[Show abstract][Hide abstract] ABSTRACT: The microwave pulse compression uses the capability of a resonant cavity for amplification of the field strength of an exciting falling wave about 20 dB and beyond. Basics of microwave pulse compressor operation and main parameters achieved are presented.
[Show abstract][Hide abstract] ABSTRACT: A generator of high-power Ku-band microwave pulses with resonant pulse compression is described. It allows thestepped control of output-pulse durations from 1 ns to 1.5 s at a pulse repetition rate of 0.2–1.5 kHz and a peak power of 58 kW to 10 MW. This source can be used for investigating the interaction of electromagnetic radiation with various objects.
No preview · Article · Apr 2004 · Instruments and Experimental Techniques
[Show abstract][Hide abstract] ABSTRACT: An experimental study of a resonance microwave (3-cm-range) compressor with gas insulation and energy output through a superdimensional coaxial interference switch is reported. The rated parameters of the compressor are output signal power similar to 25 MW, signal duration 2 ns, gain 26 dB, and efficiency similar to 57%. A gain of 20 dB was achieved at a peak output signal power of 12 MW, signal duration of 2 ns, efficiency of similar to 24%, and traveling wave power of 24 MW. (C) 2000 MAIK "Nauka/Interperiodica".
No preview · Article · Nov 2000 · Technical Physics
[Show abstract][Hide abstract] ABSTRACT: It was shown experimentally that the pulse power output of a resonant microwave compressor with an oversized cavity and an
interference switch used for energy extraction could be increased using a package of interference switches with summation
of the output signals instead of a single switch. The use of two switches for energy extraction provided an almost twofold
increase in the output signal power and a corresponding (almost twofold) decrease in the signal duration. It is shown that
energy extraction through four switches with signal summation is possible.
No preview · Article · Oct 2000 · Technical Physics
[Show abstract][Hide abstract] ABSTRACT: Resonant microwave pulse compression is a simple method for
producing nanosecond microwave pulses of peak power up to GW level.
Designs of microwave compression devices, compressors, in X, S and
I-band have more practical form when their storage cavities are
developed on the basis of singlemode waveguide or coaxial lines, and the
energy is extracted through interference switches due to microwave
[Show abstract][Hide abstract] ABSTRACT: For boosting the peak power of microwave radiaton pulses emitted by a mass-produced magnetron, a two-stage series-resonance microwave pulse compression system is connected to its output. The magnetron generated pulses with a power of up to 2.5 MW, a length of 3 mu s, and a repetition rate of up to 400 Hz. After the first compression stage, microwave pulses with a peak power of 150 MW and a length of 11 ns at a 3-dB level were obtained; after the second stage, these parameters were 1 GW and similar to 1 ns.
No preview · Article · Jan 2000 · Instruments and Experimental Techniques
[Show abstract][Hide abstract] ABSTRACT: It is shown experimentally that in order to increase the stored energy in storage resonators using compressed gas, it is preferable to have oscillation modes in which the electrical components of the fields do not interact with the inner surfaces of the resonator.
No preview · Article · Nov 1998 · Technical Physics
[Show abstract][Hide abstract] ABSTRACT: The process of forming high-power nanosecond radio pulses by the technique of resonance compression of the microwave energy in the overdimensional resonator with the interference-type switch is analyzed. The properties of this process are revealed. The functional relationship between characteristics of the resonance system and parameters of the formed pulses is established. The process of pulse forming is studied experimentally. The experimental and theoretical results are compared. A simple technique for calculating characteristics of this system is presented and the potential parameters of pulses formed by this system are evaluated.
[Show abstract][Hide abstract] ABSTRACT: An analysis is made of the possibility of using a commercial microsecond microwave oscillator, supplemented by a device for time compression of microwave pulses, in pumping of industrial lasers with a high efficiency of conversion of the pump source energy into laser radiation. The results are reported of preliminary experiments on the commissioning of an excimer XeCl laser.
[Show abstract][Hide abstract] ABSTRACT: The microwave pulse energy compression method supplies power amplitication factor of about numbers of tens. It, is probable to yield microwave pulses of 10–10 W power and 1 ns width in L, and S-bands by utilizing relativistic generators as exiting sources. This report covers the first experimental data of the time energy compression of the output pulse radiation of the relativistic virtual cathode triode and cycletron resonance vircator.
[Show abstract][Hide abstract] ABSTRACT: Present paper represents the results of theoretical and experimental in - vestigation on studying a generation mechanism and improving a radiation efficiency in a virtual cathode triode. It shows the possibility to produce a new type of a high-frequency monochromatic radiation generator with a frequency tuned.
[Show abstract][Hide abstract] ABSTRACT: The paper reports the generation of high-power nanosecond-duration
microwave radiation using a relativistic triode with a virtual cathode
and a microwave-energy resonant storage device with rapid output. This
system of microwave-pulse generation is superior to other relativistic
devices in its simplicity and in its small size and low weight at a
power level of 10 to the 8th to 10 to the 9th W with a frequency
stability of 0.003-0.0004.
No preview · Article · Jan 1989 · Doklady Akademii nauk SSSR
[Show abstract][Hide abstract] ABSTRACT: This paper presents the results of an investigation of the operation of a waveguide switch in a generator of high-power nanosecond microwave pulses at different gas (nitrogen) pressures. An oscillator having a frequency of 2. 85 GHz, a power of 1. 5 mw and a pulse duration of 3 multiplied by 10** minus **6 sec was used as the source of microsecond microwave pulses. The results obtained enables one to choose the optimum operating regime of the nanosecond microwave pulse oscillator.
[Show abstract][Hide abstract] ABSTRACT: The results of an experimental investigation of the breakdown of a narrowed waveguide section by high-power microwave pulses of nanosecond duration at pressures of 6. 5 multiplied by 10**3-10**5 Pa are presented. The pulse has a triangular shape, a 100-nsec base-line duration, a peak power of 22 MW and a frequency of 2. 88 GHz. Data are obtained that show that pulses with a power of P//p//u//l//s//e equals 50 MW can be transmitted in a standard waveguide at atmospheric pressure.
[Show abstract][Hide abstract] ABSTRACT: We present the results of experimental investigations of a high-power vacuum waveguide switch in a system for generating nanosecond microwave pulses. We consider some ways of increasing the stability of the energy extraction from low-Q resonant systems.