Title :
Optimum Microstrip Reflectarray Unit Cell Design for Wide-Band Operation
Author :
Arshad, M.K. ; Tahir, F.A.
Author_Institution :
Nat. Univ. of Sci. & Technol., Islamabad, Pakistan
Abstract :
In this paper a unit cell (of a micro strip reflect array antenna) consists of double circular ring element is proposed with enhanced bandwidth and linear reflection phase range. The micro strip reflect array unit cell operates in X Band (8-12 GHz) at the centre frequency of 10 GHz. The design proposed in this paper has a linear reflection phase range which enhances the pattern bandwidth of a micro strip reflect array unit cell. An soft HFSS software is used to carry out a parametric study to confirm the performance of the unit cell. Reflection phase range value of more than 550 degree and a phase slope value of 79 mm at the centre frequency of 10 GHz has been obtained with this unit cell. A pattern bandwidth of up to 24% on frequency band of 8.75 GHz to 11.14 GHz is achieved.
Keywords :
antenna phased arrays; bandwidth allocation; electrical engineering computing; microstrip antenna arrays; microwave antenna arrays; reflectarray antennas; Ansoft HFSS software; bandwidth 8 GHz to 12 GHz; bandwidth 8.75 GHz to 11.14 GHz; bandwidth enhancement; double circular ring element; frequency 10 GHz; frequency band; linear reflection phase range; microstrip reflectarray antenna; optimum microstrip reflectarray unit cell design; phase slope value; reflection phase range value; wide-band operation; Bandwidth; Microstrip; Microstrip antenna arrays; Microstrip antennas; Substrates; Linear reflection phase range; Microstrip reflectarray antenna; Single layer structure; Waveguide approach; Wide Bandwidth;
Conference_Titel :
Frontiers of Information Technology (FIT), 2013 11th International Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-1-4799-2293-2
DOI :
10.1109/FIT.2013.35
