Preparation method for millimeter wave signal transmission terminal applying low-loss ceramics
A signal transmission and low-loss technology, applied in the microwave field, can solve the problem that it is difficult to meet the requirements of the device on the transmission performance of the microwave shell, and achieve the effect of excellent performance, strong versatility, and simple process
Active Publication Date: 2015-05-20
NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD
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Problems solved by technology
It is difficult for the transmission terminal of the microwave housing processed by alumina ceramics with such a high dielectric loss to meet the requirements of the device for the transmission performance of the microwave housing. Therefore, it is urgent to use new technologies to prepare low-loss ceramics.
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[0013] The embodiment is suitable for the preparation of a signal transmission terminal having a microstrip-stripline-microstrip transmission structure, is suitable for multilayer ceramics using low-loss ceramics as a transmission medium, and is suitable for multilayers realized by HTCC process methods ceramics.
[0014] Specific steps are as follows:
[0015] 1. According to the dielectric properties of low-loss ceramics, the structure of the signal transmission terminal in the required frequency band (25-35GHz) and the key dimensions of the transmission line are calculated by simulation software. The transmission structure is in the form of microstrip-stripline-microstrip. Each transmission The key dimension ratio of the form is (0.22mm-0.26mm): (0.06mm -0.10mm): (0.22mm -0.26mm), such as figure 1 shown.
[0016] 2. According to the formula of low-loss ceramics, do batching, ball mill, and cast a 0.20mm raw porcelain tape for future use.
[0017] Formula components: high-...
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The invention provides a preparation method for a millimeter wave signal transmission terminal applying low-loss ceramics. The transmission terminal can work within a frequency range of microwave to millimeter wave. The transmission structure is in the form of microstrip-strip line-microstrip. The method comprises the following steps: calculating the structure of the signal transmission terminal with a needed frequency range (25-35 GHz) and the key dimensions of transmission lines; preparing the signal transmission terminal by combining a low-loss ceramic preparation technology and an HTCC technology; and plating the signal transmission terminal with gold by using a chemical method, embedding the signal transmission terminal into a specially-produced clamp, and testing the microwave transmission performance by using a vector network analyzer. The preparation method provided by the invention has the following advantages: the loss tangent value of a transmission medium is smaller than 5*10<-4> and decreases by one order of magnitude compared to conventional ceramics, the transmission terminal can work within the microwave-to-millimeter-wave frequency range (25-35 GHz), the transmission structure is in the form of microstrip-strip line-microstrip, and besides, the process is simple, the versatility is high, and the performance is excellent.
Description
technical field [0001] The invention relates to a preparation method of a millimeter-wave signal transmission terminal using low-loss ceramics as a transmission medium, and belongs to the field of microwave technology. Background technique [0002] With the continuous development and breakthrough of high-tech with information technology as the core, the form of warfare is accelerating the transformation to informationization, and information superiority has become one of the "commanding heights" that modern warfare needs to strive for. Microwave semiconductor devices are the core technology of information acquisition, transmission, control, secrecy and processing in information-based high-tech weapons and equipment, and play a decisive role in the information emission capability, information processing capability, information confidentiality capability and information detection capability of the equipment. From the perspective of the development process of information weapon...
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IPC IPC(8): H01R13/03H01R43/16C04B35/10C04B35/64
Inventor 庞学满徐利戴洲程凯
Owner NO 55 INST CHINA ELECTRONIC SCI & TECHNOLOGYGROUP CO LTD