Signal delay device with reduced size

A device for signal delay, the device comprising:

• a frame of insulation material;
• multiple signal electrodes provided in the frame, the multiple signal electrodes comprising:
• a first signal electrode;
• and
• a second signal electrode electrically connected in series with the first signal electrode;
• an input terminal electrically connected to the first signal electrode and configured to receive an input signal;
• and
• an output terminal electrically connected to the second signal electrode and configured to output an output signal that is delayed by the multiple signal electrodes with respect to the input signal, wherein
• at least one of the multiple signal electrodes is located at a different height than those of other signal electrodes with respect to a surface on which the device is to be mounted, wherein
• the frame has a first hole extending from a first outer surface of the frame to a second outer surface of the frame which is opposed to the first outer surface, thereby forming a first opening in the first outer surface of the frame and a second opening in the second outer surface of the frame,
• the frame has a second hole extending from the first outer surface of the frame to the second outer surface of the frame, thereby forming a third opening in the first outer surface of the frame and a fourth opening in the second outer surface of the frame,
• the first signal electrode is located in the first hole, and
• the second signal electrode is located in the second hole.