DocumentCode :
1026658
Title :
The wide-band matching area for a small antenna
Author :
Wheeler, Harold A.
Author_Institution :
Hazeltine Corporation, Greenlawn, NY, USA
Volume :
31
Issue :
2
fYear :
1983
fDate :
3/1/1983 12:00:00 AM
Firstpage :
364
Lastpage :
367
Abstract :
A special frequency scale is proposed for use in describing the fundamental limitation on wide-band matching of a small antenna by means of a fixed reactive network. This scale is 
, normalized to unit frequency ( 
)-It has unit width for the high-pass band above this frequency. In terms of the familiar matching exponent 
, the matching area over this scale is limited to 
, where 
is the (small) radiation power factor at 
. The corresponding limit on matching efficiency is 
. A double-tuned matching network can approach 
this area over any bandwidth on this scale.
, normalized to unit frequency ( )-It has unit width for the high-pass band above this frequency. In terms of the familiar matching exponent , the matching area over this scale is limited to , where is the (small) radiation power factor at . The corresponding limit on matching efficiency is . A double-tuned matching network can approach this area over any bandwidth on this scale.Keywords :
Antennas; Impedance-matching; Adaptive arrays; Bandwidth; Broadband antennas; Frequency; Impedance matching; Inductors; Loaded antennas; Power transmission lines; Reactive power; Transmission line antennas;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.1983.1143030
Filename :
1143030
Link To Document :
