CN202513267U - Four-port network passive device - Google Patents

Four-port network passive device Download PDF

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Publication number
CN202513267U
CN202513267U CN 201220182872 CN201220182872U CN202513267U CN 202513267 U CN202513267 U CN 202513267U CN 201220182872 CN201220182872 CN 201220182872 CN 201220182872 U CN201220182872 U CN 201220182872U CN 202513267 U CN202513267 U CN 202513267U
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CN
China
Prior art keywords
cavity
cover plate
port network
strip
network passive
Prior art date
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Active
Application number
CN 201220182872
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Chinese (zh)
Inventor
杨水成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Huamai Technology Co Ltd
Original Assignee
Nanjing Huamai Technology Co Ltd
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Filing date
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Priority to CN 201220182872 priority Critical patent/CN202513267U/en
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Publication of CN202513267U publication Critical patent/CN202513267U/en
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Abstract

The utility model relates to a four-port network passive device. Taking an electric bridge as an example, two strip lines are arranged in a cavity, two ends of each strip line are respectively welded with joints of an input end and an output end, and the two strip lines and the cavity are fixed by an insulating strip and an insulator; and most of all, the connection of the joints and the cavity utilizes a compression manner and also utilizes an manner of adopting inner and outer cover plates, and an inner cavity of the cavity is provided with a stepped surface and is in contact with the inner cover plate in a fastening manner. The four-port network passive device disclosed by the utility model overcomes defects that micro-strip and normal strip line electric bridges can not bear high power, have large insertion loss, poor intermodulation (generally being capable of reaching -140dBc at most) and low precision of a circuit board in the prior art. The four-port network passive device disclosed by the utility model has good intermodulation (generally being capable of reaching -160dBc at most and capable of reaching -165dBc with higher requirements), and also has the characteristics of high bearing power, small insertion loss, simplicity in debugging and the like.

Description

A kind of four port network passive devices
Technical field
The utility model relates to a kind of band line electric bridge (abbreviation electric bridge), particularly, and particularly a kind of four port network passive devices.
Background technology
What at present, prior art was used is little band and normal tape line electric bridge.That little charged bridge can't carry is high-power, Insertion Loss big, intermodulation is poor, the wiring board precision is not high; The intermodulation of normal tape line electric bridge is poor.
Summary of the invention
The purpose of the utility model just is to overcome above-mentioned shortcoming, designs a kind of band line electric bridge.
The technical scheme of the utility model is: a kind of four port network passive devices, comprise joint, cover plate, cavity, band line, insulation strip, insulator, screw, and it is characterized in that joint and being connected of cavity adopting the mode of pressing; Adopt the inside and outside cover board mode; It is fastening that the cavity inner chamber has step surface to contact with inner cover plate, and outer cover plate only plays water-tight and effect attractive in appearance.
The advantage of the utility model is joint and being connected of cavity to adopt the mode of pressing with effect; Adopt the inside and outside cover board mode; It is fastening that the cavity inner chamber has step surface to contact with inner cover plate, and outer cover plate only plays water-tight and effect attractive in appearance, so intermodulation is good, and debugging is simple.
Description of drawings
Fig. 1 is the structural scheme of mechanism of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is done further explain.
Four port network passive devices of present embodiment (is example with the electric bridge) are employed in and place two band lines in the cavity; Weld with input and output end connector respectively at the two ends of band line; Two the band lines between and and cavity between fix with insulation strip and insulator; Most importantly joint and cavity be connected the mode of pressing that adopts, and adopt inside and outside cover board mode, cavity inner chamber to have step surface to be fastened to contact with inner cover plate.Shown in Fig. 1 electric bridge, joint 2 is pressed onto in the cavity 3, with screw 6 that joint 2 is fastening; Insulation strip and insulator 4 are put in 3 corresponding positions in cavity, and welding in the cavity 3 is put in 5 recruitments of a band line, put into insulation strip 4; Welding in the cavity 3 is put in another root band line 5 recruitments, put into insulation strip 4 once more, cleaning inner cavity; Inner cover plate 7 and cavity 3 usefulness screws 6 are fastening, at last that outer cover plate 1 and cavity 3 is fastening.
The utility model is connected in base station, repeater and the indoor distributed system,, uses inner cover plate 7 to contact also fastening separately simultaneously with cavity 3 because joint 2 is pressed onto in the cavity 3; So well improved intermodulation; And very stable, band line 5 usefulness sheet metals are processed, so Insertion Loss is little, load power is big; Fastening with outer cover plate 1 and cavity 3, guaranteed sealing and attractive in appearance.
The left side among Fig. 1 is after taking inner cover plate 7 and outer cover plate 1 away, the mutual assembling and the connection status of the cavity 3 that demonstrates, band line 5, insulator and insulation strip 4, joint 2, and the right is the situation that covers inner cover plate and outer cover plate.
The utility model solved little band and normal tape line electric bridge in the prior art can't carry high-power, Insertion Loss big, intermodulation poor (general maximum reaching-140dBc), the weakness that the wiring board precision is not high.Therefore the utility model has intermodulation good (general maximum reaching-160dBc requires more Gao Shikeda-165 dBc); Load power is big; Insertion Loss is little, debugs characteristics such as simple.
More than show and described basic principle of the present invention and principal character and advantage of the present invention.The technical staff of the industry should be appreciated that; The present invention is not restricted to the described embodiments; That describes in the foregoing description and the specification just explains principle of the present invention, and under the prerequisite that does not break away from spirit and scope of the invention, the present invention also has various changes and modifications; These variations and improvement all fall in the scope of the invention that requires protection, and the present invention requires protection range to be defined by its equivalent of appending claims.

Claims (3)

1. port network passive device, it is characterized in that: it comprises joint, cover plate, cavity, band line, insulation strip and insulator, screw, said joint adopts the mode of pressing with being connected of said cavity; It is fastening that the inner chamber of said cavity has step surface to contact with cover plate.
2. four port network passive devices according to claim 1 is characterized in that: said cover plate adopts the inside and outside cover board mode; The inner chamber step surface of said cavity contacts fastening with said inner cover plate, said outer cover plate plays the effect of water-tight.
3. four port network passive devices according to claim 2, its characteristic exists: place two band lines in the said cavity, and place said cavity with welding manner, between said two band lines and and cavity between fix with insulation strip and insulator.
CN 201220182872 2012-04-26 2012-04-26 Four-port network passive device Active CN202513267U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220182872 CN202513267U (en) 2012-04-26 2012-04-26 Four-port network passive device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220182872 CN202513267U (en) 2012-04-26 2012-04-26 Four-port network passive device

Publications (1)

Publication Number Publication Date
CN202513267U true CN202513267U (en) 2012-10-31

Family

ID=47065725

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220182872 Active CN202513267U (en) 2012-04-26 2012-04-26 Four-port network passive device

Country Status (1)

Country Link
CN (1) CN202513267U (en)

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 211103, No. 11, Shun Fa Road, Dongshan (Gaoqiao) industrial complex, Jiangning District, Jiangsu, Nanjing

Patentee after: NANJING HUAMAI TECHNOLOGY CO., LTD.

Address before: 211103, No. 11, Shun Fa Road, Dongshan (Gaoqiao) industrial complex, Jiangning District, Jiangsu, Nanjing

Patentee before: Nanjing Huamai Technology Co., Ltd.

C56 Change in the name or address of the patentee