A Novel Nonlinear LPDA Design for HF Direction Finding
Joint Authors
Source
International Journal of Antennas and Propagation
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-02-17
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A novel design of log-periodic dipole array (LPDA) for high-frequency direction finding (DF) is presented.
The traditional Carrel method employs fixed values of scale factor and spacing factors in LPDA designs.
Here, we propose a design method which uses the continuous change of both the scale factor and the spacing factor so that the length of the dipoles and the space between dipoles vary nonlinearly.
One advantage of our design is that the effective distance between the phase center position and the feed point of LPDA can be increased.
So the effective radius of the circularly disposed antenna array (CDAA) composed of LPDA is extended, which is important for improving the accuracy of the DF system.
Both the simulation and measurement results show that the proposed LPDA achieves larger effective distance and higher gain compared to that using the traditional Carrel method.
The proposed LPDA also shows characteristics of wideband impedance matching.
The antenna has been successfully applied to practical HF direction finding system.
American Psychological Association (APA)
Ren, Xiaofei& Li, Hu& Gong, Shuxi. 2019. A Novel Nonlinear LPDA Design for HF Direction Finding. International Journal of Antennas and Propagation،Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1157212
Modern Language Association (MLA)
Ren, Xiaofei…[et al.]. A Novel Nonlinear LPDA Design for HF Direction Finding. International Journal of Antennas and Propagation No. 2019 (2019), pp.1-10.
https://search.emarefa.net/detail/BIM-1157212
American Medical Association (AMA)
Ren, Xiaofei& Li, Hu& Gong, Shuxi. A Novel Nonlinear LPDA Design for HF Direction Finding. International Journal of Antennas and Propagation. 2019. Vol. 2019, no. 2019, pp.1-10.
https://search.emarefa.net/detail/BIM-1157212
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1157212