Method and device for calibrating a hybrid coupler

A method for calibrating a central frequency of a hybrid coupler operating in a power divider mode, wherein the hybrid coupler comprises two inputs, two outputs, a capacitive module coupled between the two inputs and the two outputs or coupled on said two inputs and said two outputs, wherein the capacitive module has an adjustable capacitive value which adjusts the central frequency, the method comprising:

• delivering a first reference signal having a first reference frequency on the first input of the hybrid coupler;
• measuring the peak value of a first signal delivered to the first output of the hybrid coupler;
• measuring the peak value of a second signal delivered to the second output of the hybrid coupler;
• comparing the two peak values;
• and
• adjusting the adjustable capacitive value of the capacitive module until an equality of the peak values for the first and second signals is obtained to within a tolerance.

A method for calibrating a central frequency of a hybrid coupler operating according to a power combiner mode, wherein the hybrid coupler comprises two inputs, two outputs, a capacitive module coupled between the two inputs and the two outputs or on the two inputs and the two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust the central frequency, the method comprising:

• delivering a second reference signal having a second reference frequency on the first output of the hybrid coupler;
• measuring the peak value of a first signal delivered to the first input of the hybrid coupler;
• measuring the peak value of a second signal delivered to the second input of the hybrid coupler;
• comparing the peak values of the first and second signals;
• and
• adjusting the adjustable capacitive value of the capacitive module until an equality of the peak values of the first and second signals is obtained to within a tolerance.

A method for calibrating a central frequency of a hybrid coupler operating according to a phase shifter mode, wherein the hybrid coupler comprises two inputs, two outputs, a capacitive module coupled between the two inputs and the two outputs or on the two inputs and the two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust the central frequency, the method comprising:

• delivering a third reference signal having a third reference frequency on a first input of the hybrid coupler;
• measuring the peak value of a first signal delivered to a first output of the hybrid coupler;
• measuring the peak value of a second signal delivered to the second input of the hybrid coupler;
• comparing the peak values of the first and second signals;
• and
• adjusting the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance.

A method for calibrating a structure comprising an input hybrid coupler operating in power divider mode, an output hybrid coupler operating in power combiner mode and a disconnectable coupling stage coupled between the input hybrid coupler and the output hybrid coupler, the method comprising:

• disconnecting the disconnectable coupling stage;
• after disconnecting, performing a calibration of a central frequency of the input hybrid coupler by:
• delivering a first reference signal having a first reference frequency on a first input of the first hybrid coupler;
• measuring the peak value of a first signal delivered to a first output of the first hybrid coupler;
• measuring the peak value of a second signal delivered to a second output of the first hybrid coupler;
• comparing the two peak values;
• and
• adjusting the adjustable capacitive value of a capacitive module coupled between the inputs and the outputs of the first hybrid coupler or on the inputs and outputs of the first hybrid coupler until an equality of the peak values for the first and second signals is obtained to within a tolerance;
• and
• after disconnecting, performing a calibration of a central frequency of the output hybrid coupler by:
• delivering a second reference signal having a second reference frequency on a first output of the second hybrid coupler;
• measuring the peak value of a third signal delivered to a first input of the second coupler;
• measuring the peak value of a fourth signal delivered to a second input of the second hybrid coupler;
• comparing the peak values of the third and fourth signals;
• and
• adjusting the adjustable capacitive value of the capacitive module until an equality of the peak values of the third and fourth signals is obtained to within a further tolerance.

A method for calibrating a structure comprising two hybrid couplers of identical structure which are able to operate according to one of identical modes or different modes, the method comprising:

• performing a first calibration of a central frequency of one of the two hybrid couplers by:
• delivering a first reference signal having a first reference frequency on a first input of said one of two hybrid couplers;
• measuring the peak value of a first signal delivered to a first output of said one of two hybrid couplers;
• measuring the peak value of a second signal delivered to a second output of said one of two hybrid couplers;
• comparing the two peak values;
• and
• adjusting the adjustable capacitive value of a capacitive module coupled between the inputs and the outputs of said one of two hybrid couplers or on the inputs and outputs of said one of two hybrid couplers until an equality of the peak values for the first and second signals is obtained to within a tolerance;
• recording the adjustable capacitive value of the capacitive module of said one of two hybrid couplers calibrated at the end of the first calibration;
• and
• adjusting a capacitive module of the other one of the two hybrid couplers with the recorded capacitive value.

A method for calibrating a structure comprising two hybrid couplers of identical structure which are able to operate according to one of identical modes or different modes, the method comprising:

• performing a first calibration of a central frequency of one of the two hybrid couplers by:
• delivering a second reference signal having a second reference frequency on a first output of said one of the two hybrid couplers;
• measuring the peak value of a first signal delivered to a first input of said one of the two hybrid couplers;
• measuring the peak value of a second signal delivered to a second input of said one of the two hybrid couplers;
• comparing the peak values of the first and second signals;
• and
• adjusting the adjustable capacitive value of a capacitive module coupled between the inputs and the outputs of said one of two hybrid couplers until an equality of the peak values of the first and second signals is obtained to within a tolerance;
• recording the adjustable capacitive value of the capacitive module of said one of two hybrid couplers calibrated at the end of the first calibration;
• and
• adjusting a capacitive module of the other one of the two hybrid couplers with the recorded capacitive value.

