Frequency Modulation Of Free Space R.F. Signals

Alexeff, I.; Dyer, F. B.; Rader, M.

doi:10.1109/plasma.1991.695449

Cited by 4 publications

(1 citation statement)

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“…Frequency shifting of electromagnetic waves by rapid plasma creation has drawn considerable attention in recent years [Wilks et al, 1988;Kalluri, 1988;Kuo, 1990;Joshi et al, 1990;Alexeft et al, 1991;Savage et al, 1992] due to its potential applications in generation of tunable microwave radiation over a broad frequency range. The mechanism behind this frequency shifting can be explained as follows.…”

Section: Introductionmentioning

confidence: 99%

Longitudinal propagation of low‐frequency waves in a switched magnetoplasma medium

Madala¹,

Kalluri²

1993

Radio Science

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The interaction of electromagnetic radiation with a time‐switched magnetoplasma is considered. Exact analysis, including ion motion, for longitudinal propagation is given. The original wave splits into four new waves whose frequencies are different from the incident wave frequency. Approximate dispersion relations are obtained in the Alfvén and hydromagnetic ranges. The energy distribution, power content, and frequency shifts in each of the four new waves are discussed in these low‐frequency regions. It is shown that the low‐frequency waves degenerate into dc wiggler magnetic fields for the limiting case of switching an isotropic plasma medium. Parameters and typical values for an experiment that will illustrate the generation of the new waves are given.

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Section: Introductionmentioning

confidence: 99%

Longitudinal propagation of low‐frequency waves in a switched magnetoplasma medium

Madala¹,

Kalluri²

1993

Radio Science

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WKB solution for wave propagation in a time-varying magnetoplasma medium: longitudinal propagation

Kalluri

Goteti

Sessler

1993

IEEE Trans. Plasma Sci.

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A conceptual study of stealth plasma antenna

Kang

Rader²,

Alexeff³

IEEE Conference Record - Abstracts. 1996 IEEE International Conference on Plasma Science

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tion systems are investigated for maximum sensitivity. Reflected signals are measureld for amplitude and phase analysis. Comparable amplitude and phase shifts are noted when compared to an aluminum conducting sheet placed in the same position as the plasma. The working gas is tetrakis(dimethy1amino)ethylene (TMAE) with an ionization energy of 5.36 eV. The ionizing source is a VUV excimer laser 41P09

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Frequency Modulation Of Free Space R.F. Signals

Cited by 4 publications

References 0 publications

Longitudinal propagation of low‐frequency waves in a switched magnetoplasma medium

Longitudinal propagation of low‐frequency waves in a switched magnetoplasma medium

WKB solution for wave propagation in a time-varying magnetoplasma medium: longitudinal propagation

A conceptual study of stealth plasma antenna

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