DocumentCode :
928962
Title :
Design of broad-band radar-absorbing materials for large angles of incidence
Author :
Perini, Jose ; Cohen, Lawrence S.
Author_Institution :
Syracuse Univ., New Smyrna Beach, FL, USA
Volume :
35
Issue :
2
fYear :
1993
fDate :
5/1/1993 12:00:00 AM
Firstpage :
223
Lastpage :
230
Abstract :
A numerical technique, called the (modified) Powell method, is used to design radar-absorbing materials (RAMs) made up of several dielectric layers, usually on top of a conducting (ground) plane. The absorption of RF energy occurs mostly in the last layer. The other layers are used to match the wave impedance of the RAM to that of the medium on which the radiation is incident, for the desired angles of incidence, frequencies, and polarizations. The technique is very flexible, allowing the design of RAMs tailored for specific applications or general use. One important example is the design of RAMs that can maintain a minimum absorption rate from normal to almost grazing incidence, over a specified frequency bandwidth.
Keywords :
electromagnetic wave absorption; numerical analysis; radar cross-sections; radar theory; radiowave propagation; RAM; RF energy absorption; broad-band radar-absorbing materials; dielectric layers; large angles of incidence; minimum absorption rate; modified Powell method; numerical technique; radar cross sections; radiowave propagation; wave impedance; Absorption; Bandwidth; Conductivity; Dielectric constant; Dielectric losses; Dielectric materials; Impedance; Radio frequency; Reflection; Slabs;
fLanguage :
English
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9375
Type :
jour
DOI :
10.1109/15.229418
Filename :
229418
Link To Document :
بازگشت