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Novel microstrip isolator based on edge-guided mode structure and shielding structure

A technology of shielding structure and isolator, applied in the direction of waveguide type devices, electrical components, circuits, etc., can solve the problem of large size of the device, and achieve the effect of improving the degree of magnetization, effective utilization and weight reduction

Active Publication Date: 2017-11-24
SOUTHWEST INST OF APPLIED MAGNETICS
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] In order to solve the problems in the prior art, the present invention provides a novel microstrip isolator based on an edge-guided mode structure and a shielding structure, which solves the problem of large device volume in the prior art

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  • Novel microstrip isolator based on edge-guided mode structure and shielding structure
  • Novel microstrip isolator based on edge-guided mode structure and shielding structure

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Embodiment Construction

[0016] The present invention will be further described below in conjunction with accompanying drawing.

[0017] A novel microstrip isolator based on an edge-guided mode structure and a shielding structure, consisting of a magnetic circuit 1, a gasket 2, a permanent magnet 3, a magnetic pole 4, a ferrite substrate 5 and a microstrip circuit 6; the microstrip The circuit 6 is manufactured on the surface of the ferrite substrate 5 using a thin film circuit manufacturing process; the magnetic circuit 1, the spacer 2, the permanent magnet 3, the magnetic pole 4 and the ferrite substrate 5 are arranged in sequence from top to bottom; The permanent magnet 3 is fixed in the magnetic circuit 1; the ferrite substrate 5 is fixed in the magnetic circuit; the magnetic pole 4 is connected to the permanent magnet 3; the permanent magnet 3 and the magnetic circuit 1 is provided with a gasket 2; the magnetic circuit 1 is a U-shaped shielding structure.

[0018] The magnetic circuit 1 is a U-s...

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Abstract

The invention relates to the field of a microwave device, and discloses a novel microstrip isolator based on an edge guided mode structure and a shielding structure. The novel microstrip isolation is composed of a magnetic circuit (1), a gasket (2), a permanent magnet (4), a ferrite substrate (5) and a microstrip circuit (6). The microstrip circuit (6) is manufactured on the surface of the ferrite substrate (5). The permanent magnet (3) is fixed in the magnetic circuit (1). The ferrite substrate (5) is fixed in the magnetic circuit. The magnetic pole (4) is connected with the permanent magnet (3). The magnetic circuit (1) has a semi-shielded structure. The microstrip circuit (6) has an edge guided mode structure. Through the semi-shielded structure, the novel microstrip isolation has beneficial effects of effectively utilizing the permanent magnet, improving magnetization degree of the ferrite substrate, reducing size of the isolator, and reducing weight of the isolator.

Description

technical field [0001] The invention relates to the field of microwave devices, in particular to a novel microstrip isolator based on an edge-guided mode structure and a shielding structure. Background technique [0002] A microstrip isolator is a passive device that allows microwave signals to pass through in the forward direction and blocks reflected signals. Its function is to limit the transmission direction of the signal, so that the microwave signal can only be transmitted in one direction. [0003] In the late 1990s, a 6-18GHz microstrip isolator was designed, using an edge-guided film structure design (such as figure 1 shown). That is, the ferrite substrate is under the action of a uniform DC magnetic field, and the electromagnetic wave propagates along the edge of the microstrip line. A short-circuit-open circuit boundary is used at one edge of the microstrip line, and the DC magnetic field is strengthened outside the short-circuit boundary. The magnetic resonance...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01P1/36
Inventor 高男李扬兴刘红陈宁
Owner SOUTHWEST INST OF APPLIED MAGNETICS
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