A fully integrated Q-enhanced notch filter LNA for TX blocker suppression in FDD systems

Withdrawn

“…Figure 4. The proposed Q-enhanced resonator provides center frequency tuning range and larger 3dB bandwidth then the Q-enhanced LNA filters in [1], [4], [5], [6] and [7]. The width of the fully-integrated tunable Q-enhanced LNA design transistors can be determined by the following equation Where is the operating frequency and L is the length of the FET transistor and is the transistor oxide capacitance and is the source resistance.…”

“…Other published tunable Q-enhanced LNA filter design [1] and [2] and [3] have a high noise figure of over 5 dB. And other Q-enhanced LNA filter [1] and [4] and [5] and [6] and [7]. Other published tunable RF LNA Q-enhanced Bandpass filter [8] have degraded linearity of -33 dBm input compression point and -17 dBm [9] do not employ distortion compensation circuit.…”

A 65nm CMOS, 1.5-mm Bluetooth transceiver with integrated antenna filter for Co-existence with a WCDMA transmitter

“…The sensitivity of the Bluetooth receiver is degraded by 1.5 -3.0 dB due to the insertion loss. Integrated antenna filters for WCDMA transceivers have been reported in [1] [2]; however, large occupied area is needed for such filters. To realize lowcost wireless systems, the chip area should be minimized even when the antenna filter is integrated.…”