By Edmar Camargo
Introducing the applying of box influence Transistors (FET) as frequency multipliers and harmonic oscillators, this article places emphasis on nonlinear strategies, and incorporates a minimum quantity of arithmetic and a mixture of conception and experimentation. It goals to aid microwave and millimeter-wave engineers understand the elemental ideas and layout principles of frequency multipliers and harmonic oscillators. The textual content specializes in the thoughts required to generate harmonics and emphasizes circuits. It explores the layout of slim and bandwidth doublers and triplers - either single-ended and balanced configuration. It additionally explains the organization among oscillator conception and frequency multiplier thought in designing harmonic turbines. the $64000 concerns whilst utilizing MIC or MMIC applied sciences are mentioned to assist designers decide upon the easiest procedure for a specific circuit.
Read or Download Design of FET frequency multipliers and harmonic oscillators PDF
Best microwaves books
This publication provides the interdisciplinary box of sturdy electrodynamics and its functions in superconductor and microwave applied sciences. It supplies scientists and engineers the root essential to care for theoretical and utilized electromagnetics, continuum mechanics, utilized superconductivity, high-speed digital circuit layout, microwave engineering and transducer expertise.
This e-book offers with microwave electronics, that's to assert these elements of microwave circuits that generate, enlarge, become aware of or modulate indications. it truly is in response to a direction given within the electric Engineering division of Eindhoven collage due to the fact that 1985 and on approximately two decades of expertise within the microwave box.
Joseph F. White has studied, labored, and taught in all elements of microwave semiconductor fabrics, keep watch over diodes, and circuit purposes. he's completely grounded within the physics and math ematics of the sphere, yet has essentially the engineer's point of view, combining easy wisdom with adventure and ingenuity to gen erate useful designs less than constraints of required functionality and prices of improvement and creation.
This ebook provides rules and purposes to extend the space for storing from 2-D to three-D or even multi-D, together with grey scale, colour (light with diverse wavelength), polarization and coherence of sunshine. those actualize the advancements of density, means and knowledge move cost for optical facts garage.
- Power RF Circuit Design in Standard CMOS Technology
- Free-Space Laser Communications: Principles and Advances
- Two-Dimensional Transition-Metal Dichalcogenides
- Novel Technologies for Microwave and Millimeter — Wave Applications
- Electromagnetic fields in biology and medicine
- Progress in Optomechatronic Technologies: Proceedings of the 2013 International Symposium on Optomechatronic Technologies, Oct 28–30, 2013, Jeju Island, Korea
Additional info for Design of FET frequency multipliers and harmonic oscillators
It is seen that for Al the largest concentration of neutral particles was obtained for 30 ns delay for both heating pulses, while for Cu better results were found for 40 ns delay. One should note that, at given HHG conditions (driving pulse is not ultrashort, plasma is not very dense, no resonant absorption is present), the plasma concentration influences the HHG yield mainly in two ways. It increases the number of particles participating in HHG, and thus HHG intensity grows with the increase of the concentration, and further it increases the number of the free electrons, which influence HHG efﬁciency in a rather complicated way.
We analyze the reported results of harmonic generation from mono- and nanoparticle- containing plasma plumes, compare the harmonic yields from Zn, Cu, and brass alloy to address the issue of interference of harmonic generation from species of different origin, and ﬁnally compare the HHG efﬁciencies from gaseous (argon) and plasma (carbon) media at comparable conditions . A 1 kHz repetition rate chirped pulse ampliﬁcation Ti:sapphire laser was used as the laser driving source. The scheme of HHG was similar to the one described in Sect.
The position of the focus relative to the plume was chosen to maximize the harmonic output. HHG experiments were also performed using the femtosecond pulse with 40 fs duration as ablating pulse. 6 mJ for the heating and the harmonic driving pulses (Fig. 10a). The harmonic emission was analyzed using an XUV spectrometer consisting of a flat ﬁeld grating and MCP detector coupled to a phosphor screen. The images of harmonics were captured using a cooled CCD camera. The XUV spectrometer allowed the registration of the 11th to 23rd harmonics of 800 nm radiation.