Patent ID: 9054773
Filing Date: 2015-06-09
Classification: H04B

Abstract:
1. An apparatus comprising a broadcast receiver circuit, an embedded antenna configured and arranged for receiving broadcast signals in a broadcast band of interest, the embedded antenna being less than one tenth of the wavelength corresponding to a center frequency of the broadcast band of interest and for presenting a primarily reactive impedance, and a tuning circuit coupled between the antenna and the broadcast receiver circuit, which tuning circuit includes a filter circuit coupled to ground, wherein the filter circuit includes primarily reactive impedance of the embedded antenna and the tuning circuit is configured and arranged to have a first resonance at a first frequency below a lower cutoff frequency for the broadcast band of interest, and a second resonance at a second frequency above an upper cutoff frequency of the broadcast band and wherein the tuning circuit comprises an amplifier with an output to the receiver circuit and with an input to the filter circuit, and wherein the tuning circuit is configured to provide a carrier to noise ratio (CNR) which is substantially flat across the broadcast band.