We investigate the deterministic generation and distribution of entanglement in large quantum networks by driving distant qubits with output fields a nondegenerate parametric amplifier. In this setting, amplifier produces continuous Gaussian two-mode squeezed state, which acts as quantum-correlated reservoir for relaxes them into highly entangled steady state. Here we are interested maximal amo...

Editor’s notes: This article presents a method for designing bandpass (BP) negative group delay (NGD) active circuits. The circuit topology consists of distributed BP NGD passive cascaded with microwave amplifier. design is validated through simulations and measurements prototype implementation...

Background and Objectives: In this paper, a new design strategy was proposed in order to enhance bandwidth and efficiency of power amplifier. Methods: To realize the introduced design strategy, a power amplifier was designed using TSMC CMOS 0.18um technology for operating in the Ka band, i.e. the frequency range of 26.5-40GHz. To design the power amplifier, first a power divider (PD) with a ver...

This author; a leading proponent of the transmission of power via microwave beams, describes how the common microwave oven magnetron can be externally locked to provide 30 dB of gain-resulting in a 500 watt, 70% eficient, $15, coherent microwave source. T he 2450 MHz magnetron which supplies 700 watts of average power to the ubiquitous microwave oven is made in a quantity of 15,000,000 units an...

Abstract We present the simulated performance of a Josephson traveling wave parametric amplifier based on one-dimensional array radio-frequency single-junction superconducting quantum interference devices. Using capabilities allowed by WRspice simulation platform and previous works this scheme, we include in our study effects fabrication tolerances device parameters gain amplifier. Our simulati...

We study a parametrically driven nanomechanical resonator capacitively coupled to a microwave cavity. If the nanoresonator can be cooled to near its quantum ground state then quantum squeezing of a quadrature of the nanoresonator motion becomes feasible. We consider the adiabatic limit in which the cavity mode is slaved to the nanoresonator mode. By driving the cavity on its red-detuned sideban...

We present a technique to locally and rapidly heat water drops in microfluidic devices with microwave dielectric heating. Water absorbs microwave power more efficiently than polymers, glass, and oils due to its permanent molecular dipole moment that has large dielectric loss at GHz frequencies. The relevant heat capacity of the system is a single thermally isolated picolitre-scale drop of water...

This short paper presents a work on the design of low noise microwave amplifiers using particle swarm optimization (PSO) technique. Particle Swarm Optimization is used as a method that is applied to a single stage amplifier circuit to meet two criteria: desired gain and desired low noise. The aim is to get the best optimized design using the predefined constraints for gain and low noise values....

Abstract This paper describes an air cavity quad‐flat no‐leads (QFN) over‐molded plastic packaged cascode broadband GaN LNA Monolithic Microwave Integrated Circuit (MMIC) with resistive feedback fabricated 0.25 μm HEMT technology. The single stage QFN MMIC achieves a bandwidth of 0.03–2.6 GHz typical gain 11.5 dB and less than 1.5 noise figure. low amplifier (LNA) design is based on model conce...

This paper presents a new negative resistance (NR) network which is designed to compensate losses in a distributed amplifier (CDA). The byproduct of the new NR network in the CDA is significant improvement of bandwidth (~20%). The simplicity of the NR network makes it amenable to MMIC technology and for other applications too.