11. The radiation zone is important because far fields in general fall off in amplitude by. 12. A compact range is an anechoic chamber with a reflector to simulate far field conditions. 13. See near and far field and multipole expansion. 14. However, because they are in the far field , their angular distribution does not change with distance. 15. This distance can be a far distance at low frequencies, and is called the far field . 16. The far field is the region in which the field acts as " normal " electromagnetic radiation. 17. They had worked only in the far fields since Serbs fired on farmers at work, wounding four. 18. The region extending farther than about 2 wavelengths away from the source is called the far field . 19. More precisely, the van Cittert Zernike theorem requires that we observe the source in the so-called far field . 20. On the other hand, the far field distance from a PSF spot is on the order of ?.
