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Effect of electroacoustic waves on radiation properties of microstrip matched coaxial termination

Published online by Cambridge University Press:  13 March 2009

A. M. Salem ,
D. Bhatnagar  and
J. M. Gandhi
A. M. Salem
Affiliation:
Microwave Laboratory, Department of Physics, University of Rajasthan, Jaipur 302004, India
D. Bhatnagar
Affiliation:
Microwave Laboratory, Department of Physics, University of Rajasthan, Jaipur 302004, India
J. M. Gandhi
Affiliation:
Microwave Laboratory, Department of Physics, University of Rajasthan, Jaipur 302004, India
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Abstract

Expressions for the field intensities in a warm ionized plasma for two type of modes (electromagnetic and electroacoustic) pertaining to a microstrip matched coaxial termination are obtained using linearized hydrodynamic theory coupled with a vector function technique. The radiation power and directivity for the respective modes are evaluated for different ratios of plasma to source frequencies. It is observed that electromagnetic fields are similar to other microstrip antenna structures, but more directive in a particular direction. The electroacoustic mode exhibits a complete absence of multilobed structure, which was found for other antenna structures. The efficiency of this structure in a plasma is poor.

Type
Research Article
Information
Journal of Plasma Physics , Volume 56 , Issue 1 , August 1996 , pp. 25 - 34
Copyright
Copyright © Cambridge University Press 1996

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References

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