Variable power distributor, error detection method thereof, and set value correction method

An error detection method for a variable power distributor that includes:

• a set of transmission lines which are first and second transmission lines;
• a two-way distributor provided on an input side of the set of the transmission lines;
• a 90-degree hybrid circuit provided on an output side of the set of the transmission lines;
• and a variable phase shifter, a variable resistance attenuator, and a power amplifier which are provided on each of the set of transmission lines between the two-way distributor and the 90-degree hybrid circuit to control an amplitude and a phase of an input signal and amplify power of the input signal and detects an error present in each component between the first and second transmission lines, the error detection method being characterized by comprising:
• detecting output signals from the first and second transmission lines when a phase of the variable phase shifter provided on the first transmission line is rotated;
• detecting output signals based on the first and second transmission lines when a phase of the variable phase shifter provided on the second transmission line is rotated;
• and
• detecting the error present in each component based on the output signals using a rotating element electric field vector method.

An error detection method for a variable power distributor that includes:

• a set of transmission lines which are first and second transmission lines;
• a two-way distributing circuit provided on an input side of the set of the transmission lines;
• a 90-degree hybrid circuit provided on an output side of the set of the transmission lines;
• and a variable phase shifter, a variable resistance attenuator, and a power amplifier which are provided on each of the set of transmission lines between the two-way distributor and the 90-degree hybrid circuit to control an amplitude and a phase of an input signal and amplify power of the input signal and detects an error present in each component between the first and second transmission lines, the error detection method being characterized by comprising:
• detecting output signals from the first and second transmission lines when a phase of the variable phase shifter provided on the first transmission line is rotated;
• detecting output signals from the first and second transmission lines when a phase of the variable phase shifter provided on the second transmission line is rotated;
• and
• detecting the error present in each component from the output signals using a rotating element electric field vector method.

A variable power distributor including:

• a set of transmission lines which are first and second transmission lines;
• a 90-degree hybrid circuit provided on each of input and output sides of the set of the transmission lines;
• and
• a variable phase shifter and a variable resistance attenuator which are provided on each of the set of transmission lines between the 90-degree hybrid circuit provided on the input side and the 90-degree hybrid circuit provided on the output side to control an amplitude and a phase of an input signal, the variable power distributor being characterized by comprising:
• a monitoring mechanism for monitoring output signals from the 90-degree hybrid circuit;
• and
• error detection means for detecting an error present in each component between the first and second transmission lines based on a monitoring output from the monitoring mechanism.

An error detection method for a variable power distributor that includes:

• a set of transmission lines which are first and second transmission lines;
• a 90-degree hybrid circuit provided on each of input and output sides of the set of the transmission lines;
• and a variable phase shifter and a variable resistance attenuator which are provided on each of the set of transmission lines between the 90-degree hybrid circuit provided on the input side and the 90-degree hybrid circuit provided on the output side to control an amplitude and a phase of an input signal and detects an error present in each component between the first and second transmission lines, the error detection method being characterized by comprising:
• detecting output signals from the first and second transmission lines when a phase of the variable phase shifter provided on the first transmission line is rotated;
• detecting output signals from the first and second transmission lines when a phase of the variable phase shifter provided on the second transmission line is rotated;
• and
• detecting the error present in each component based on the output signals using an improved rotating element electric field vector method.