An oriented PIFA-type apparatus for reducing hearing aid radio frequency
(RF) interference including a directional multi-band and/or single band
antenna for use with PWDs such as digital cellphones is disclosed. The
apparatus greatly reduces or eliminates the audio noise induced in
hearing aids by the PWDs and allows operation of a hearing aid during PWD
operation. In operation, the apparatus may be provided on the PWD side
away from the user's head. The apparatus may be integrated into the PWB
during its manufacture or provided as an after market assembly for a PWD
that has a port for connection of an external antenna. The apparatus
provides for improved front-to-back ratio as compared to antennas
currently in use on PWD's, and therefore also reduces SAR (specific
absorption rate), the level of RF energy received into the head by a PWD.