Tri-band HIS backed spiral antenna for wireless LAN applications
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 back...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
John Wiley
2015
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| Subjects: | |
| Online Access: | http://irep.iium.edu.my/43963/ http://irep.iium.edu.my/43963/ http://irep.iium.edu.my/43963/ http://irep.iium.edu.my/43963/1/%234_mop29028_-_Tri-band_HIS_backed_spiral_antenna_for_wireless_LAN_applications.pdf |
| Summary: | 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. |
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