Active receiving antenna

摘要

The slot antenna (1) is terminated at the rear by a hollow chamber filled with a dielectric. The antenna is connected via leads (L1,L2), which provide a phase correction, to a low noise preamplifier (LNA) which provides an output to the slotted structure. A defined phase angle for the received waves can be set up by using different lengths for the leads. The preamplifier and the leads are arranged inside the hollow chamber.