Device Circuit Interaction in the Common Source Amplifier
نویسندگان
چکیده
The non-linearity demonstrated by a circuit is a function of the device nonlinearity, its parasitic components and the circuit components in which it is embedded. We demonstrate that the common source stage, which is used extensively for Device Characterisation, presents a very complex form of Device-Circuit Interaction, which makes reliable extraction of its intrinsic non-linear parameters extremely difficult. We show how pulse measurements can provide a straight forward access to parameters needed for Volterra Analysis and show the true nature of output conductance.
منابع مشابه
A Class E Power Amplifier with Low Voltage Stress
A new output structure for class E power amplifier (PA) is proposed in this paper. A series LC resonator circuit, tuned near the second harmonic of the operating frequency is added to the output circuit. This resonator causes low impedance at the second harmonic. The output circuit is designed to shape the switch voltage of the class E amplifier and lower the voltage stress of the transistor. T...
متن کاملA W-band Simultaneously Matched Power and Noise Low Noise Amplifier Using CMOS 0.13µm
A complete procedure for the design of W-band low noise amplifier in MMIC technology is presented. The design is based on a simultaneously power and noise matched technique. For implementing the method, scalable bilateral transistor model parameters should be first extracted. The model is also used for transmission line utilized in the amplifier circuit. In the presented method, input/output ma...
متن کاملDesign of an S-band Ultra-low-noise Amplifier with Frequency Band Switching Capability
In this paper, an ultra-low-noise amplifier with frequency band switching capability is designed, simulated and fabricated. The two frequency ranges of this amplifier consist of the 2.4 to 2.5 GHz and 3.1 GHz to 3.15 GHz frequency bands. The designed amplifier has a noise figure of less than 1dB, a minimum gain of 23 dB and a VSWR of less than 2 in the whole frequency band. The design process s...
متن کاملA Modified Noise Analysis of a Common Source ̶ Common Gate Low Noise Transconductance Amplifier for Sub-micron Technologies
This paper is based on analysis of a common source - common gate low noise transconductance amplifier (CS-CG LNTA). Conventional noise analyses equations are modified by considering to the low output impedance of the sub-micron transistors and also, parasitic gate-source capacitance. The calculated equations are more accurate than calculated equations in other works. Also, analyses show that th...
متن کاملA New Ultra-Wideband Low Noise Amplifier With Continuous Gain Control
This paper presents a new variable gain low noise amplifier (VG-LNA) for ultra-wideband (UWB) applications. The proposed VG-LNA uses a common-source (CS) with a shunt-shunt active feedback as an input stage to realize input matching and partial noise cancelling. An output stage consists of a gain-boosted CS cascode and a gain control circuit that moves the high resonant frequency to higher freq...
متن کامل