Abstract: The effect of using a tuning inductance on the performance of a Gilbert cell-based two level transistor CMOS sub-harmonic mixer is investigated. The tuning inductor used between the RF and LO switching stages causes conversion gain enhancement and noise figure improvement. Additionally, it compensates LO distortion due to the phase mismatch of LO signals in the sub-harmonic mixer. The...

This paper describes the implementation of the image rejection mixer block in the 5GHz frequency band using 0.18μm CMOS technology. The image rejection mixer block adopts the double-quadrature topology for high image-rejection ratio in the high frequency applications and is designed for the dual-conversion receiver. The loss of the polyphase filter in the signal path can be reduced with simple ...

We propose a non-equilibrium electrokinetic (EK) mixer with a nanoporous membrane fabricated on a microfluidic chip by laser polymerization technique. A non-equilibrium EK mixer had an array of nanochannels to generate a vortex using ion depletion and consequent electroconvection [1]. The nanochannels, however, require expensive and complicated fabrication processes. On the other hand, the lase...

In this paper we present a new circuit design for a 2.4GHz CMOS direct conversion mixer incorporating adaptive offset cancellation. The basic circuit structure is that of a Gilbert cell mixer. Offsets are cancelled by dynamically varying the bias on the loads, which are designed to provide constant impedance independent of the load cancellation current. The bias control is regulated via an adap...

Cross section fluctuations in nuclear scattering are briefly reviewed in order to show the main important features. Then chaotic scattering is introduced by means of a very simple model. It is shown that chaoticity produces the same kind of irregular fluctuations observed in light heavy–ion collisions. The transition from order to chaos allows a new general framework for a deeper understanding ...

In this article, we further consider the above system. In particular, we give a sufficient condition under which the above system is Kato chaotic for $eta=0$ and a necessary condition for the above system to be Kato chaotic for $eta=0$. Moreover, it is deduced that for $eta=0$, if $Theta$ is P-chaotic then so is this system, where a continuous map $Theta$ from a compact metric space $Z$ to itse...

We report the development of a low noise and broadband SIS mixer aimed for 1 THz channel of the Caltech Airborne Submillimeter Interstellar Medium Investigations Receiver (CASIMIR), designed for the Stratospheric Observatory for Far Infrared Astronomy, (SOFIA). In the SIS mixer are used the Nb/AlN/NbTiN junctions with the Josephson critical current density of about 40 KA/cm . The mixer is built...

The scaling of CMOS technology has greatly influenced the design of analog and radio-frequency circuits. In particular, as technology advances, due to the use of lower supply voltage the available voltage headroom is decreased. In this paper, after a brief overview of conventional low-power CMOS active mixer structures, we introduce an active mixer structure with sub-mW-level power consumption ...

This interactive demo features MIXER, a Virtual Learning Environment (VLE) consisting of synthetic characters representing the various actors in a scenario group difference scenario. MIXER creates virtual dramas by using interactive narrative with those characters. The goal is to enable children to identify social rule differences, by interacting with one of the characters to which they become ...

In this paper, the control over the second gate voltage in a dual-gate FET resistive mixer is employed for amplitude remodulating the response signal in a retrodirective array. A resistive mixer is integrated with an aperture coupled square patch, and a data signal voltage, Vg2s(t), is appropriately conceived in order to control the magnitude of the device time-varying output conductance. Measu...