The characterization of a 1.1-1.7 THz planar Schottky-diode mixer is described. Initial measurements yielded a mixer noise temperature of 5900 K (DSB) and conversion loss of 12 dB (DSB) at 1.57 THz. The responsivity of the mixer was measured to be higher than 200-400 V/W over the frequency range 1.1-1.5 THz. Also, the same diode was used as a 2nd harmonic mixer as part of a solid-state 1.45-1.5...

Absrracl A highly linear CMOS RF amplifier and mixer circuits adopting MOSFET transconductance linearization bv linearlv suoemosine several commonTherefore it is very important to linearize MOSFET transconductance for both RF amplifier and mixer circuits. We have shown that multide eated transistor (MGTR) 111 ~ _ . source FET transistors in parallel, combined with some additional circuit techni...

We describe the design, fabrication, and the performance of a low-noise dual-polarized quasi-optical superconductor insulator superconductor (SIS) mixer at 550 GHz. The mixer utilizes a novel crossslot antenna on a hyperhemispherical substrate lens, two junction tuning circuits, niobium trilayer junctions, and an IF circuit containing a lumped element 180 hybrid. The antenna consists of an orth...

A planar millimeter-wave third-harmonic mixer with low conversion loss is proposed. The mixing circuit consists of a substrate-integrated waveguide (SIW) balun, a pair of diodes, a diplexer and microstrip matching circuit. The mixer is ideal for use as down-converter and up-converter. For a fixed intermediate frequency (IF) of 2 GHz, the mixer has an up-conversion loss of 14.5-15.6 dB and a dow...

In this study, a dynamic mixer was designed to mix polymer melts online during extrusion, and the flow of melt in simulated using Polyflow software. The Orthogonal experiment conducted analyze effects three geometrical parameters (i.e. length entrance zone (Li), gap between rotor wall (g), diameter cone-shaped (d2)) on mixing properties mixer. Li, g, d2 were optimized for minimum product segreg...

Using a superconducting circuit, the Josephson mixer, we demonstrate the first experimental realization of spatially separated two-mode squeezed states of microwave light. Driven by a pump tone, a first Josephson mixer generates, out of quantum vacuum, a pair of entangled fields at different frequencies on separate transmission lines. A second mixer, driven by a π-phase shifted copy of the firs...

This paper presents the design and analysis of Ultra Wideband (UWB) mixer in 65nm CMOS technology. To achieve the optimized performance, a new mixer topology is suggested. The performance parameters of the mixer viz.: conversion gain, Noise Figure, linearity and power consumption are addressed in this paper. The simulation results of the new mixer topology suggested in this paper achieves the r...

The hydrodynamic characteristics of mixing fluids are always the points to consider in improvement their quality especially using motionless mixers normally stated as “Static Mixers”. Motionless technique was adopted for Air-Water system with advantage negligible power consumption over dynamic mixers. Different were experimented “Baffle Type” static element and compared those already used recen...

In this paper, we present results on the noise performance of the waveguide Niobium Titanium Nitride (NbTiN) superconducting hot electron bolometer (HEB) mixers, cryogenically cooled by a 4-K close-cycled refrigerator. The NbTiN superconducting HEB mixer is fabricated on a crystalline quartz substrate, and is mounted in a waveguide mixer block for RF and LO coupling. At 0.81 THz, the uncorrecte...