| 摘要 |
<p>Provided are a filter and a communication module using same, which relate to the field of electronics, and solve the problems of irreversible debugging and great difficulty in production control when a method of removing a dielectric material is used to perform frequency debugging for the existing solid double-end TM mode filter. The filter comprises a metal cavity with an opening, a dielectric resonator, a metal shielding cover and a tuning component. The metal shielding cover covers the opening of the metal cavity and is fixed onto the metal cavity, the dielectric resonator is stuck and fixed between the bottom surface of the interior of the metal cavity and the metal shielding cover; the tuning component is provided in the metal shielding cover, a tuning portion of the tuning component extending into the metal cavity is located in the gap between the dielectric resonator and an inner wall of the metal cavity, and the length of the tuning portion along the direction which is perpendicular to the bottom surface of the metal cavity is adjustable. The communication module comprises the above-mentioned filter.</p> |
