Is magnetron used in microwave power amplifier?
Answers from top 7 papers
More filters
Papers (7) | Insight |
---|---|
16 Citations | The relativistic magnetron with diffraction output (MDO) is promising to be the most compact narrow band high power microwave source. |
They confirm the theory on high efficiency microwave power amplifiers. | |
40 Citations | Large-power and high-efficiency microwave sources based on power combining from magnetrons are good candidates for industrial applications. |
20 Citations | The obtained results demonstrate that the proposed virtual cathode amplifier scheme may be considered as the perspective high-power microwave amplifier with gain up to 18 dB, and with the following important advantages: the absence of external magnetic field, the simplicity of construction, the possibility of geometrical frequency tuning, and the amplification of relatively powerful microwave signals. |
19 Dec 2017 | Experimental results have demonstrated the effectiveness of this magnetron-driven system for microwave industry applications. |
17 Citations | It is shown that, under optimal conditions, the efficiency of the magnetron operation increases by ∼40% and the generated microwave power reaches the power of the electron beam. |
40 Citations | It is the first time to demonstrate a successful microwave power combining of dual 15-kW S-band CW magnetrons. |
Related Questions
Can microwave be used for rubber vulcanization?5 answersMicrowave can be used for rubber vulcanization. It has been found that microwave devulcanization of ground tire rubber (GTR) can effectively break the sulfur links in the rubber without damaging the polymeric chain. The selectivity and efficiency of microwave heating make it a promising approach for recycling waste rubbers, including end-of-life tires. The dielectric properties of the rubber polymer and other components of the formulation, such as carbon filler and vulcanization agents, play a significant role in the responsiveness to microwaves during the vulcanization reaction. By optimizing the microwave irradiation conditions, it is possible to achieve shorter heating times and energy savings. However, it is important to note that the physical quality of the rubber produced through microwave vulcanization may be poorer compared to vulcanization by electric furnace heating. Further research is needed to address this issue and improve the structure-property relationships of the vulcanized rubber obtained through microwave treatments.
How does microwave auditory effect work?4 answersThe microwave auditory effect occurs when a microwave pulse is absorbed by tissues in the head, resulting in the perception of sound. This phenomenon is unique because it involves electromagnetic waves, rather than the airborne or bone-conducted sound energy typically encountered in human auditory perception. The absorption of the microwave pulse creates a pressure wave that travels through bone conduction to the inner ear, where it activates the cochlear receptors, similar to the process involved in normal sound hearing. The mechanism behind this effect is known as the thermoelastic theory, which explains how the rapid expansion of brain matter due to microwave energy absorption launches an elastic wave of pressure that ultimately leads to sound perception. The microwave auditory effect can occur with both single microwave pulses and trains of microwave pulses, and the perceived sound can range from clicks and knocks to buzzes and tones.
Pulsed mode magnetron theroy ?5 answersPulsed mode magnetron theory involves studying the operation of continuous-wave (CW) magnetrons in a high-power pulsed mode. These magnetrons have a range of stable regulation of pulse power with high efficiency up to 8 kW, pulse durations from 0.3 μs to continuous mode, and repetition rates of at least 1 MHz. They can also form sequences of paired pulses with an adjustable time shift. The pulsed microwave power can be limited by emission current. In mixed-mode deposition of aluminum oxide films, a combination of magnetron sputtering and arc evaporation is used, with the transition to the arc occurring at a threshold discharge current. Ionized physical vapor deposition using pre-ionized pulsed magnetron discharges allows for effective ionization of the sputtered vapor, with the current pulse shape and duration modulating the transition to self-sputtering and the ion transport to the substrate. A pulsed magnet system has been developed for high magnetic field diffraction measurements, allowing for a wider scattering angle and observation of the field dependence of diffraction peaks.
Amplifiers for microwave applications4 answersAmplifiers for microwave applications are essential for various purposes such as power amplification, noise reduction, and signal readout. Different types of amplifiers, including single-stage amplifiers containing BJT or FET transistors, quantum-limited microwave parametric amplifiers, and linear power amplifiers, have been developed and studied. These amplifiers have been designed to achieve specific goals such as maximizing power gain and efficiency, minimizing noise, and ensuring stable performance. The choice of amplifier technology, impedance matching, and biasing conditions play crucial roles in the design of microwave amplifiers. The use of advanced simulation software, such as Advanced Design System (ADS), has been employed to achieve the desired goals in specific frequency ranges, such as the C band of microwave frequencies.
How to use an RF amplifier?8 answers
Which country has developed a relativistic klystron amplifier which can destroy satellites in space?8 answers