Title :
Design optmization Of low sidelobe level microstrip array
Author :
Wahid, M. S. Abdul ; Sreenivasan, M. ; Rao, P.H.
Author_Institution :
Dept. of Electron. & Commun. Eng., Sri Venkateswara Coll. of Eng., Chennai, India
Abstract :
The effects of corporate feed network on the performance of low sidelobe level (SLL) planar array operating in X-band are analyzed. The impedance distribution at the individual sub-arrays is optimized to suppress the effects of corporate feed radiation and to achieve the required low sidelobe level (~20dB). Conventional planar feed design exhibited a distorted radiation pattern with second sidelobe level shooting upto -14dB. The proposed approach reduces the second sidelobe level and maintains nearly Gaussian tapered radiation pattern over the angle. Measured gain of the array is 21dB.
Keywords :
antenna radiation patterns; microstrip antenna arrays; optimisation; Gaussian tapered radiation pattern; X-band; corporate feed network; corporate feed radiation; design optimization; distorted radiation pattern; gain 21 dB; impedance distribution; low sidelobe level microstrip array; Antenna radiation patterns; Arrays; Feeds; Finite element analysis; Gain measurement; Microstrip; Planar arrays; corporate feed network; microstrip planar array; sidelobe level;
Conference_Titel :
Applied Electromagnetics Conference (AEMC), 2013 IEEE
Conference_Location :
Bhubaneswar
Print_ISBN :
978-1-4799-3266-5
DOI :
10.1109/AEMC.2013.7045026
