Telecommunications and Radio Engineering

ISSN for PRINT: 0040-2508

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2003, Volume60

P. K. Nesterov
A. Usikov Institute of Radio Physics and Electronics, National Academy of Sciences of Ukraine, 12, Academician Proskura St., Kharkov 61085, Ukraine

Quasi-optical interferometers are described intended for determining of electron concentration (n_e) of plasma by sounding with submillimetric waves and measuring of phase shift (φ) of wave passed through plasma, the shift being caused by change of n_e. Design of interferometers is based on a hollow dielectric beam guide and radio-measurement quasi-optical devices. Proposed circuits allow to increase accuracy of n_e determination in cases that values of φ measured by well-known interferometers [1] make several degrees or several tens of degrees.

DOI: 10.1615/TelecomRadEng.v60.i34.160 Download article, 9 pages

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