Title :
Analysis of Microstrip Reflectarray antenna for Indian contour beam using Powell Optimization
Author :
Langhnoja, Namrata V. ; Dwivedi, Ved Vyas
Author_Institution :
R.K. University, Rajkot, Gujarat, India
Abstract :
The Microstrip Reflectarray antenna with elements arranged in rectangular grid with circular boundary is used. Here work presents phase only synthesis method for covering India in a contour beam shape. The 2-Dimensional Fast Fourie Transofr is ised for fast computation of array factor. Directivity is calculated for entire UV - range. The cost function is defined in terms of directivity point lying within the given contour region. Powell´s optimization Method is used to obtain the optimum phase function that gives the Indian Coverage.
Keywords :
Arrays; Cost function; Feeds; Microstrip; Microstrip antennas; Reflector antennas; 2-D FFT; Phase-only synthesis; cost function; directivity; powell optimization;
Conference_Titel :
Electrical, Electronics, Signals, Communication and Optimization (EESCO), 2015 International Conference on
Conference_Location :
Visakhapatnam, India
Print_ISBN :
978-1-4799-7676-8
DOI :
10.1109/EESCO.2015.7254043
