High-Frequency Noise in RF Active CMOS Mixers
ثبت نشده
چکیده
A new analytical model for high-frequency noise in RF active CMOS mixers such as single-balanced and doublebalanced architectures is presented. The analysis includes the contribution of non-white gate-induced noise at the output as well as the spot noise figure (NF) of the RF CMOS mixer, while accounting for the non-zero correlation between the gateinduced noise and the channel thermal noise. The noise contribution of the RF transconductor as well as the switching pair on the output noise is discussed. The analytical model predicts that the output noise and NF are both a strong function of the LO frequency at gigahertz range of frequencies. Simulation results verify the accuracy of the analytical model.
منابع مشابه
Frequency 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 کاملHigh linearity, low power RF mixer design in 65ᅡᅠnm CMOS technology
A design of RF down-conversion Gilbert-Cell, with 65 nm CMOS technology, at a supply voltage of 1.8 V, with a new degenerating structure to improve linearity. This architecture opens the way to more integrated CMOS RF circuits and to achieve a good characteristics in terms of evaluating parameters of RF mixers with a very low power consumption (2.17 mW). At 1.9 GHz RF frequency; obtained result...
متن کاملMeasurement of the Low Frequency Noise of MOSFETs Under Large Signal RF Excitation
A measurement technique [1] is presented that allows measurement of MOSFET low frequency (LF) noise under large signal RF (Radio Frequency) excitation. Measurements indicate that MOSFETS exhibit a reduction in LF noise when they are cycled from inversion to accummulation and that this reduction does not depend on the frequency of excitation for excitation frequencies of up to 3 GHz. The measure...
متن کاملComparative Study of Broadband RF Subharmonic Mixers in Submicron Technology
With the advancements in wireless technologies a lot of concern has been given for designing RF circuits and the designers are trying to introduce new topologies to achieve better outputs whether be at transmitter or receiver section of a communication system and this in-turn has led to the development of individual components of these systems. In this paper, a review of various broadband confi...
متن کاملRF front-end architecture for a triple-band CMOS GPS receiver
This paper describes a triple-band global positioning system (GPS) receiver that simultaneously covers the L1, L2, and L5 frequency bands. The proposed receiver uses an image-rejection technique that can separate signals from the three frequency bands to three corresponding ports. It uses a single RF path containing a low-noise amplifier (LNA), and active and passive mixers with a pair of local...
متن کامل