What is a dual-polarized antenna?

[streamlet]

dual polarized antenna

Does a dual-polarized antenna mean an antenna of an roughly equal co-polarization and cross-polarization? What's its difference from circular polarization?
Anyone can give comments or tell me some references or books about the definition of dual-polarization? Thx in advance.

 

[balaguru thavamani]

dual polarized antenna definition

go thr attached document
which is from Advances in Microstrip and Printed Antennas by Kai Fang Lee / Wei Chen
Also check this links
http://www.iec.org/online/tutorials/acrobat/dual_polar.pdf
**broken link removed**

 

[streamlet]

definition polarization antenna dual

Great, thx.