We describe electronic instruments for creation of effective Cooper pair spectroscopy. The suggested spectroscopy requires study electric field effects on the surface cleaved superconductors. instrument reacquires low noise amplifier with 10$^6$ amplitude amplification which we have formerly used Johnson-Nyquist and Schottky noises. nonspecific is followed by high-Q tunable resonance filter bas...

Introduction The need for highly efficient, linear microwave power amplifiers has grown rapidly, especially as mobile and satellite communication systems have been developed and expanded [1]. These systems employ multilevel digital modulation techniques to achieve higher-data-rate and multimedia services. This results in a band-limited multi-carrier signal, which is spectrally efficient but exh...

A biopotential acquisition analog front-end (AFE) integrated circuit (IC) is presented. The biopotential AFE includes a capacitively coupled chopper instrumentation amplifier (CCIA) to achieve low input referred noise (IRN) and to block unwanted DC potential signals. A DC servo loop (DSL) is designed to minimize the offset voltage in the chopper amplifier and low frequency respiration artifacts...

Abstract The conventional electrical model analogy of a RF cavity is a shunt RLC circuit supplied by two current sources representing the RF amplifier and the beam. In the literature, the impedance of the cavity is often calculated in the Fourier domain. This type of cavity modelling has two drawbacks: First, it assumes a perfect matching between the cavity and the amplifier therefore it neglec...

The HGC loaded with MA cores has been developed[1] for the JHF (Japan Hadron Facility) proton synchrotrons. The maximum voltage of 20 kV has been obtained by the cavity of 40 cm in length. The cavity was driven by a pushpull amplifier using two 150 kW tetrodes. The frequency sweeping from 1 to 5 MHz has been achieved without any tuning circuit because of its broadband characteristics of the MA-...

This paper describes a 60-GHz differential power amplifier (PA) designed in a 120-GHz fT 90nm CMOS technology. It consists of three identical differential cascode stages with inter-stage matching implemented by wide-gap coplanar waveguide (CPW) structures and M6M5 plate capacitors. A double-stub network realized by CPWs provides more design freedom for the input matching. Load-pull simulation g...

This report describes development oü analytical techniques necessary for design of systems using fluldlc components. It covers the analytical and experimental work on five separate tasks intended to extend the usefulness of previously conceived methods. The results lead to the following conclusions: 1) Valid equivalent circuits have been developed to describe the dynamic behavior of most fluid ...

1. Introduction Recently, a multi-standard transceiver has started to attract more attention with the overwhelming increase of various wireless standards that covers different frequency bands and uses diverse modulation standards. Moreover, the realization of a single chip that covers all the standards is desired for low-cost and downsizing. For this reason, a power amplifier that can tune the ...

General conditions for minimizing the noise figure of any linear two-port are reviewed before considering the specific case of a MOSFET low-noise amplifier (LNA). It is shown that the minimum noise figure cannot be obtained over an arbitrarily large bandwidth with networks of low order. For narrowband operation, however, one may construct simple amplifiers whose noise figure and power gain are ...

Quantum limited amplifiers are sought after for a wide range of applications within quantum technologies and sensing. One promising candidate is the travelling wave parametric amplifier which exploits the non-linear kinetic inductance of a superconducting transmission line. This type of microwave amplifier promises to deliver a high gain, a quantum limited noise performance over several GHz ban...