What advantage does a transformer present when used for impedance matching at radio frequencies?

Radio frequency transformers, such as broadband baluns and ununs, are highly valued because they can match impedances across a very wide range of frequencies without needing adjustment. This is a significant advantage over simple inductor-capacitor (LC) matching networks, which are highly frequency-dependent and require constant retuning when you change bands. The distractors are incorrect for several reasons. A transformer does not isolate a source from reflections; if there is a mismatch at the antenna, the reflected power will still pass back through the transformer. Additionally, transformers do not inherently handle more power than robust reactive components, nor do they guarantee a constant voltage to the load regardless of the impedance.