CST – Computer Simulation Technology

Wideband Slot Antenna for WLAN Access Points

Title:
Wideband Slot Antenna for WLAN Access Points
Author(s):
Carla R. Medeiros, Eduardo B. Lima, Jorge R. Costa, Carlos A. Fernandes
Source:
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
Vol./Issue/Date:
Antennas and Wireless Propagation Letters, IEEE (Volume:9 )
Year:
2010
Page(s):
79 - 82
Keywords:
Cavity back, printed wideband antenna, tapered slot antenna, wireless local area network (WLAN)
Abstract:
This letter presents a new printed slot antenna with cavity back for wireless local area network (WLAN) access points (base stations) providing wideband operation bandwidth at least from 2.5 to 4.8 GHz. The design is based upon an ultrawideband (UWB) antenna configuration modified with the inclusion of a cavity back in order to produce stable unidirectional radiation pattern. The new configuration also ensures a stable linear polarization with cross-polarization level below 20 dB. Results are confirmed with measurements. Not disregarding other applications, the new design is especially adequate for multiple-input–multiple-output (MIMO) space and polarization diversity arrangements, presenting low cross polarization and very low coupling to adjacent elements
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