WIRELESS APPARATUS HAVING SHIELD FUNCTION

摘要

PURPOSE: A wireless device with a shielding function is provided to supply a secondary harmonics which a consumer wants by shielding a signal interference between a driving power source from a power amplifier and a conductive line. CONSTITUTION: A wireless device includes an amplifier, an impedance matching unit, and a shielding unit(130). An impedance matching unit includes a first band transformer(121) and a second band transformer(122) according to a frequency range of an RF input signal which is inputted to the amplifier. The first and second band transformers respectively include coils for a specific operation. A driving power transmission path is formed between the first and second band transformers.