Patent ID: 11933754
Assignee: LG ELECTRONICS INC.
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 15:
16. A sensor, comprising:
a substrate;
an antenna pattern formed in a spiral shape on the substrate and configured to receive a radio signal from an external device so as to transmit a digital signal to the external device;
a first electrode and a second electrode formed on the substrate and spaced apart from each other in parallel and configured to sense a measurement value representing a change in inputted alternating current power corresponding to a change in impedance by a sensing target material being brought into contact therewith;
a circuit wiring formed to be connected to each of the first electrode and the second electrode;
a circuit insulating layer disposed on at least a portion of the circuit wiring and having a window to expose the first electrode and the second electrode; and
an element bonded to the antenna pattern and the circuit wiring,
wherein the antenna pattern, the first electrode, the second electrode, and the circuit wiring are formed of a same material and form a same layer, and
wherein the element generates the alternating current power with the radio signal to supply the alternating current power to the first electrode and the second electrode through the circuit wiring, and generates the digital signal corresponding to the measurement value to transmit the digital signal to the external device through the antenna pattern.