A kind of anti-cracking dielectric resonator and its manufacturing method
A dielectric resonator and dielectric resonance technology, applied in the field of communication, can solve the problems of increasing manufacturing cost, uneconomical, and consuming manufacturing man-hours, and achieve the effects of improving production efficiency, good filtering performance, and increasing reliability
Active Publication Date: 2020-10-02
WUHAN FINGU ELECTRONICS TECH
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Problems solved by technology
However, this invention needs to add an additional gasket that is not easy to process. When producing dielectric resonators on a large scale, it will increase the manufacturing cost and consume manufacturing man-hours. At the same time, it also increases the labor intensity of technicians, so it is not economical.
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[0028] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0029]It can be seen from the structural diagram of a crack-proof dielectric resonator shown in the accompanying drawings of the present invention that the utility model is a crack-proof dielectric resonator, which includes a cover plate 1, a tuning screw 2, a dielectric resonator rod 3 and a cavity 4 The tuning screw 2 is installed on the cover plate 1, the cover plate 1 is set above the cavity 4, the dielectric resonance rod 3 is set in the cavity 4, and the bottom surface of the cavity 4 corresponds to the dielectric resonance rod 3. There is a coaxial arrangement Annular groove 4.1 and cylindri...
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The invention discloses an anti-cracking dielectric resonator and a manufacturing method thereof. The dielectric resonator comprises a cover plate, a tuning screw, a dielectric resonant rod and a cavity; the tuning screw is mounted on the cover plate, the cover plate covers the cavity, the dielectric resonant rod is cylindrical and arranged in the cavity, and an annular groove and a cylindrical boss which are coaxial are formed at the positions, corresponding to the dielectric resonant rod, of the bottom surface of the cavity; the height of the cylindrical boss is smaller than the depth of the annular groove; the diameter of the cylindrical boss is greater than the inner diameter of the dielectric resonant rod; the dielectric resonant rod is mounted in the annular groove in a matching manner; the annular groove is filled with first soldering tin; and the dielectric resonant rod is connected with the cover plate via second soldering tin. The dielectric resonator is simple in structure and convenient to manufacture, and the dielectric resonant rod adopts a two-end welding manner, thus effectively avoiding the technical problem that the dielectric resonator cracks due to the change of difference of the dielectric resonator and metal expansion coefficients with temperature.
Description
technical field [0001] The invention relates to a dielectric resonator and a manufacturing method thereof, belonging to the technical field of communication, in particular to a crack-proof dielectric resonator and a manufacturing method thereof. Background technique [0002] Filters are widely used in various wireless communication systems to filter out signals outside the frequency of communication signals. With the continuous development of communication technology, new requirements are put forward for the filter, which requires the filter to be small in size and low in loss. The TM mode dielectric resonator filter is designed and manufactured by using the Q value, high dielectric constant, small frequency temperature coefficient and thermal expansion coefficient of ceramic dielectric materials, and can withstand high power. It has the advantages of low loss, small loss, and good temperature characteristics. Gaining importance. [0003] The TM mode filter is mainly compo...
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IPC IPC(8): H01P7/10H01P11/00
CPCH01P7/10H01P11/008
Inventor 梁傲平王一凡许建军
Owner WUHAN FINGU ELECTRONICS TECH