Efficiency, gain and Q of antennas

Anders Karlsson

doi:10.1109/IWAT.2007.370155

Efficiency, gain and Q of antennas

Anders Karlsson

Department of Electrical and Information Technology

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

Abstract

The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on small antennas. In this paper it is discussed how one can avoid low efficiency and high Q-values in small antennas by examining the far-field pattern of the antenna. The analysis is based on the expansion of the electromagnetic fields in terms of vector spherical harmonics. © 2007 IEEE.

Original language	English
Title of host publication	Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007
Publisher	IEEE - Institute of Electrical and Electronics Engineers Inc.
Pages	384-387
DOIs	https://doi.org/10.1109/IWAT.2007.370155
Publication status	Published - 2007
Event	2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007 - Cambridge, United Kingdom Duration: 2007 Mar 21 → 2007 Mar 23

Conference

Conference	2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007
Country/Territory	United Kingdom
City	Cambridge
Period	2007/03/21 → 2007/03/23

Subject classification (UKÄ)

Electrical Engineering, Electronic Engineering, Information Engineering

Free keywords

Far-field patterns
Vector spherical harmonics
Q-values

Access to Document

10.1109/IWAT.2007.370155

Cite this

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title = "Efficiency, gain and Q of antennas",

abstract = "The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on small antennas. In this paper it is discussed how one can avoid low efficiency and high Q-values in small antennas by examining the far-field pattern of the antenna. The analysis is based on the expansion of the electromagnetic fields in terms of vector spherical harmonics. {\textcopyright} 2007 IEEE.",

keywords = "Far-field patterns, Vector spherical harmonics, Q-values",

author = "Anders Karlsson",

year = "2007",

doi = "10.1109/IWAT.2007.370155",

language = "English",

pages = "384--387",

booktitle = "Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007",

publisher = "IEEE - Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007 ; Conference date: 21-03-2007 Through 23-03-2007",

}

Karlsson, A 2007, Efficiency, gain and Q of antennas. in Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007. IEEE - Institute of Electrical and Electronics Engineers Inc., pp. 384-387, 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007, Cambridge, United Kingdom, 2007/03/21. https://doi.org/10.1109/IWAT.2007.370155

Efficiency, gain and Q of antennas. / Karlsson, Anders.
Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007. IEEE - Institute of Electrical and Electronics Engineers Inc., 2007. p. 384-387.

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Efficiency, gain and Q of antennas

AU - Karlsson, Anders

PY - 2007

Y1 - 2007

N2 - The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on small antennas. In this paper it is discussed how one can avoid low efficiency and high Q-values in small antennas by examining the far-field pattern of the antenna. The analysis is based on the expansion of the electromagnetic fields in terms of vector spherical harmonics. © 2007 IEEE.

AB - The fundamental limits of the gain, efficiency and Q-value of an antenna put severe restrictions on small antennas. In this paper it is discussed how one can avoid low efficiency and high Q-values in small antennas by examining the far-field pattern of the antenna. The analysis is based on the expansion of the electromagnetic fields in terms of vector spherical harmonics. © 2007 IEEE.

KW - Far-field patterns

KW - Vector spherical harmonics

KW - Q-values

U2 - 10.1109/IWAT.2007.370155

DO - 10.1109/IWAT.2007.370155

M3 - Paper in conference proceeding

SP - 384

EP - 387

BT - Conference Proceedings - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007

PB - IEEE - Institute of Electrical and Electronics Engineers Inc.

T2 - 2007 IEEE International Workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, iWAT 2007

Y2 - 21 March 2007 through 23 March 2007

ER -

Efficiency, gain and Q of antennas

Abstract

Conference

Subject classification (UKÄ)

Free keywords

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Cite this