Estimating directivity and gain of antennas

Gain is the most important performance parameter of an antenna. However, in many practical situations it is not possible to measure or calculate the gain of an antenna. Also, the interest in wireless applications has increased the need of system engineers to accurately estimate antenna gain. Many si...

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Bibliographic Details
Published in:IEEE antennas & propagation magazine 1998-08, Vol.40 (4), p.7-11
Main Author: Stutzman, W.L.
Format: Magazinearticle
Language:English
Subjects:
Antenna measurements
Antenna theory
Antennas
Applied sciences
Dipole antennas
Electric variables measurement
Exact sciences and technology
Gain measurement
Performance gain
Radiocommunications
Receiving antennas
System performance
Telecommunications
Telecommunications and information theory
Transmitting antennas
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Summary:Gain is the most important performance parameter of an antenna. However, in many practical situations it is not possible to measure or calculate the gain of an antenna. Also, the interest in wireless applications has increased the need of system engineers to accurately estimate antenna gain. Many simple formulas are available for estimating gain. But, each formula has a range of applicability, and inappropriate use of these formulas will result in inaccurate gain values. This paper explains the process of gain evaluation, and gives several simple gain-estimation formulas, together with recommendations for their use.
ISSN:1045-9243
1558-4143
DOI:10.1109/74.730532