electrically connect the detection circuit to the ground unit through the first cable and the second cable.
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