Pattern measurement on millimetric frequency exclude near field mesurement.
A good way still remain the far field measurement with rotor, goniometer etc. etc.
I don't think it's a matter for a book, in any case i've found useful info on: Clarricoats, Olver - Corrugated horns for microwave antennas - Peter Peregrinus - ISBN 0 86341 003 0. (paragraph 6.2)
The book of "Antenna and EM modeling with Matlab" could be of great help to you. It serves as a complimentary material to "Antenna Theory" By Constantine A. Balanis. All the source codes have detailed explanations and the algorithm used is MoM based on RWG basis function.
See the following for a glance of the book: h**p://as.wiley.com/WileyCDA/WileyTitle/productCd-0471218766.html
It has ebook from Wiley but I cannot get a copy.
- far field signals modeling (wave_shape, amplitude, pharse, noise, fluctuations, fluxing ...) of antenna measurement systems in 2D,3D dimensions from near-field measured data at indoor measurements.
- build in matlab for model it from discrete data measured at near-field
So, do everyone know about the DFT functions or softwares which did like that works.
demo or guidations for me.
I express my thanks for any helping or advices
or e-mail to me: ngvanh78@icu.ac.kr