Composite ceramic base microstrip isolator
A technology of composite ceramics and isolators, which is applied in the direction of waveguide devices, circuits, electrical components, etc., can solve the problems of small power capacity, narrow operating frequency band of microstrip isolators, and can not meet the development needs of microwave integrated circuits, etc., to achieve increased work The effect of band bandwidth
Pending Publication Date: 2018-03-23
苏州华博电子科技有限公司
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Problems solved by technology
[0003] The existing mainstream microstrip isolators are mainly made of microstrip circuits and loads on the surface of full-scale ferrite. Due to the limitation of the characteristics of ferrite materials, the microstrip isolators produced have a narrow working frequency band and relatively low power capacity. Small, can no longer meet the development needs of microwave integrated circuits in the future
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[0015] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0016] Such as figure 1 As shown, the composite ceramic-based microstrip isolator includes a substrate, a microstrip circuit and a load resistor 6 arranged on the substrate. The load resistor 6 is a semicircular thin film resistor.
[0017] The substrate includes an aluminum nitride dielectric ceramic substrate 1, and the aluminum nitride dielectric ceramic substrate 1 is provided with an accommodating groove, and a ferrite substrate 2 is arranged in the accommodating groove, and the ferrite substrate 2 and nitrogen The surface of the aluminum oxide dielectric ceramic substrate 1 is flush, and the microstrip circuit includes a central metal junction 4 arranged on the ferrite substrate 2. Three signal transmission lines 3 are arranged on the aluminum nitride dielectric ceramic substrate 1, and the signal transmission lines 3 pass through The ...
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The invention discloses a composite ceramic base microstrip isolator and aims to realize properties of high power capacity, wide operating band, high reliability and simple structure. The composite ceramic base microstrip isolator comprises a substrate, a microstrip circuit arranged on the substrate and a load resistor, wherein the substrate comprises a dielectric ceramic substrate, the dielectricceramic substrate is provided with an accommodating groove, the accommodating groove is provided with a ferrite substrate, the ferrite substrate is flush with the surface of the dielectric ceramic substrate, the microstrip circuit comprises a central metal junction arranged on the ferrite substrate, the dielectric ceramic substrate is provided with three signal transmission wires, the signal transmission wires are connected with the central metal junction through a metalized media bridge, and one of the signal transmission wires is connected with the load resistor.
Description
technical field [0001] The invention relates to a composite ceramic base microstrip isolator. Background technique [0002] With the development of modern science and technology, microwave integrated circuits are developing in the direction of high integration, small size, light weight, and wide operating frequency, which puts forward higher requirements for the key component-microstrip isolator. [0003] The existing mainstream microstrip isolators are mainly made of microstrip circuits and loads on the surface of full-scale ferrite. Due to the limitation of the characteristics of ferrite materials, the microstrip isolators produced have a narrow working frequency band and relatively low power capacity. It is too small to meet the development needs of microwave integrated circuits in the future. Contents of the invention [0004] The technical problem to be solved by the present invention is to provide a composite ceramic-based microstrip isolator with high power capacit...
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IPC IPC(8): H01P1/36
CPCH01P1/36
Inventor 朱小明陈洋薛新忠高永全王列松
Owner 苏州华博电子科技有限公司