toward a target that includes a bar code symbol on a surface thereof a sensor or photo detector detects light reflected or scattered from the symbol back through the opening 14 this light may then be converted into an electrical signal that is decoded into a digital representation of the data represented by the scanned symbol those skilled in the art will understand that there are multiple devices that require at least one opening 14 in the housing 12 for example a camera has an opening for a lens a pda and mobile terminals have an opening for a display screen etc thus in some cases the opening 14 is used by the device to collect light e g camera in some cases to both transmit and collect light e g bar code scanner and in some cases to provide a display to a user e g pda those skilled in the art will understand that the antenna according to the present invention will work equally well regardless of the underlying functionality of the opening 14 the housing 12 may also house the electrical and electronic components for the device e g processors power source etc including a conventional communication device which is.