Patent ID: 11954555
Assignee: NISSHINBO MICRO DEVICES INC.
Field: Basic communication processes (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 9:
10. A sensor module comprising:
an antenna;
a first sensor;
a second sensor; and
a sensor interface circuit comprising:
an RF switch having a control node;
a bias circuit electrically connected to the control node and applying, to the control node, a voltage at a first level or a second level corresponding to a linear region of a reflection characteristic within which the RF switch operates;
a first variable oscillation circuit electrically connectable to the first sensor;
a second variable oscillation circuit electrically connectable to the second sensor; and
a difference circuit electrically connected between the first variable oscillation circuit and the second variable oscillation circuit, and the bias circuit,

wherein the sensor interface circuit is electrically connected between the first sensor and the second sensor, and the antenna.