Tuning of Filters

An apparatus, comprising:

• at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to perform operations comprising:
• obtaining information indicating at least one reference characteristic;
• obtaining input data, the input data relating to the output of the tunable filter;
• determining, based on the input data, at least one characteristic of the tunable filter;
• upon detecting that the at least one determined characteristic does not match with the at least one reference characteristic, determining tuning instructions for the tunable filter;
• and
• applying the tuning instructions in adjusting the tunable filter.

A system for tuning a radio frequency or a microwave filter, comprising:

• a filter analyser for measuring an output of the filter and providing information of the output to a control apparatus;
• the control apparatus comprising:
• at least one processor and at least one memory including a computer program code, wherein the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to perform operations comprising:
• obtaining information indicating at least one reference characteristic;
• obtaining input data, the input data relating to the output of the filter;
• determining, based on the input data, at least one characteristic of the filter;
• upon detecting that the at least one determined characteristic does not match with the at least one reference characteristic, determining tuning instructions for the filter;
• and
• outputting the tuning instructions in adjusting the filter;
• and
• a filter tuning unit for tuning the filter according to the tuning instructions obtained from the control apparatus.