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- Title
Dual-polarised cavity-backed annular slot antenna of compact structure.
- Authors
Weiwen Li; Chen, X. J.; Zhang, B.; Zhou, J. H.; You, B. Q.
- Abstract
A unidirectional dual-polarised antenna is presented, by applying a cavity-backed annular slot and two mutually perpendicular microstrip feed lines. To improve the isolation between two ports of the designed antenna, a pair of conductor strips is introduced at the opposite side of the feed lines and a metal cylinder into the cavity centre. Aimed at 2.4 GHz wireless local area network systems, a prototype antenna has been fabricated based on the FR4 substrate. The measured results show that an isolation value of over 33 dB can be attained and the co-polarised level is 30 dB larger than the cross-polarised in the main radiation direction. In addition to compact structure, the operating band with about 5 dBi antenna gain indicates the proposed antenna is suitable for indoor multiple-input-multiple-output (MIMO) base station systems.
- Subjects
SLOT antennas; MICROSTRIP transmission lines; MICROSTRIP antennas; WIRELESS LANs; RADIATION; MIMO systems
- Publication
Electronics Letters (Wiley-Blackwell), 2014, Vol 50, Issue 23, p1655
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2014.2715