An antenna device for a portable radio communication device comprises a first electrically conductive radiating element including a basic resonance defining section having a first end, a length varying section connected between a feed point of the radiating element and the first end of the basic resonance defining section. The length varying section includes a set of parallel conductive paths and a first switching element selectively supplying radio signals between the feed point and the basic resonance defining section via one of the paths in the set. Each path influences the resonance of the radiating element in a separate way and at least one path includes a reactive element for adjusting the resonance of the first radiating element.
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