DocumentCode :
2667398
Title :
Analysis of concentric split ring square reflectarray element for bandwidth enhancement
Author :
Yusop, Siti Hafizah ; Misran, Norbahiah ; Islam, Mohammad Tariqul ; Ismail, Muhammad Yusof
Author_Institution :
Dept. of Electr., Electron. & Syst. Eng., Univ. Kebangsaan Malaysia, Selangor, Malaysia
fYear :
2009
fDate :
26-27 Oct. 2009
Firstpage :
62
Lastpage :
66
Abstract :
An analysis of phase variation and phase range of concentric split ring square element for broadband reflectarray antenna is presented in this paper. This element is the combination of a single square element and a ring element where the square element is the modification of the conventional annular ring element which instead of using annul as the hole, this new idea presents a square as the hole in the ring. This will vary the current distribution in the element which will then improve the performance of the bandwidth. The analysis and the design of this reflectarray element is presented based on variable size which operates at the first resonant frequency of 13.44 GHz and at the second resonant frequency of 18.36 GHz. The design procedure and critical parameters consist of phase range and phase slope (or variation) are also discussed. Modifying the current distribution of square ring element, leads to a less steep phase variation and also enhancement on the bandwidth performance (up to 67.6%). The practical phase range is achieved through the use of RF35 as the substrate with the dielectric constant of 3.54 and the thickness of 1.524 mm. CST Microstripes is used as the software tool to get the simulation results.
Keywords :
antenna arrays; broadband antennas; current distribution; reflector antennas; resonance; bandwidth enhancement; broadband reflectarray antenna; concentric split ring square reflectarray element; current distribution; frequency 13.44 GHz; frequency 18.36 GHz; phase range; phase slope; phase variation; resonant frequency; Bandwidth; Broadband antennas; Current distribution; Dielectric constant; Dielectric substrates; Lead; Microstrip; Reflector antennas; Resonant frequency; Software tools; broader bandwidth; dual frequency; reflectarray antenna;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Space Science and Communication, 2009. IconSpace 2009. International Conference on
Conference_Location :
Negeri Sembilan
Print_ISBN :
978-1-4244-4956-9
Electronic_ISBN :
978-1-4244-4956-9
Type :
conf
DOI :
10.1109/ICONSPACE.2009.5352670
Filename :
5352670
Link To Document :
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