Microwave dielectric ceramic powder and preparation method thereof, microwave dielectric ceramics and microwave components
A technology of microwave dielectric ceramics and components, applied in the field of ceramic powder, can solve the problems of high price and long delivery time, and achieve the effect of high physical and electrical characteristics
Inactive Publication Date: 2019-07-12
SUZHOU RF TOP ELECTRONICS COMM
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Problems solved by technology
At present, the high QxFo [ceramic quality factor] value microwave dielectric raw materials with a dielectric constant of 34 in China are almost monopolized by Japan at this stage, and raw material powders of this specification need to be imported from Japan in other countries, and the price is expensive and the delivery time is long.
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[0031] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0032] The microwave dielectric ceramic powder of the present invention mainly comprises powder, and this powder comprises the barium carbonate BaCO that weight ratio is 130Kg: 5Kg: 60Kg: 10Kg: 0.4Kg 3 , zinc oxide ZnO, niobium oxide Nb 2 o 5 , cobalt oxide CoO, gallium oxide Ga 2 o 3 . The microwave dielectric ceramic powder also includes deionized water, dispersant, glue, plasticizer, and release agent when assembling and spraying; the weight ratio of the powder, deionized water, dispersant, glue, plasticizer, and release agent is 200Kg ︰190Kg︰1.0Kg︰10Kg︰10.7Kg︰1.9Kg. Wherein, the plasticizer includes polyethylene g...
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Abstract
The invention discloses microwave dielectric ceramic powder and a preparation method thereof, microwave dielectric ceramics and microwave components. The microwave dielectric ceramic powder is microwave dielectric ceramic powder with the dielectric constant of 34 and the ceramic quality factor can reach more than 90000; the microwave dielectric ceramic powder comprises powder, wherein the powder comprises barium carbonate BaCO3, zinc oxide ZnO, niobium oxide Nb2O5, cobalt oxide CoO and gallium oxide Ga2O3 in a weight ratio of 130Kg: 5Kg: 60Kg: 10Kg: 0.4Kg. The method can obtain higher Q valueand more stable temperature coefficient than common ceramic material with dielectric constant of 34, and raise QxFo [ceramic quality factor] from 75,000 to over 90,000. The invention further disclosesa preparation method of the microwave dielectric ceramic powder, and the microwave dielectric ceramics and the microwave components applying the microwave dielectric ceramic powder.
Description
[0001] This application is a divisional application of the original application with the filing date of April 20, 2016, the application number of 201610244873.6, and the invention title of "Microwave Dielectric Ceramic Powder and Its Method, Microwave Dielectric Ceramic, and Microwave Components". technical field [0002] The invention relates to ceramic powder, in particular to a microwave dielectric ceramic powder, a preparation method of the microwave dielectric ceramic powder, microwave dielectric ceramics and microwave components made of the microwave dielectric ceramic powder. Background technique [0003] Filters and resonators are needed in mobile communication base station systems, and the core raw material for producing filters and resonators is microwave dielectric ceramic powder with a dielectric constant of 34 and a QXFo value of 75,000 or more. The ceramic powder is mainly used in microwave devices such as dielectric resonators, filters, duplexers, microwave int...
Claims
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IPC IPC(8): C04B35/01C04B35/622H01P7/10H01P1/20H01P3/16H01Q1/36
CPCC04B35/495C04B35/626C04B2235/3215C04B35/01C04B35/622C04B2235/3251C04B2235/3275C04B2235/3284C04B2235/3286C04B2235/442H01P1/2002H01P3/16H01P7/10H01Q1/36
Inventor 陈荣达姜南求
Owner SUZHOU RF TOP ELECTRONICS COMM