An ear-worn electronic hearing device comprises an enclosure configured to be supported by, at, in or on an ear of the wearer. Electronic circuitry is disposed in the enclosure and comprises a wireless transceiver. An antenna is disposed in or on the enclosure and operably coupled to the wireless transceiver. The antenna has a physical size and comprises a plurality of cutouts disposed along a periphery of the antenna. The cutouts are configured to increase an electrical length of the antenna without an increase in the physical size of the antenna. The antenna can comprise at least one interior window having a window periphery. A plurality of window cutouts are disposed along the window periphery. The window cutouts are configured to increase a path length of current distribution along the window periphery.