Energy Conversion Efficiency in an Ultrawideband Pulse Emitter

Ostashev, V. E.; Ul’yanov, A. V.; Fedorov, V. M.

doi:10.1134/s1064226920030134

Cited by 6 publications

(7 citation statements)

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“…Our radiators [6][7][8][9]13,14] were emitting waves of the USEMP sub-nanosecond duration in the frequency range 0.1-6 GHz and with an effective voltage potential ER = 20-400 kV. These impulse waves, as simulators of EM interference with a peak strength of 5-30 kV/m, were successfully used for testing electronic devices for EM compatibility or immunity to the EMI.…”

Section: Schematics Of the S-tem-horn Antennae And Advantages For Radiations Within 01-6 Ghz Frequenciesmentioning

confidence: 99%

“…This article presents analyses of the results of our works [6][7][8][9]13,14] concerning the creation and optimization of the high-power radiators for ultra-short electromagnetic This simple design for a two-story antenna structure has been used in antennae with an aperture height H in ≥ 30 cm and pulse repetition rate of its excitation of 1 kHz. In the case of fast antenna excitation, we used plates between the upper and lower story with insulation plate between them [13].…”

Section: Schematics Of the S-tem-horn Antennae And Advantages For Radiations Within 01-6 Ghz Frequenciesmentioning

confidence: 99%

“…This article presents analyses of the results of our works [6][7][8][9]13,14] concerning the creation and optimization of the high-power radiators for ultra-short electromagnetic pulse waves with a linear polarization E-field and quasi-monopolar impulses. Below, we give analyses of the physical processes in classical and shielded TEM horn antennae.…”

Section: Schematics Of the S-tem-horn Antennae And Advantages For Radiations Within 01-6 Ghz Frequenciesmentioning

confidence: 99%

“…Transient responses of the antennae were studied by simulations using the electromagnetic 3D code KARAT at the time domain [12] and experimentally with the use of our strip-line sensors for measurements of the impulse E field strength with a 0.03 ns rise time and 7 ns duration of the traveling EM waves [13]. Estimation of the radiation parameters from the radiators was also being done by using analytical models [6,14].…”

Section: Introductionmentioning

confidence: 99%

“…The advantage of the HPEM radiators with antennae, which are excited by bipolar high-voltage impulses like in [15], is the relatively high factor of conversion of electrical pulse energy in pulsed EM radiation. The antennae are excited by monopolar high-voltage impulses, and the factor of conversion is about two times lower [14]. An obvious defect of the EM pulse with a broader spectrum is the lower spectral density of power in any frequency range.…”

Section: Introductionmentioning

confidence: 99%

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Antenna Array with TEM-Horn for Radiation of High-Power Ultra Short Electromagnetic Pulses

et al. 2021

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An antenna array with short shielded transverse electromagnetic horns (S-TEM-horns) for emitting high-power radiation of ultra-short electromagnetic pulses (USEMP) has been created and researched. The antenna unit consists of an ultra-wideband antenna array with four S-TEM horns, with each connected to a two-wire HF transmission line, and these four lines are connected to an antenna feeder. This feeder is connected to a semiconductor generator with the following parameters: a 50 Ohm connector, 10–100 kV high-voltage monopolar pulses, a rise time of about 0.1 ns, FWHM = 0.2–1 ns, and pulse repetition rates of 1–100 kHz. The antenna array was designed and optimized to achieve a high efficiency of about 100% for the antenna aperture by using a 2 × 2 array with S-TEM-horns, with shielding rectangular plates for the return current. The transient responses were studied by simulation using the electromagnetic 3D code “KARAT” at the time domain and experimentally with the use of our stripline sensor for measurement of the impulse electrical field with a 0.03 ns rise time and a 7 ns duration at the traveling wave. The radiators were emitting USEMP waves with a hyperband frequency spectrum of 0.1–6 GHz. The radiation with an amplitude of 5–30 kV/m of the E-field strength at a distance of up to 20 m was successfully applied to test the electronics for immunity to electromagnetic interference.

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Section: Schematics Of the S-tem-horn Antennae And Advantages For Radiations Within 01-6 Ghz Frequenciesmentioning

confidence: 99%

Section: Schematics Of the S-tem-horn Antennae And Advantages For Radiations Within 01-6 Ghz Frequenciesmentioning

confidence: 99%

“…This article presents analyses of the results of our works [6][7][8][9]13,14] concerning the creation and optimization of the high-power radiators for ultra-short electromagnetic pulse waves with a linear polarization E-field and quasi-monopolar impulses. Below, we give analyses of the physical processes in classical and shielded TEM horn antennae.…”

Section: Schematics Of the S-tem-horn Antennae And Advantages For Radiations Within 01-6 Ghz Frequenciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations