Tunable microwave device
From Wikipedia, the free encyclopedia
 |
All or part of this article may be confusing or unclear. Please help clarify the article. Suggestions may be on the talk page. (September 2007) |
A tunable microwave device is a device that works at radio frequency range with the dynamic tunability by an external factor, especially an electric field. The material systems for such a device usually have multilayer structure. Usually, magnetic or ferroelectric film on ferrite or superconducting film is adopted. The former two are used as the property tunable component to control the working frequency of the whole system. Devices of this type include tunable varators, tunable microwave filters, tunable phase shifters, and tunable resonators. The main application of them is re-configurable microwave networks, for example, reconfigurable wireless communication, wireless network, and reconfigurable phase array antenna.
