NDLI: On the performances of simple circularly polarized beam-switching, 3-element and 4-element patch array antennas for mobile satellite broadcasting/communication

Content Provider	IEEE Xplore Digital Library
Author	Delaune, D. Murayama, Y. Onishi, T. Yoshimura, H. Ito, K.
Copyright Year	2002
Description	Author affiliation: Graduate Sch. of Sci. & Technol., Chiba Univ., Japan (Delaune, D.; Murayama, Y.; Onishi, T.)
Abstract	Two types of array antennas operating at the 2.6 GHz-band, which can be used for the MSB (mobile satellite broadcasting), are presented. Both are formed of square patches with truncated comers and generate circular polarization. After finding the value of substrate relative permittivity giving the best results, numerical simulations concerning the two antennas were performed. The first array antenna is made of three elements and aims at a reduced size. Its performance is satisfactory in terms of axial ratio in the elevation plane and in terms of minimum gain, but not at low elevation angle. Then a second array, composed of four patches, was analyzed and gave better results. The axial ratio is satisfactory and the minimum gain is better than for the first array, though still under the specification at low elevation angles. Extra simulations revealed that the minimum gain could reach the required 3 dBi at low elevation angles if one of the feeding sources is turned off. This case is still under investigation. As both antennas are interesting, depending on the user, and considering the promising results, it is planned to confirm them by performing measurements.
Starting Page	732
Ending Page	735
File Size	247708
Page Count	4
File Format	PDF
ISBN	0780373308
DOI	10.1109/APS.2002.1017087
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Polarization Antenna arrays Mobile antennas Satellite antennas Satellite broadcasting Mobile communication Permittivity Numerical simulation Performance gain Performance evaluation
Content Type	Text
Resource Type	Article

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