SURFACE WAVES ON PLASMA-CLAD METAL RODS,
Abstract
Surface waves guided along a metal rod which is surrounded by a concentric isotropic plasma sheath are investigated for both the principal and the higher modes by employing a rigorous formulation. It is shown that all these modes exhibit a high frequency cut-off phenomenon; the two first modes propagate down to D. C. whereas all the other modes posses a finite low frequency cut-off and thus exhibit band-pass characteristics. Backward wave propagation is shown to exist when the plasma sheath is thin; dispersion curves are calculated and compared with previous data obtained by means of quasi-static approximations whose limitations and inaccuracies are also indicated. All the results are derived for the plasma-clad rod being placed either in free space or in a dielectric medium and the dispersion features for both situations are represented in terms of universal curves. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 10, 1963
- Accession Number
- AD0427055
Entities
People
- S. Palocz
- T. Tamir
Organizations
- New York University Tandon School of Engineering