TECHNOLOGIES & APPLICATIONS

SOURCES OF HIGH-POWER DIRECTED WAVE BEAMS OF ULTRAWIDEBAND ELECTROMAGNETIC RADIATION

Purpose

The generators of high-power (100-1000 MW) linearly polarized unidirectional wave beams of ultrawideband (with the spectrum edge frequency ratio ≥

Fig.1. A 3-ns source with a single antenna.	Fig.2. A 2-ns source with a single antenna.
Fig.3. A 1-ns source with a single antenna.	Fig.4. A 0.5-ns source with a single antenna.
Fig.5. A 3-ns source with a 4-element array.	Fig.6. A 2-ns source with a 16-element array.
Fig.7. A 1-ns source with a 16-element array.	Fig.8. A 0.5-ns source with a 16-element array.

Parameters of ultrawideband radiation sources
Fig.	Voltage pulse length¹, ns	Voltage pulse ampli-tude, kV	Repeti-tion rate², Hz	Pattern width³, degrees	Radia-tion power, MW	Effective potential EpR, kV	Dimensions LеWеH, cm	Weight, kg	Consu-med power, kW
1	3	100	100	120x120	120	100	140x40x180	200	0.5
2	2	230	100	80x90	1000	400	250x60x170	300	1.5
3	1	200	100	80x90	780	300	230x50x170	300	1.5
4	0.5	200	100	90x110	600	260	220x50x170	300	1.5
5	3	200	100	60x60	-	500	320x130x230	700	3.5
6	2	230	100	20x20	-	1700	330x130x220	400	1.5
7	1	200	100	20x20	-	800	300x120x190	350	1.5
8	0.5	200	100	20x20	-	700	280x50x170	320	1.5
¹A bipolar voltage pulse length by the amplitude level of 0.1. ²Repetition rate is controlled in the limits of 1-100 Hz. ³A pattern width by the half-level of the peak power in the horizontal and vertical planes.

АActuality

The novelty of the sources proposed is that they use conceptually new combined radiators and antenna arrays based on these radiators and excited by high-power bipolar voltage pulses. The efficiency of the conversion of electric pulses into electromagnetic radiation by energy and peak power reaches 90%.

Analogs

No analog has come to the authors' notice.

Full-scale testing results

Full-scale testing of the systems has shown that they are capable to generate with high reliability and reproducibility ultrawideband radiation pulses with the parameters listed in Table.

Suggestions for collaboration

It is suggested to sell the ultrawideband radiation sources on the partnership basis and to develop new versions of the sources in accordance with customer's assignments.

Vladimir I. Koshelev
Professor, Dr. Sci. (Phys. & Math.), Laboratory Head

Phone: (3822) 49-19-15
Fax: (3822) 49-24-10
E-mail: koshelev@lhfe.hcei.tsc.ru

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