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Forward scattering of loaded and unloaded antennas

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Author

Summary, in English

Forward scattering of antennas is related to antenna performance via the forward scattering sum rule. The forward scattering sum rule is an integral identity that shows that a weighted integral of the extinction cross section over all spectrum is proportional to the static polarizabiliy of the antenna structure.

Here, the forward scattering sum rule is experimentally verified for loaded, short circuit, and open circuit cylindrical dipole antennas.

It is also shown that the absorption efficiency cannot be greater than 1/2 for reciprocal linearly polarized lossless matched antennas with a symmetric radiation pattern.

Publishing year

2012

Language

English

Publication/Series

Technical Report LUTEDX/(TEAT-7217)/1-13/(2012)

Document type

Report

Publisher

The Department of Electrical and Information Technology

Topic

  • Electrical Engineering, Electronic Engineering, Information Engineering

Status

Published

Report number

TEAT-7217

Research group

  • Electromagnetic theory