| 摘要 |
<p>A dielectric waveguide filter, comprising a single dielectric block. The single dielectric block comprises a plurality of single dielectric cavities (1) which are connected with each other, wherein each of the single dielectric cavities (1) is a solid cavity body which is made of a dielectric material, and the surface of the solid cavity body is provided with an electromagnetic shielding layer. In the dielectric waveguide filter, by using the difference between the dielectric constants of air and a dielectric, a cavity of a traditional metal-cavity waveguide filter, i.e. an air portion, is filled with a dielectric material, and the surface of the dielectric material is provided with an electromagnetic shielding layer to conduct electromagnetic shielding; and at the same time, by using the dielectric material to conduct support, the designed dielectric waveguide filter has various advantages of small volume, low weight, environmental protection, low costs, etc., and can satisfy the development trends of small volume, low weight, low costs, high performance, environmental protection, etc. of future products, such as filters, duplexers and multiplexers.</p> |
