System and method for measurement of antenna radiation pattern in Fresnel region

摘要

1. The art that the invention defined in the claims ; The present invention relates to an antenna radiation pattern shall measurement system and method of the Fresnel zone. ; 2. SUMMARY OF THE INVENTION The attempt to resolve ; The invention of the original force field at a distance of conventional Fresnel (Fresnel) region of the anechoic chamber conditions can not be satisfied with a remote area by several factors such as the size and frequency of the antenna (Far-field) by using the measurement system to obtain a far radiation pattern, the purpose is that to provide an antenna radiation pattern measurement system and method of the Fresnel zone. ; 3. Solution subject matter of the invention ; The present invention, in the antenna radiation pattern measurement systems in the Fresnel region, source fixed antenna in the Fresnel region to obtain a force field and a mobile antenna radiation pattern; Vertical movement means for moving up and down to adjust the measured angle of the mobile antenna; Horizontal rotation means for rotating the horizontal axis of rotation; Outputting the RF signal to the antenna (transmission antenna) for transmitting the movement of the fixed antenna or antenna and, receiving the fixed or the mobile antenna RF signals received through the antenna (reception antenna) for receiving the detected complex values of the antenna means for vector network analysis; And communication control means for controlling said vector network analysis means and control means and to the data communication; And under the control of the control and communication means, and the moving means comprises the control means for providing a vertical / horizontal rotating force to the rotation means ; 4. An important use of the invention ; The present invention used to fight and antenna radiation pattern measurements.