DocumentCode :
2885410
Title :
Modified Phoenix cell for microstrip reflectarray antennas
Author :
Ibrahim, S.A. ; Hammad, Hany F.
Author_Institution :
German Univ. in Cairo, New Cairo, Egypt
fYear :
2013
fDate :
7-13 July 2013
Firstpage :
1562
Lastpage :
1563
Abstract :
This paper presents a new modification to the structure of a linear reflectarray cell, called Phoenix [1]. The idea of Phoenix is based on employing multi-resonators to improve the antenna bandwidth characteristics. Another interesting feature is the phase variation cycle which is characterized by a rebirth capability that was the reason behind the phoenix name. The new developed modifications resulted in reducing the cell size by 0.16λ0. In addition to improving the linearity of the phase variation characteristics which in turn reduced the phase errors by 10° compared to Phoenix. Two reflectarray antennas (200×200mm2) were designed at 9.4 GHz in order to test the new modifications applied. The simulations and measurements indicated increased antenna directivity for the new modified Phoenix reflectarray antenna. Moreover, the measured gain of Phoenix and modified Phoenix at 9.4 GHz is 17.8 dB and 20.9 dB, respectively.
Keywords :
linear antenna arrays; microstrip antenna arrays; reflectarray antennas; antenna bandwidth characteristics; antenna directivity; frequency 9.4 GHz; gain 17.8 dB; gain 20.9 dB; linear reflectarray cell; microstrip reflectarray antennas; modified Phoenix cell; multiresonators; phase errors reduction; phase variation cycle; rebirth capability; Antenna measurements; Arrays; Bandwidth; Microstrip; Microstrip antennas; Reflector antennas; Substrates;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE
Conference_Location :
Orlando, FL
ISSN :
1522-3965
Print_ISBN :
978-1-4673-5315-1
Type :
conf
DOI :
10.1109/APS.2013.6711440
Filename :
6711440
Link To Document :
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