References
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- Corona , P. , Ferrara , G. and Gennarelli , C. 1989 . Measurement distance requirements for both symmetrical and antisymmetrical aperture antennas . IEEE Trans. Ant. and Propagat. , 37 ( No. 8 ) August : 990 – 995 .
- Stutzman , W. and Thiele , G. 1981 . Antenna Theory and Design , John Wiley & Sons : New York .
- Perini , J. 1968 . A method of obtaining a smooth pattern on circular arrays of large diameters with elements . IEEE Transactions on Broadcasting , BC-14 ( No. 3 ) September : 126 – 136 .