Opto-electronic antenna test system

摘要

Antenna test system includes test antenna (AT) located in field of antenna (AN), Optoelectronic component (MD) associated with test antenna, which receives and transmits alternately optical signals from/to the remote optical transmission and/or receiver circuits, and which receives and/or transmits electrical signals from/to test antenna, electrical circuit connected between Optoelectronic component and test antenna. The component (MD) is capable of detecting a first light wave ( lambda 2) and to provide a control electric current. The electrical circuit between the component (MD) and the test antenna (AT) receives from the component (MD) the electrical control current and controls the transmission from the test antenna. The first laser optical source (L2) transmits the first light wave ( lambda 2) towards the component (MD). The component (MD) is capable of modulating a second light wave ( lambda 1) under the control of a modulating electrical current. The electrical circuit between the component (MD) and the test antenna (AT) receives from the test antenna (AT) an electrical current and controls the component (MD) in modulation mode. A photo diode sensor (PD1) optically coupled to the component (MD) detects the wave modulated by the component (MD).