Interfacial wave propagation due to an interfacial line source

• Authors: Zahid Qazi , Azhar Rizvi
• Languages of publication: EN

Abstracts

EN

Interfacial wave propagation parallel to a dielectric interface has been studied by considering an electric current line source present at the interface. The first order asymptotic evaluation of field components shows a null of the electric field at the interface. An amplitude null represents an unstable structure in the phase map and a phase front discontinuity across the interface. Higher order asymptotic evaluation has been employed to gain further insight into this propagation problem. The results show that the wavefronts need not be discontinuous. The continuity of the phase fronts is preserved with the help of interesting and stable structures such as saddle points and center points in the phase map of the electric field in both half spaces.

Keywords

EN

line source; wavefronts

Discipline

• 11.10.-z: Field theory(for gauge field theories, see 11.15.-q)
• 13.40.-f: Electromagnetic processes and properties
• 41.20.-q: Applied classical electromagnetism(for submillimeter wave, microwave, and radiowave instruments and equipment, see 07.57.-c)

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2009
• Volume: 7
• Issue: 4
• Pages: 806-812

Dates

published

1 - 12 - 2009

online

21 - 7 - 2009

Contributors

author

Zahid Qazi

• Communication Lab. Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan and Communication Lab. Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan

author

Azhar Rizvi

• Communication Lab. Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan and Communication Lab. Department of Electronics, Quaid-i-Azam University, Islamabad, Pakistan

References

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Identifiers

DOI

10.2478/s11534-009-0076-y