摘要:

A ray‐optical description for the surface wave contribution to the far fields radiated by an electromagnetic point source in the presence of a planar interface between two lossless, homogeneous, anisotropic media is formulated. The surface wave rays are viewed as extending radially along the interface from the normal projection of the source onto the interface. Locally, the ray fields are those of the modal surface waves carrying energy in the ray direction. The effect of anisotropy on the surface wave radiation pattern is also considere

ISSN:0048-6604    

DOI:10.1029/RS004i001p00073

年代:1969

数据来源: WILEY

摘要:

In this paper, an unbounded, collision‐free magnetoplasma of one species is analyzed by applying linearized theory. Modifications on the cold plasma dispersion surfaces due to the temperature effect are indicated by typical examples. To take into account the particle‐wave interactions, a microscopic model of the magnetoplasma is analyzed for very large refractive indices and for very high temperatures. Two directions of propagation (along and across the biasing magnetic field Bº) are considered, According to the results of the microscopic model, at gyroresonance for propagation along Bºthe complex refractive index n cannot have arbitrarily large values if its phase angle is between −π/4, and π/4, whereas, for propagation across Bº, η becomes real and arbitrarily large. Both of these results contradict those of the compressible

ISSN:0048-6604    

DOI:10.1029/RS004i001p00083

年代:1969

数据来源: WILEY

摘要:

The noise received by an antenna immersed in a hot plasma is directly related to the input resistance of the antenna as computed by Kuehl (1966), using a Maxwellian velocity distribution. The result is rederived for a plasma with any stable velocity distribution.

ISSN:0048-6604    

DOI:10.1029/RS004i001p00091

年代:1969

数据来源: WILEY

摘要:

The second conference on Planetary Atmospheres and Surfaces will be held in Woods Hole, Massachusetts, August 11–15, 1969, under the joint sponsorship of Commissions II and V of URSI and the IAU. The aim of the conference is to afford an exchange of the latest results obtained by radar, radio astronomy, and space probe techniques in the study of planetary atmospheres and surfaces. Members of the organizing committee include W. E. Gordon (U.S.A.), Z. Kopal (England), A. Boischot (France), and A. D. Kuzmin (USSR). Sessions will be held on the following topics:Moon—remote sensing including infrared, Venus—remote sensing; atmospheric models. radio, radar, and close‐up photography; Mars—remote sensing. properties of the surface; evolution. Jupiter and the giant planets—remote sens‐Mercury—remote sensing. ing; radio‐emission mechanisms.Attendance will be by invitation. Papers should be submitted in full to J. V. Evans, Lincoln Laboratory, MIT, Lexington, Massachusetts 02173 USA b

ISSN:0048-6604    

DOI:10.1029/RS004i001p00093-02

年代:1969

数据来源: WILEY