We performed a novel phase-sensitive microwave reflection experiment which directly probes the dynamics of the Josephson plasma resonance in both the linear and the nonlinear regime. When the junction was driven below the plasma frequency into the nonlinear regime, we observed for the first time the transition between two different dynamical states predicted for nonlinear systems. In our experi...

This study proposes a 24 GHz FMCW radar system to detect the 3-dimensional location of target. To determine azimuth and elevation angles target, proposed includes seven transmitters, illuminating between −17.5° 17.5° with 5° resolution, receiver 2×4 array. Instead using conventional switch, beam steering is performed by directly switching power amplifier transmitter. Experimental results show t...

The specification of load current transient response at the output of a power supply is subject to requirements related not only to the load transient demand itself – specifically load current step magnitude and slew rate – but also to the characteristics of the power supply. In general, the voltage regulator control loop design constitutes an important element and when fast transient response ...

We present measurements of the power noise due to optical amplification in a Nd:YAG free-space traveling-wave amplifier as the amplifier transitions from the linear regime into the heavily saturated regime. The quantum noise behavior is demonstrated by saturating the gain of a 100-W class zigzag slab amplifier with a high-power beam and measuring the power noise detected by a single-spatial-mod...

A 2.4-GHz single-stage CMOS low noise amplifier (LNA) structure with ultra low power consumption is proposed. A current reuse technique is used to decrease power dissipation with increasing amplifier transconductance for the LNA. Thus, the same amplifier transconductance for the LNA will be achieved at decreased power dissipation. Also, due to the use of an inverter-type amplifier which has a s...

We present a high power, single-frequency fiber amplifier based on master oscillator power amplification (MOPA) chains in all-fiber configuration. A 1.5 meter long highly doped Yb fiber with absorption coefficient as high as 16 dB/m at the 975 nm wavelength is used for the main power amplifier, no special assistant stimulated Brillouin scattering (SBS) suppression approach is employed. The maxi...

ARTICLE INFO In many applications it is required to control a large output load using a relatively low control force. To satisfy such purposes, device like mechanical power amplifier can be used which generally gives very fast response. As per the requirement of the system, power can be instantaneously available from continuously rotating drums of mechanical power amplifier. This project will f...

In this paper we design the low-power CMOS limiting amplifier using negative impedance, the purpose of using negative impedance is to increase the gain of the amplifier. low-power operations are also done using all the active elements. The LA was implemented in a standard CMOS 0.18um technology. This limiting amplifier is designed for the instrumentation(bio-medical) application. Gain of the am...