FILTER TO SUPPRESS HARMONICS FOR AN ANTENNA

摘要

Disclosed herein, among other things, are systems and methods for filtering to suppress harmonics for a hearing assistance device antenna. One aspect of the present subject matter includes a hearing assistance system for a wearer including a wireless radio frequency (RF) transceiver, an antenna and a filter connected between the RF transceiver and the antenna. According to various embodiments, the filter is configured to suppress harmonics for the antenna, and configured to maintain impedance and prevent inversion of impedance presented to the RF transceiver from the antenna.

主权项

1. A hearing assistance device, comprising:
a wireless radio frequency (RF) transceiver; an antenna; and a balanced low pass filter connected between the RF transceiver and the antenna, the filter configured to suppress harmonics for the antenna and configured to prevent inversion of impedance presented to the RF transceiver from the antenna.