In this work we present a microwave intracavity sensor for the characterization of aqueous solutions nano-liter sessile droplets, deposited on microstrip line electrode. The operates at frequency and is based tunable magnonic delay oscillator. samples were characterized by using their evaporation dynamics, measuring dielectric constants. experiments have shown that capable detecting salinity (S...

We study the effect of Kerr nonlinearity in quantum thermal machines having a Kerr-nonlinear oscillator as working substance and operating under ideal Otto cycle. first investigate efficiency heat engine show that by varying strength surpasses up to 2.5 times harmonic engine. Moreover, Kerr-nonlinearity makes coefficient performance refrigerator be large 3 refrigerators. These results were obta...

There has been increased interest in the use and manipulation of optical fields to address the challenging problems that have traditionally been approached with microwave electronics. Some examples that benefit from the low transmission loss, agile modulation and large bandwidths accessible with coherent optical systems include signal distribution, arbitrary waveform generation and novel imagin...

A ring reflector was experimentally investigated using an axial virtual cathode oscillator (vircator). The installed behind the mesh anode of vircator to enhance microwave power output by forming a resonant cavity and increasing electron beam energy conversion efficiency. optimum position is analyzed through simulations experiments varying distance from 6 mm 24 in 3 steps. PIC show that enhance...

The use of the properties of the plasma generated inside the glow lamps or gas filled electron tube as an unconventional detection method for various physical effects was reported in several papers. For example in [1], [2] the experimental setups containing discharge tubes used to detect the external microwave field are presented. In this paper the effect of an external electrode on the electri...

This paper presents an overview of the terahertz (THz) resonant tunneling diode (RTD) technology that will be used as one of the approaches towards wireless data centres as envisioned on the EU H2020 TERAPOD project. We show an example 480 m × 680 m THz source chip at 300 GHz employing a 4 μm × 4 μm RTD device with 0.15 mW output power. We also show a basic laboratory wireless setup with this...

A low-cost, high-performance -band Gunn diode oscillator for educational and research purposes has been developed. The cavities have been manufactured on a standard WR90 rectangular waveguide with UBR100 flange in order to make it compatible with the waveguide circuitry usually available in a basic microwave laboratory. The capability of sweeping the whole band at constant output power and low ...

Traditional Marx generators have been primarily reserved for energy storage and pulse-charging sources. However, recent work has demonstrated the Marx generator’s effectiveness in delivering ultra-short impulses at very intense power levels. This paper discusses two very compact Marx generators capable of delivering voltage pulses of several hundred kV, durations of several nano-seconds to 10’s...

Nonlinear properties of high-temperature superconducting (HTS) strongly coupled resonators at different input power have been investigated by measurements of the quality factor as a function of input power as well as by generation of the intermodulation distortion (IMD). The double-sided YBCO films on CeO2 buffered sapphire demonstrate advanced performance with the microwave surface resistance ...

The dynamical behaviour of the forced escape oscillator, which depends on the parameter values we considered, have been studied numerically using the techniques of phase portraits and Poincar'{e} sections. Also, we employed perturbation methods such as Lindstedt's method to obtain the frequency-amplitude relation of escape oscillator.