US 12,754,080 B2Granted

Electronic device and method for calibrating temperature related scattering matrix of temperature sensitive device

AssigneeMediatek Inc.

InventorsKuo-Hao Chen, Toru Matsuura

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Abstract

An electronic device and a method for calibrating a temperature related scattering matrix (S-matrix) of a temperature sensitive device are provided. The electronic device includes a temperature sensitive device for receiving a forward signal and a reverse signal corresponding to a desired signal and a calibration kit for providing a switchable impedance. During a first phase, the electronic device operates in a first temperature, and multiple first calculation results are calculated according to the forward signal and the reverse signal by setting the switchable impedance to be multiple impedances, respectively. During a second phase, the electronic device operates in a second temperature, and multiple second calculation results are calculated according to the forward signal and the reverse signal by setting the switchable impedance to be the multiple impedances, respectively. In addition, the temperature related S-matrix is calibrated according to the multiple first calculation results and the multiple second calculation results.

Claims16

Dependent claims

An electronic device, comprising:

a temperature sensitive device, configured to transmit a desired signal and receive a forward signal and a reverse signal in response to the desired signal, the temperature sensitive device comprising:
a temperature sensitive circuit, having an output terminal connected to a calibration kit;
and
a coupler, connected to an input terminal of the temperature sensitive circuit, configured to transmit the desired signal and receive the forward signal and the reverse signal from the temperature sensitive circuit;
the calibration kit, connected to the output terminal of the temperature sensitive device, configured to provide a switchable impedance;
a processing circuit, configured to generate multiple first calculation results and multiple second calculation results according to the forward signal and the reverse signal, and calibrate a temperature related scattering matrix (S-matrix) of the temperature sensitive device according to the multiple first calculation results and the multiple second calculation results;
and
a transceiver, connected between the processing circuit and the coupler, wherein a transmitting path of the transceiver transmits the desired signal to the coupler, and a receiving path of the transceiver receives the forward signal via a coupled port of the coupler and receives the reverse signal via an isolated port of the coupler, to allow the processing circuit to receive the forward signal and the reverse signal via the transceiver;
wherein:
during a first phase, the electronic device operates in a first temperature, and the multiple first calculation results are calculated according to the forward signal and the reverse signal by setting the switchable impedance to be multiple impedances, respectively;
and
during a second phase, the electronic device operates in a second temperature, and the multiple second calculation results are calculated according to the forward signal and the reverse signal by setting the switchable impedance to be the multiple impedances, respectively.

9 more elements

A method for calibrating a temperature related scattering matrix (S-matrix) of a temperature sensitive device, comprising:

utilizing the temperature sensitive device to transmit a desired signal and receive a forward signal and a reverse signal in response to the desired signal;
utilizing a calibration kit connected to an output terminal of the temperature sensitive device to provide a switchable impedance;
during a first phase, configuring the temperature sensitive device to operate in a first temperature, and calculating multiple first calculation results according to the forward signal and the reverse signal by setting the switchable impedance to be multiple impedances, respectively;
during a second phase, configuring the temperature sensitive device to operate in a second temperature, and calculating multiple second calculation results according to the forward signal and the reverse signal by setting the switchable impedance to be the multiple impedances, respectively;
and
calibrating the temperature related S-matrix of the temperature sensitive device according to the multiple first calculation results and the multiple second calculation results;
wherein the temperature sensitive device comprises a temperature sensitive circuit having the output terminal connected to the calibration kit and a coupler connected to an input terminal of the temperature sensitive circuit, and utilizing the temperature sensitive device to transmit the desired signal and receive the forward signal and the reverse signal in response to the desired signal comprises:
utilizing the coupler to transmit the desired signal and receive the forward signal and the reverse signal from the temperature sensitive circuit;
and
the method further comprises:
utilizing a transmitting path of a transceiver connected between a processing circuit and the coupler to transmit the desired signal to the coupler;
utilizing a receiving path of the transceiver to receive the forward signal via a coupled port of the coupler and receive the reverse signal via an isolated port of the coupler;
and
utilizing a processing circuit to receive the forward signal and the reverse signal via the receiving path of the transceiver, to allow the processing circuit to generate the multiple first calculation results and the multiple second calculation results according to the forward signal and the reverse signal and thereby calibrate the temperature related S-matrix according to the multiple first calculation results and the multiple second.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/510,685Filed 16 Nov 2023
Published: US 2025/0164320 A122 May 2025
Granted: 6 Oct 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification17 codes

G01K 7/021
Using thermoelectric elements, e.g. thermocouples: particular circuit arrangements
G01K 1/024
Means for indicating or recording specially adapted for thermometers: for remote indication
G01K 1/026
Means for indicating or recording specially adapted for thermometers: arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
G01K 7/023
Using thermoelectric elements, e.g. thermocouples: provided with specially adapted connectors