A method for calibrating a structure comprising two hybrid couplers of dentical structure which are able to operate according to one of identical modes or different modes, the method comprising:

• performing a first calibration of a central frequency of one of the two hybrid couplers by:
• delivering a third reference signal having a third reference frequency on a first input of one of said two hybrid couplers;
• measuring the peak value of a first signal delivered to a first output of said one of said two hybrid couplers;
• measuring the peak value of a second signal delivered to the second input of said one of said two hybrid couplers;
• comparing the peak values of the first and second signals;
• and
• adjusting the adjustable capacitive value of a capacitive module coupled between the inputs and the outputs of said one of two hybrid couplers or on the inputs and outputs of said one of two hybrid couplers until an equality of the peak values is obtained to within a tolerance;
• recording the adjustable capacitive value of the capacitive module of said one of two hybrid couplers calibrated at the end of the first calibration;
• and
• adjusting a capacitive module of the other one of the two hybrid couplers with the recorded capacitive value.

An electronic device, comprising:

• a hybrid coupler operating according to a power divider mode and comprising two inputs, two outputs, a capacitive module that is coupled between the two inputs and the two outputs or on the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler, wherein a first input of the said hybrid coupler is configured to receive a first reference signal having a first reference frequency;
• a measuring circuit configured to measure the peak value of a first signal delivered to a first output of the hybrid coupler and measure the peak value of a second signal delivered to the second output of the hybrid coupler;
• and
• a processing circuit configured to compare the peak values of the first and second signals and adjust the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance.

An electronic device, comprising:

• a hybrid coupler operating according to a power combiner mode and comprising two inputs, two outputs, a capacitive module coupled between the two inputs and the two outputs or on the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler, a first output of the hybrid coupler configured to receive a second reference signal having a second reference frequency;
• a measuring circuit configured to measure the peak value of a first signal delivered to a first input of the hybrid coupler and measure the peak value of a second signal delivered to the second input of the hybrid coupler;
• and
• a processing circuit configured to compare the peak values of the first and second signals and adjust the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance.

An electronic device, comprising:

• a hybrid coupler operating according to a phase shifter mode and comprising two inputs, two outputs, a capacitive module coupled between the two inputs and the two outputs or one the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler, a first input of the hybrid coupler configured to receive a third reference signal having a third reference frequency;
• a measuring circuit configured to measure the peak value of a first signal delivered to a first output of the hybrid coupler and the peak value of a second signal delivered to a second output of the hybrid coupler;
• and
• a processing circuit configured to compare the peak values of the first and second signals and adjust the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance.

A structure, comprising:

• an input electronic device comprising:
• a hybrid coupler operating according to a power divider mode and comprising two inputs, two outputs, a capacitive module that is coupled between the two inputs and the two outputs or on the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler, wherein a first input of the said hybrid coupler is configured to receive a first reference signal having a first reference frequency;
• a measuring circuit configured to measure the peak value of a first signal delivered to a first output of the hybrid coupler and measure the peak value of a second signal delivered to the second output of the hybrid coupler;
• and
• a processing circuit configured to compare the peak values of the first and second signals and adjust the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance;
• an output device comprising:
• a hybrid coupler operating according to a power combiner mode and comprising two inputs, two outputs, a capacitive module coupled between the two inputs and the two outputs or on the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler, a first output of the hybrid coupler configured to receive a second reference signal having a second reference frequency;
• a measuring circuit configured to measure the peak value of a first signal delivered to a first input of the hybrid coupler and measure the peak value of a second signal delivered to the second input of the hybrid coupler;
• and
• a processing circuit configured to compare the peak values of the first and second signals and adjust the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance;
• and
• a disconnectable coupling stage coupled between the hybrid coupler of the input electronic device and the hybrid coupler of the output electronic device, said disconnectable coupling stage configured to be disconnected before the input electronic device and the output electronic device are respectively configured for adjusting the central frequency of the corresponding hybrid coupler by adjusting the adjustable capacitive value of the corresponding capacitive module.

A structure, comprising:

• a first electronic device comprising:
• a hybrid coupler operating according to an operating mode and comprising two inputs, two outputs, a capacitive module that is coupled between the two inputs and the two outputs or on the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler;
• a second electronic device, comprising:
• a hybrid coupler operating according to an operating mode and comprising two inputs, two outputs, a capacitive module that is coupled between the two inputs and the two outputs or on the two inputs and two outputs, the capacitive module having an adjustable capacitive value making it possible to adjust a central frequency of the hybrid coupler;
• wherein the operating modes of the first and second electronic devices are either identical operating modes or different operating modes;
• and
• a disconnectable coupling stage coupled between the first and second electronic devices, said disconnectable coupling stage configured to be disconnected before the input electronic device and the output electronic device are respectively configured for adjusting the central frequency of the corresponding hybrid coupler by adjusting the adjustable capacitive value of the corresponding capacitive module;
• and
• wherein one of the first and second electronic devices is configured to record the adjustable capacitive value of the capacitive module of said one of the first and second electronic device;
• and
• wherein the other of the first and second electronic devices is configured to have adjustable capacitive value of the capacitive module of said other of the first and second electronic device adjusted with the recorded capacitive value;
• and
• wherein said one of the first and second electronic devices further comprises:
• a measuring circuit configured to measure the peak value of a first signal delivered to a first output of the hybrid coupler and measure the peak value of a second signal delivered to the second output of the hybrid coupler;
• and
• a processing circuit configured to compare the peak values of the first and second signals and adjust the adjustable capacitive value of the capacitive module until an equality of the peak values is obtained to within a tolerance.