Patent attributes
A near field communication (NFC) reader is disclosed. The NFC reader includes a first section. The first section includes an NFC controller and a filter coupled to the NFC controller. The filter includes a filter capacitor. The first section further includes a first tuning circuit coupled to the filter. The first tuning circuit includes a tuner capacitor that is electrically coupled in parallel to the filter capacitor. The first tuning circuit is configured and adapted to be coupled to a coaxial cable. The NFC reader also includes a second section. The second section includes a second tuning circuit. The second tuning circuit includes a second tuner capacitor and a damping resistor. The second tuning circuit is configured and adopted to be coupled to the coaxial cable. The second section further includes an antenna coupled to the second tuning circuit.