Improving Linearity of CMOS Variable-gain Amplifier Using Third-order Intermodulation Cancellation Mechanism and Intermodulation Distortion Sinking Techniques

Third-order intermodulation distortion in graphene resonant channel transistors

Articles you may be interested in Enhanced force sensitivity and noise squeezing in an electromechanical resonator coupled to a nanotransistor Appl. Synchronous measurement of even and odd order intermodulation distortion at the resonant frequency of a superconducting resonator Rev. Monte Carlo based analysis of intermodulation distortion behavior in GaN–Al x Ga 1−x N high electron mobility tra...

A Novel Frequency-Independent Third-Order Intermodulation Distortion Cancellation Technique for BJT Amplifiers

Second-harmonic control is implemented in a balanced common-emitter configuration to facilitate frequency-independent third-order intermodulation distortion cancellation. Moreover, this circuit configuration facilitates a simultaneous match for either power and linearity or noise and linearity. Experiments demonstrated an improvement of over 15 dB in the output third-order intercept point while...

Intermodulation Distortion

Measurement of intermodulation distortion in high-linearity photodiodes.

Accurately characterizing third order intermodulation distortion (IMD3) in high-linearity photodiodes is challenging. Two measurement techniques are evaluated-a standard two-tone measurement and a more complicated three-tone measurement technique to measure IMD3. A model of the measurement system is developed and used to analyze the limitations of the two techniques in determining the distortio...

Improve Two-Tone, Third-Order Intermodulation Testing

The two most common errors in the measuring process are (1) failure to provide adequate isolation between the two input signal generators and proper impedance matching, and (2) insufficient filtering of the two input test signals. Without adequate isolation and matching, interaction between the test generators and the device-under-test may produce significant errors (as high as 20 dB). Without ...

High Linearity Cmos Variable Gain Amplifier for Uwb Applications

A large dynamic-range Variable Gain Amplifier (VGA) suitable for Ultra Wide Band (UWB) applications is presented. The VGA is composed of three programmable variable gain amplifier stages followed by an output buffer. Such wide bandwidth allows our proposed VGA to be used in multi-standard protocols. Power reduction is developed for the variable gain amplifier stages. Thorough analyses of the mi...