Wireless communication device, high-frequency circuit system, and local leak reduction method

A high-frequency circuit system comprising:

• a plurality of high-frequency circuits that convert an input signal into a high-frequency signal;
• a power detection unit that receives a high-frequency signal transmitted from each of the high-frequency circuits, and detects power of the high-frequency signal;
• a first correction circuit that performs a common correction on the input signal to be output to each of the high-frequency circuits, to reduce local leaks occurring in the high-frequency circuits, according to the power of at least one high-frequency signal detected by the power detection unit;
• and
• a second correction circuit that performs a correction for each input signal to be output to the high-frequency circuits, to reduce local leaks occurring in the high-frequency circuits, according to the power of each high-frequency signal detected by the power detection unit.

A local leak reduction method comprising the steps of:

• detecting power of a high-frequency signal output from a high-frequency circuit selected from a plurality of high-frequency circuits that convert an input signal into a high-frequency signal;
• performing a common correction on the input signal to be output to each of the high-frequency circuits, to reduce local leaks occurring in the high-frequency circuits, according to the power of the detected high-frequency signal;
• and
• performing a correction for each input signal to be output to the high-frequency circuits, to reduce local leaks occurring in the high-frequency circuits, according to the power of each of the detected high-frequency signals.