A broadband resonant transducer capable of low-loss coupling between magneto-inductive (MI) waveguides and a real impedance is introduced. The transducer is an L–C circuit resonating at the resonant frequency of the elements forming the guide. However, the values of the components in the transducer are different, and chosen to obtain two separate nulls in reflection so that low reflection is obtained over a wide spectral range. The transducer can be incorporated into the MI waveguide itself, allowing a connection between a MI cable and a conventional system to be made as a simple splice. The design is confirmed using 2 m length of low-loss thin-film MI cables formed using copper-clad polyimide and operating near 100 MHz frequency.</jats:p
