This paper presents a 23–32 GHz wideband BiCMOS low-noise amplifier (LNA). The LNA utilizes coupled-resonators to provide a wideband load. To our knowledge, the proposed LNA achieves the widest bandwidth with minimum power consumption using 0.18 m BiCMOS technology in K-band. Analytical expressions for the wideband input matching, gain, noise figure and linearity are presented. The LNA is imple...

A 1.8 GHz low-noise amplifier has been designed and fabricated in a standard 0.35 pm CMOS process. Measurement results indicate that the amplifier has a forward gain (S21) of 10.5 dB and a noise figure of 3.94 dB, while consuming 40 mW from a 2.5 V supply.

Abstract. This paper reports on the influence of the gate length reduction on the noise performance of strained-Si surface channel MOSFETs for very low power applications. When the gate length is reduced from 100nm to 20nm an increase of the current gain is achieved that nearly doubles the cut-off frequency of the transistor. This is counterbalanced by a deterioration of the noise figure and th...

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...

The non-zero response time of the Kerr (χ) nonlinearity determines the quantum-limited noise figure of χ parametric amplifiers. This non-zero response time of the nonlinearity requires coupling of the parametric amplification process to a molecular-vibration phonon bath, causing the addition of excess noise through Raman gain or loss at temperatures above 0K. The effect of this excess noise on ...

Amplified dispersive Fourier transformation (ADFT) is a powerful tool for fast real-time spectroscopy as it overcomes the limitations of traditional optical spectrometers. ADFT maps the spectrum of an optical pulse into a temporal waveform using group-velocity dispersion and simultaneously amplifies it in the optical domain. It greatly simplifies spectroscopy by replacing the diffraction gratin...