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X wave band laminated slice type micro-strip ferrite circulator

A ferrite and circulator technology, applied in waveguide-type devices, electrical components, circuits, etc., can solve the problems of high saturation magnetization of the substrate, increase the difficulty of magnetization, high-order wave pattern, strong radiation loss, etc., and reduce Loss, small size, improved isolation effect

Inactive Publication Date: 2013-04-03
彭龙
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Problems solved by technology

Microstrip ferrite circulators (>5GHz) working in the high frequency band, because the transmitted electromagnetic waves are based on TEM waves and are affected by the structure and size of the microstrip, there are generally problems such as strong radiation loss and high-order wave patterns; in addition , the high saturation magnetization of the substrate increases the difficulty of magnetization and is prone to uneven magnetization

Method used

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  • X wave band laminated slice type micro-strip ferrite circulator
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Embodiment approach

[0016] The present invention will be described in further detail below in conjunction with the accompanying drawings and an embodiment, and it cannot be assumed that the embodiment of the present invention is limited thereto.

[0017] An X-band laminated chip microstrip ferrite circulator, such as figure 1 and figure 2 As shown, it includes a metal ground layer 1, a ferrite substrate group 2, a disk junction 3, a small Y arm 4, and a large Y arm 5. The radius of the disk knot 3 is 1.1mm; the length and width of the small Y-arm 4 branch are 0.8mm and 0.7mm; the length and width of the first matching node of the large Y-arm (near the disk knot 3) are 0.6mm and 0.5mm mm, the middle matching section is a circular arc, the radius difference between the inner and outer arcs is 1.0mm, and the width is 1.4mm; the length and width of the third matching section (near the port) are 1.1mm and 0.7mm.

[0018] The ferrite substrate family 2, such as image 3 As shown, it is composed of...

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Abstract

The invention discloses an X wave band laminated slice type micro-strip ferrite circulator and belongs to the field of microwave ferrite devices. The circulator comprises a metal grounding layer, a ferrite substrate group, a disk knot, a small Y arm and a large Y arm. Structural form of a ferrite substrate is changed on the basis of a double-Y structure, a laminated slice type structure is used to build gradient electromagnetic parameters, so that impedance matching is improved, loss is reduced, isolation is increased and the like. Insertion loss of a device can be lowered to below 0.1dB, isolation is increased to above 50dB, and standing wave ratio is lowered to below 1.05. In addition, a impedance matching circuit of the device is smaller in size, so that integration of microwave circuits is facilitated, and the miniaturization development requirements of micro-strip ferrite circulators is adapted.

Description

technical field [0001] The invention belongs to the technical field of microwave devices, and relates to an X-band laminated microstrip ferrite circulator. Background technique [0002] The microwave circulator is a multi-port microwave passive device and is an important part of the microwave transceiver system. With the development of microwave systems in the direction of miniaturization and high integration, microstrip ferrite circulators have become the mainstream products of microwave circulators and are widely used in communication systems. The operating frequencies are mainly located in S, C, X, Ku and other bands. . The X-band (8-12GHz) microstrip ferrite circulator plays an important role in the radar system. It can form the integrated front-end of the X-band Doppler radar together with the microstrip dielectric cavity frequency stabilizer oscillator and the microstrip mixer. It has the advantages of small size and light weight, and is more suitable for portable e...

Claims

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Application Information

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IPC IPC(8): H01P1/387
Inventor 彭龙
Owner 彭龙
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