Ultrawideband radiators of high-power pulses

Koshelev, V. I.; Buyanov, Y.I.; Andreev, Y.A.; Plisko, V.V.; Sukhushin, K.N.

doi:10.1109/ppps.2001.961307

Cited by 8 publications

(8 citation statements)

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“…8 except that each damped sinusoids optoelectronic generator is connected to an antenna. The UWB antenna chosen for this application is based on the work of Koshelev [10] which combines a magnetic loop and the radiation mode of a traveling wave antenna (see Fig. 11(a)).…”

Section: Experimental Setups and Resultsmentioning

confidence: 99%

Optoelectronic generation of transient waveforms for UWB radars with rejected frequencies

Hyvernaud

Reineix

Andrieu

et al. 2020

Int. J. Microw. Wireless Technol.

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In this paper, a new design of an optoelectronic system for transient waveforms shaping, with a selection of rejected frequencies, is presented. The generation of short pulses is performed with several optoelectronic generators using photoconductive semiconductor switches (PCSS) operating in linear switching mode and triggered via a laser pulse. With the appropriate number of generators, the system generates a spectrum ranging from 300 MHz to 3 GHz, with rejected frequencies at 900 MHz and 1.8 GHz. A PCSS characterization has been set up to determine the necessary parameters for the establishment of an optoelectronic generator model on Keysight Advanced Design System software (ADS). Experimental tests have been realized using measurement benches to compare the simulated and measured signals.

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Section: Experimental Setups and Resultsmentioning

confidence: 99%

Optoelectronic generation of transient waveforms for UWB radars with rejected frequencies

Hyvernaud

Reineix

Andrieu

et al. 2020

Int. J. Microw. Wireless Technol.

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“…A signal was first shaped using a high voltage pulse generator (Kentech model PBG5, with a 250 ps rise-time measured from 10% to 90% of the amplitude value, a 2.4 ns duration measured at 50% of the peak value, and a 2 kV peak value for a 50 Ω load). Then, a Koshelev-like ultra wide band antenna [28] radiated this transient electromagnetic signal in the form of repetitive pulses (100 Hz pulse repetition frequency). This compact antenna (38.5 × 30 × 30 cm 3 ) has been designed and optimized by CISTEME [29] to widen the bandwidth from 200 MHz to 2 GHz.…”

Section: Electromagnetic Stimulation Design and Exposure Experimentsmentioning

confidence: 99%

Radiated Ultrashort High-Power Electromagnetic Pulses Induce ATP Release in B16F10 Murine Melanoma Cells

Macaire¹,

Catrain²,

Tortel³

et al. 2015

JEMAA

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Ultrawideband electromagnetic pulses with high amplitude and short duration are reported to affect several aspects of cell physiology. They are usually delivered to the living material through electrodes in small dedicated chambers. Here we showed, using a totally different experimental setup, that radiated EM pulses illuminating the living material through a specialized antenna (without any direct contact) are able to trigger a rapid release of ATP in cultured murine cells that was concomitant with a drop of intracellular AEC. Despite this rapid and strong response, we found that cell viability and clonogenicity were only slightly affected by the EMF exposure.

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“…The High Current Electronics Institute -HCEI -in Tomsk in Russia has developed an antenna (Koshelev et al, 2001;Efremov et al, 2006;Koshelev et al, 2006) which combines several radiating elements (figure 3): an electric monopole 1, two magnetic dipoles, 5 and 7 and a TEM horn, 6. The size of the loop, 5, is adjustable by the plate, 4.…”

Section: Specially Designed Antennasmentioning

confidence: 99%

“…The antenna array presented in this third part consists of K type antennas, the concept of which was defined by the HCEI team in Tomsk (Koshelev et al, 2001) already presented in section 1.2.4.2 of this paper. This antenna was designed to be integrated into a high power electromagnetic wave radiating system.…”

Section: Size Optimization Of the Single Element: The K Antennamentioning

confidence: 99%