Minimum Q for Lossy and Lossless Electrically Small Dipole Antennas
Yaghjian, A.D. ; Gustafsson, Mats LU
and Jonsson, B.L.G
(2013)
In Progress in Electromagnetics Research-Pier
143.
p.641-673
- Abstract
- General expressions for the quality factor (Q) of antennas are minimized to obtain lower-bound formulas for the Q of electrically small, lossy or lossless, combined electric and magnetic dipole antennas confined to an arbitrarily shaped volume. The lower-bound formulas for Q are derived for the dipole antennas excited by both electric and magnetic surface currents as well as by electric surface currents alone. With either excitation, separate formulas are found for the dipole antennas containing only lossless or nondispersive-conductivity material and for the dipole antennas containing highly dispersiveconductivity material. The formulas involve the quasi-static electric and magnetic polarizabilities of the associated perfectly conducting... (More)
- General expressions for the quality factor (Q) of antennas are minimized to obtain lower-bound formulas for the Q of electrically small, lossy or lossless, combined electric and magnetic dipole antennas confined to an arbitrarily shaped volume. The lower-bound formulas for Q are derived for the dipole antennas excited by both electric and magnetic surface currents as well as by electric surface currents alone. With either excitation, separate formulas are found for the dipole antennas containing only lossless or nondispersive-conductivity material and for the dipole antennas containing highly dispersiveconductivity material. The formulas involve the quasi-static electric and magnetic polarizabilities of the associated perfectly conducting volume of the antenna, the ratio of the powers radiated by the electric and magnetic dipoles, and the efficiency of the antenna. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/4194578
- author
- Yaghjian, A.D.
; Gustafsson, Mats
LU
and Jonsson, B.L.G
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Minimum Q, Antennas, Electrically Small
- in
- Progress in Electromagnetics Research-Pier
- volume
- 143
- pages
- 641 - 673
- publisher
- EMW Publishing
- external identifiers
-
- wos:000331095700033
- scopus:84890262111
- ISSN
- 1070-4698
- DOI
- 10.2528/PIER13103107
- language
- English
- LU publication?
- yes
- id
- 82c7fa6f-cf6f-4f9c-9f71-3bb4ba5f0778 (old id 4194578)
- alternative location
- http://www.jpier.org/pier/pier.php?paper=13103107
- date added to LUP
- 2016-04-04 08:41:07
- date last changed
- 2022-02-28 05:17:11
@article{82c7fa6f-cf6f-4f9c-9f71-3bb4ba5f0778,
abstract = {{General expressions for the quality factor (Q) of antennas are minimized to obtain lower-bound formulas for the Q of electrically small, lossy or lossless, combined electric and magnetic dipole antennas confined to an arbitrarily shaped volume. The lower-bound formulas for Q are derived for the dipole antennas excited by both electric and magnetic surface currents as well as by electric surface currents alone. With either excitation, separate formulas are found for the dipole antennas containing only lossless or nondispersive-conductivity material and for the dipole antennas containing highly dispersiveconductivity material. The formulas involve the quasi-static electric and magnetic polarizabilities of the associated perfectly conducting volume of the antenna, the ratio of the powers radiated by the electric and magnetic dipoles, and the efficiency of the antenna.}},
author = {{Yaghjian, A.D. and Gustafsson, Mats and Jonsson, B.L.G}},
issn = {{1070-4698}},
keywords = {{Minimum Q; Antennas; Electrically Small}},
language = {{eng}},
pages = {{641--673}},
publisher = {{EMW Publishing}},
series = {{Progress in Electromagnetics Research-Pier}},
title = {{Minimum Q for Lossy and Lossless Electrically Small Dipole Antennas}},
url = {{http://dx.doi.org/10.2528/PIER13103107}},
doi = {{10.2528/PIER13103107}},
volume = {{143}},
year = {{2013}},
}