1. On the guided propagation of electromagnetic wave beams;Goubao;IRE Trans AP,1961
2. Near field gain of apertures in the Fresnel region;Kay;IRE Trans AP,1960
3. Properties of focused apertures in the Fresnel region;Sherman;IEEE Trans AP,1966
4. Antenna array with beam focused in near-field zone;Bogosanovic;Electron Lett,2003
5. M. Bogosanovic A.G. Williamson K.P. Thakur W.S. Holmes K.J. Cresswell 2003