Liang, W; Nye, J F*; Hygate, G (1993) Antenna-probe interaction in the near field of a standard-gain horn antenna. In: 6th British Electromagnetic Measurements Conference Digest (BEMC 93), 2-4 November 1993, NPL, Teddington, UK.
Hygate, G (1992) How to deduce the far field of an antenna from planar near-field measurements. NPL Report. DES 123