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Printed coplanar two‐antenna element for 2.4/5 GHz WLAN operation in a MIMO system
Author(s) -
Su SaouWen,
Chou JuiHung,
Liu YungTao
Publication year - 2008
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.23446
Subject(s) - monopole antenna , antenna (radio) , electrical engineering , engineering , ground plane , antenna measurement , coaxial antenna , electronic engineering , antenna factor , dipole antenna
A printed coplanar two‐antenna element suited for WLAN operation in the 2.4‐ and 5‐GHz bands for dual‐module applications in a MIMO system is proposed. The two‐antenna element is comprised of one planar inverted‐F antenna (PIFA) and one monopole antenna, both printed and integrated in a coplanar configuration on a narrow dielectric substrate with the dimensions 50 mm × 11 mm. The two antennas are excited using two separate feeds with a common ground plane. By utilizing two proposed elements spaced 10‐mm apart in the lateral direction with an optimized arrangement, the four‐antenna MIMO system obtained can achieve optimal isolation between any two of the four antennas. In comparison with the conventional dual‐band antenna with a single feed, the proposed two‐antenna element allows the 2.4‐ and 5‐GHz signals to be simultaneously received or transmitted with no external switch circuit between the antenna and modules required. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1635–1638, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23540