Source of millimetric electromagnetic radiation includes resonator coupled to antenna and resonance-shifting component for lossless switching of e.g. radar array with dielectric lens

摘要

The resonator (5) is connected to a switching unit (7) or alternatively a component with variable reactance (not shown). The resonant frequency of the resonator is changed by switching the unit on and off, or by changing the reactance of the component. An antenna (9) radiates electromagnetic energy stored in the resonator, at a fixed frequency. It also includes a transmission line (6) to be coupled with the resonator.