Quasisteady-state electric fields of sources in a dilute plasma

Андронов, А. А.; Chugunov, Yu. V.

doi:10.1070/pu1975v018n05abeh001960

Cited by 20 publications

(14 citation statements)

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“…Therefore, one should use the effective temperature T eff instead of the temperature T (see, e.g., [2]). …”

Section: Calculation Of the Noise Voltagementioning

confidence: 99%

“…The effective temperature T eff (ω, k) of the non-equilibrium radiation, in its turn, is determined by the spectral energy density W in (ω, k) = k 2 T eff (ω, k)/(2π) 3 of the electromagnetic field around the receiving antenna [2,3]. Thus, the fluctuation-dissipation theorem formulates the principle of detailed equilibrium, which in this case is the equilibrium between the radiation field incident on the receiving antenna and the scattered field (see [2,4,5] for more detail).…”

Section: Introductionmentioning

confidence: 99%

“…Thus, the fluctuation-dissipation theorem formulates the principle of detailed equilibrium, which in this case is the equilibrium between the radiation field incident on the receiving antenna and the scattered field (see [2,4,5] for more detail). With these remarks taken into account, Eq.…”

Section: Introductionmentioning

confidence: 99%

“…The coefficient of proportionality between these quantities is the effective temperature T eff (ω, k) of the nonequilibrium radiation which in the equilibrium situation is replaced by the plasma temperature [2,4,5].…”

Section: Introductionmentioning

confidence: 99%

“…Equation (4) can be integrated in a fairly general form for a low-density isotropic plasma by specifying the dielectric permittivity as follows [2,4]:…”

Section: Introductionmentioning

confidence: 99%

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A theory of a receiving antenna in a moving isotropic plasma

Chugunov

Fiala

2009

Radiophys Quantum El

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We analyze the response of a dipole antenna to the noise-like and/or regular (quasimonochromatic) plasma oscillations and waves. The antenna is immersed in an isotropic plasma moving with velocity greater than the electron thermal velocity. In the case of a noise field, we calculate the squared spectral power density of the noise voltage at the input of a receiving antenna for frequencies close to the electron plasma frequency. It is shown that the main contribution to the noise is made by the radiation due to the excitation of waves at anomalous Doppler frequencies.In the case of an incident monochromatic wave, the mean square voltage at the antenna input is calculated as a function of the wave frequency and angle of arrival. It is shown that the effective antenna length can differ strongly from the geometrical length of the dipole. This fact results from the dispersion of longitudinal waves ensuring that many plane waves (a continuum, in the limiting case) contribute to the re-radiated field for a given direction of propagation of the radiation energy.

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“…Therefore, one should use the effective temperature T eff instead of the temperature T (see, e.g., [2]). …”

Section: Calculation Of the Noise Voltagementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Equation (4) can be integrated in a fairly general form for a low-density isotropic plasma by specifying the dielectric permittivity as follows [2,4]:…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A theory of a receiving antenna in a moving isotropic plasma

Chugunov

Fiala

2009

Radiophys Quantum El

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Effective length of a receiving antenna in case of quasi‐electrostatic whistler mode waves: Application to spacecraft observations of chorus emissions

et al. 2017

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We propose a method for calculating the receiving antenna effective length in the case of reception of quasi‐electrostatic whistler mode waves in plasmas and apply it to the spacecraft observations of oblique VLF chorus waves. The method is based on the reciprocity theorem and requires an appropriate choice of the radiation source. Such a choice is possible on the basis of the measured emission parameters if a quasi‐monochromatic (i.e., having narrow instant width of the dynamic spectrum) wave packet with wave normal angles near the resonance cone is detected. We analyze several typical chorus events detected by Time History of Events and Macroscale Interactions during Substorms spacecraft and show that the effective length of receiving antenna can be more than an order of magnitude greater than the geometric length.

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The properties of antennas in plasmas

Balmain

1979

Ann. Telecommun.

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Quasisteady-state electric fields of sources in a dilute plasma

Cited by 20 publications

References 0 publications

A theory of a receiving antenna in a moving isotropic plasma

A theory of a receiving antenna in a moving isotropic plasma

Effective length of a receiving antenna in case of quasi‐electrostatic whistler mode waves: Application to spacecraft observations of chorus emissions

The properties of antennas in plasmas

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