Radio frequency communication circulator and isolator

A radio frequency communication and circulator technology, applied in waveguide devices, electrical components, circuits, etc., can solve the problems of small frequency range and easy to be affected by environmental temperature changes, achieve uniform magnetic field, reduce heat transfer and reduce loss Effect

Active Publication Date: 2018-10-19
优译有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems in the above-mentioned prior art that the frequency range is small and easily affected by changes in ambient temperature while ensuring a small volume, the present invention provides a method to effectively improve space utilization and reduce volume by rearranging the internal structure. A radio frequency communication circulator and isolator

Method used

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  • Radio frequency communication circulator and isolator
  • Radio frequency communication circulator and isolator
  • Radio frequency communication circulator and isolator

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Embodiment 1

[0029] This embodiment provides a radio frequency communication circulator, such as figure 1 As shown, it includes a casing 1 and an electromagnetic limiting device arranged in the casing 1. The casing 1 is provided with three connectors 2, and the electromagnetic limiting device restricts the one-way circular transmission of signals between the connectors 2; the electromagnetic limiting device includes Circuit board 3 and rotator, described rotator comprises center conductor 4 of Y-shaped structure and is arranged on the ferrite 5 that center conductor 4 is clamped on both sides of center conductor 4, is provided with additional magnetic field outside ferrite 5 to make The ferrite 5 forms a magnet 8 whose gyromagnetic property restricts incoming microwave radio frequency signals to propagate in a one-way ring.

Embodiment 2

[0031] This embodiment is optimized and defined on the basis of the above-mentioned embodiment 1, such as figure 2 , image 3 , Figure 4 , Figure 5 with Image 6As shown, one side of the housing 1 is provided with an opening and a cover plate 14 for assembly is fitted on the opening. An inner cavity 6 is also provided in the housing 1 , and the central conductor 4 and the ferrite 5 are both arranged in the inner cavity 6 . The inner cavity body 6 is a base structure, and is provided with a cavity for accommodating the gyromagnet, which is convenient for fixing. And three inductance coils 15 corresponding to the connectors 2 are arranged on the circuit board 3 , and a capacitor is provided corresponding to each inductance coil 15 . The electrical signal transmitted through the connector 2 is converted, so that the inductance coil 15 generates a stable magnetic signal. And the printed circuit board 3 selects a high-permittivity high-frequency glass fiber single-sided co...

Embodiment 3

[0033] On the basis of the above-mentioned embodiment 2, further optimization and limitation are carried out. As shown in the figure, thin films 10 are provided on both sides of the central conductor 4, so as to increase the insulating effect. A magnetically conductive sheet 7 for reducing loss is also provided on the outside of the ferrite 5 , and a magnet 8 is arranged on the outside of the magnetically conductive sheet 7 . A compensation sheet 9 is provided outside the magnet 8 .

[0034] That is to say, both sides of the central conductor 4 are film 10, ferrite 5, magnetically conductive sheet 7, magnet 8 and compensating sheet 9 from the inside to the outside, and the rotating magnet is pressed with the compensating sheet 9 on either side as the bottom. Into the inner cavity 6 and at the opening of the inner cavity 6 is provided with a screw cap 13 pressed inward to form the whole inner cavity. The rotary cover 13 can block all parts of the gyromagnetic body in the inner...

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PUM

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Abstract

The invention belongs to a radio frequency transmission device and discloses a radio frequency communication circulator and an isolator. The radio frequency communication circulator comprises a casingand an electromagnetic limiting device arranged in the casing. The casing is provided with three connectors, and the signal one-way annular transmission among the connectors is restricted by the electromagnetic limiting device. The electromagnetic limiting device comprises a circuit board and a gyromagnetic body, the gyromagnetic body comprises a center conductor of a Y-shaped structure and ferrites arranged on two sides of the center conductor to sandwich the center conductor, and an additional magnetic field is arranged at the outer side of the ferrites such that the ferrites form magnets whose gyromagnetic characteristics to restrict an incoming microwave radio frequency signal from one-way annular transmission. Through optimizing an internal structure, the volume is reduced, and the degree of integration is raised.

Description

technical field [0001] The invention belongs to the technical field of radio frequency transmission equipment, and in particular relates to a radio frequency communication circulator and isolator. Background technique [0002] Circulators and isolators are a class of microwave ferrite devices that control the transmission of microwave signals through ferrite. The isolator is a two-port device with unidirectional transmission characteristics, and the circulator is a three-port device with unidirectional transmission characteristics. Isolators and circulators have the characteristics of small size, wide frequency bandwidth, and low insertion loss, so they are widely used. The circulator is a multi-port device that transmits the incident wave entering any port to the next port in sequence according to the direction determined by the static bias magnetic field. A circulator is a non-reciprocal device with several terminals. Its notable feature is that it can transmit high-fre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01P1/36H01P1/375H01P1/38H01P1/393
CPCH01P1/36H01P1/375H01P1/38H01P1/393
Inventor 廖泰
Owner 优译有限公司
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