High-frequency filter device, high-frequency module, and high-frequency filter method

A high-frequency filter device, comprising:

• a signal input which is configured to receive a high-frequency signal;
• a plurality of filter units which are configured to filter the high-frequency signal received by the signal input;
• and
• at least one switch unit, which can be actuated by a switch signal in order to modify a filter characteristic of the high-frequency filter device by connecting the filter units;
• and
• a signal output, which is configured to output the filtered high-frequency signal.

A high-frequency module, comprising:

• at least one high-frequency filter device including:
• a signal input which is configured to receive a high-frequency signal,
• a plurality of filter units which are configured to filter the high-frequency signal received by the signal input, and
• at least one switch unit, which can be actuated by a switch signal in order to modify a filter characteristic of the high-frequency filter device by connecting the filter units, and
• a signal output, which is configured to output the filtered high-frequency signal;
• and
• a control unit configured to actuate the switch unit of the high-frequency filter device using the switch signal.

A high-frequency filter method, comprising the following steps:

• receiving a high-frequency signal;
• filtering the high-frequency signal using a plurality of filter units;
• and
• outputting the filtered high-frequency signal;
• wherein, by actuating a switch unit by a switch signal, the filter units are connected in such a way that a filter characteristic of the high-frequency filter device is modified.