NDLI: A dual polarized dual band microstrip antenna for wireless communications

Content Provider	IEEE Xplore Digital Library
Author	Lindmark, B.
Copyright Year	1998
Description	Author affiliation: Allgon Syst. AB, Taby, Sweden (Lindmark, B.)
Abstract	The demand for antennas for mobile wireless applications has increased dramatically over the last 10 years. Today we have a number of land and satellite based systems for wireless communications using a wide range of frequency bands. Not only do we see an increase in the number of subscribers in the different systems but also a demand for dual or multi band equipment capable of handling two or more frequency bands. Our paper describes a dual polarized, dual band antenna element suited for use in a base station antenna. The antenna element is an aperture coupled, stacked patch, maintaining the symmetry needed for dual polarization operation. The total height is less than 0.15 /spl lambda/ at the lowest frequency and the element provides broadside radiation. Whereas most previously presented dual band elements are linearly polarized microstrip antennas which utilize a number of narrow-band resonators, our design has all the broadband and dual-polarized characteristics of traditional aperture coupled patch antennas. The bandwidth for return loss>10 dB of the element covers both the 880-960 MHz GSM (Global System for Mobile Communication) band and the 1710-1880 MHz DCS (Digital Cellular System) frequency band. The measured isolation between the ports corresponding to the two orthogonal polarizations is greater than 32 dB in both bands.
Starting Page	333
Ending Page	338
File Size	546064
Page Count	6
File Format	PDF
ISBN	0780343115
ISSN	1095323X
DOI	10.1109/AERO.1998.685830
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-03-28
Publisher Place	Colorado
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Microstrip antennas Polarization Dual band Frequency Aperture coupled antennas Aperture antennas Broadband antennas GSM Mobile antennas Artificial satellites
Content Type	Text
Resource Type	Article
Subject	Aerospace Engineering Space and Planetary Science

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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