An example, which is to design a broadband matching network for a shortwave antenna by the improved RFM, gains good performance while simplifying the calculation.

The frequency response may also be controlled by a low voltage micro sized varicap, or a varactor diode, and instantiated as a tuned, resonant matching filter network residing with the antenna module.

Antennas are feed by 50ohm coaxial cable and feed networks are unnecessary.