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Tri‐band HIS backed spiral antenna for wireless LAN applications
Author(s) -
Mohamad Sarah,
Cahill Robert,
Fusco Vincent
Publication year - 2015
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.29028
Subject(s) - spiral antenna , antenna (radio) , microwave , electrical engineering , spiral (railway) , optics , aperture (computer memory) , reflector (photography) , wireless lan , physics , radiation pattern , electrical impedance , engineering , wireless , telecommunications , acoustics , coaxial antenna , mechanical engineering , light source
This study reports the performance of an Archimedean spiral antenna, which exhibits unidirectional circularly polarized radiation patterns with a peak gain >8 dBic in the lower (2.4–2.485 GHz) and upper (5.15–5.35 and 5.725–5.875 GHz) Wireless local area network frequency bands. The required backlobe suppression and impedance match are obtained by placing a multiresonant high impedance surface (HIS) in close proximity to the radiating aperture. Simulated and measured radiation patterns are shown at the center frequency of all three channels and a comparison of the key performance metrics is made with free space and metal backed antenna arrangements to demonstrate the enhancements which are attributed to the HIS reflector. © 2015 Wiley Periodicals, Inc. Microwave Opt Technol Lett 57:1116–1121, 2015
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