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Design, implementation, and measurement of planar microstrip antenna sub-array

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1 Author(s)
Badr, K.H. ; Naval Inst., Jeddah, Saudi Arabia

In this paper a novel design of planar microstrip 4-by-4 sub-array is presented. This sub-array can be integrated into different antenna arrays to reach suitable specifications for different applications such as TV receivers, and direct broadcast by satellite DBS systems. It has been implemented on Rogers substrate using printed circuit board PCB technology. The present design should satisfy premium specifications such as working in a dual polarization mode, high isolation between the two orthogonal polarizations (S12=S21<-20 dB), impedance bandwidth of 17% centered around 11.75 GHz of the frequency band 10.75-12.75 GHz, low cross polarization level (<-10 dB) in both principal planes, high radiation efficiency, low side lobe levels (<-10 dB), and finally offering high gain of about 30 dBi. This required value of gain can be achieved by constructing a larger number of sub-arrays in the whole antenna array. Different works for dual polarized planar antennas have recently been reported.

Published in:

Semiconductor Device Research Symposium, 2009. ISDRS '09. International

Date of Conference:

9-11 Dec. 2009