In accordance with a non-limiting aspect, a mobile wireless communications
device includes a housing, at least one circuit board carried by the
housing, radio frequency (RF) circuitry, and a processor. An antenna is
operative with the RF circuitry. A charging circuit charges a battery
carried by and powers the device and includes at least one charging
contact carried by the housing and configured for engaging an external
charging cradle when connected thereto. It includes an internal connector
extending to at least one circuit board and connecting to the charging
circuitry. An RF filter includes a ferrite material surrounding at least
a portion of the internal connector to minimize RE coupling from the at
least one charging contact to the antenna and reduce transmitter
harmonics emission and receiver de-sense.