Adaptively Filtering Trans-impedance Amplifier for Rf Current Passive Mixers
نویسندگان
چکیده
منابع مشابه
A Novel Resistive Capacitive Feedback Trans-impedance Amplifier Optimization Using IPSO Algorithm
A novel low noise trans-impedance amplifier is proposed using low cost 0.18 µm CMOS technology. A resistive-capacitive feedback is used to extend the bandwidth of the amplifier. As the structure is inductor less, it is suitable for low cost integrated optical interconnects. In this paper Improved Particle Swarm Optimization have applied to determine optimal trans-resistance and noise of propose...
متن کاملActive feedback receiver with integrated tunable RF channel selectivity, distortion cancelling, 48dB stopband rejection and >+12dBm wideband IIP3, occupying 2 in 65nm CMOS
The impedance transformation property of passive mixers enables integrated high-Q channel selection at RF with a programmable center frequency through a clock [1, 2]. As such, this technique is suitable for addressing both linearity and flexibility requirements in wideband and cognitive radio applications. However, given the typically low resistance level at the RF side of the receiver chain, t...
متن کاملFrequency Translation Loops for RF Filtering Theory and Design
Modern wireless transceivers are required to operate over a wide range of frequencies in order to support the multitude of currently available wireless standards. Wideband operation also enables future systems that aim for better utilization of the available spectrum through dynamic allocation. As such, co-existence problems like harmonic mixing and phase noise become a main concern. In particu...
متن کاملRF Sensor Considerations for Input Predistortion Correction of Transmit Arrays
Introduction Transmit array systems offer the promise of accelerated excitation, B1 shimming, and the potential for SAR and RF safety management [1,2], while also demanding high-fidelity RF playback in a challenging multi-channel environment. Tx coil arrays are subject to mutual coupling and loading variations, while RF power amplifiers exhibit non-linearity, ill-defined output impedances, and ...
متن کاملTunable selective receiver front end with impedance transformation filtering
A highly selective impedance transformation filtering technique suitable for tunable selective RF receivers is proposed in this paper. To achieve blocker rejection comparable to SAW filters, we use a two stage architecture based on a low noise trans-conductance amplifier (LNTA). The filter rejection is captured by a linear periodically varying (LPV) model that includes band limitation by the LN...
متن کامل