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Impedance and quality factor of mutually coupled multiport antennas
Author(s) -
Sten Johan C.E.,
Hirvonen Mervi
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23564
Subject(s) - antenna (radio) , terminal (telecommunication) , electrical impedance , electronic engineering , microwave , electrical engineering , engineering , quality (philosophy) , input impedance , port (circuit theory) , antenna measurement , q factor , physics , telecommunications , quantum mechanics , resonator
In this study, expressions for the radiation quality factor Q and the input impedance seen at any terminal of a multiport antenna are derived. It is shown computationally that because of the possibility to adjust the antenna current distribution through suitable feeding/loading a multiport antenna can perform lower Qs than a similar single‐port antenna. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2034–2039, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23564