Title :
Characteristic modes and antenna bandwidth
Author :
Rahola, J. ; Ludick, Danie ; Futter, Peter
Author_Institution :
Optenni Ltd., Espoo, Finland
Abstract :
We examine the connection between the characteristic mode analysis of a radiating body and the impedance bandwidth of the body when used as an antenna. The impedance bandwidth depends on the characteristic modes of the body and how the various modes are excited. To estimate the obtainable bandwidth of non-resonant antennas, we use the bandwidth potential technique which gives more reliable and practical results for wideband antennas than the Q factor analysis.
Keywords :
Q-factor; antenna theory; broadband antennas; Q factor analysis; antenna bandwidth; bandwidth potential technique; impedance bandwidth; nonresonant antenna; radiating body characteristic mode analysis; wideband antenna; Broadband antennas; Impedance; Resonant frequency; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905033
