CN203674358U

CN203674358U - Ka waveband coupler

Info

Publication number: CN203674358U
Application number: CN201320853391.2U
Authority: CN
Inventors: 朱红; 陈晨; 穆小山
Original assignee: SHAANXI YIXIN ELECTRONIC TECHNOLOGY Co Ltd
Current assignee: SHAANXI YIXIN ELECTRONIC TECHNOLOGY Co Ltd
Priority date: 2013-12-23
Filing date: 2013-12-23
Publication date: 2014-06-25
Anticipated expiration: 2023-12-23

Abstract

The utility model relates to a Ka waveband coupler. Most couplers using same kind of technology have defects of low frequency, low power, large standing waves, and nonadjustable coupling degree. A third circular waveguide port is connected with a first square waveguide chamber and a first-stage polarized sheet, a second-stage polarized sheet, and a third-stage polarized sheet are disposed on the joint. The first square waveguide chamber is connected with a coupling chamber which is connected with a second square waveguide chamber and a third square waveguide chamber that are symmetrical with each other. The second square waveguide chamber is connected with a second circular waveguide port and the third square waveguide chamber is connected with the first circular waveguide port. The coupling chamber is simultaneously connected with an absorption chamber. The absorption chamber is arranged at a side where the first square waveguide chamber is arranged. The Ka waveband coupler has advantages of good electrical and mechanical performance, polarized adjustability, a wide operating band, and a long service life, and is widely used in space communication, military communication, and TV communication systems.

Description

A kind of Ka wave band coupler

Technical field

the utility model belongs to technical field of micro communication, is specifically related to a kind of Ka wave band coupler.

Background technology

The coupler of similar technology exists that frequency is low, power is little, standing wave is large, the nonadjustable defect of the degree of coupling mostly, and power is generally in 100W, and standing-wave ratio, more than 1.5, makes coupler limited by practical, cannot meet user demand.

Summary of the invention

The purpose of this utility model is to provide a kind of Ka wave band coupler with fabulous electric and mechanical performance.

The technical scheme that the utility model adopts is:

A kind of Ka wave band coupler, is characterized in that:

Include port part, polarizing unit, capsule components and absorption piece;

Port part includes a circular waveguide mouth, No. two circular waveguide mouths and No. three circular waveguide mouths;

Polarizing unit includes one-level polarization sheet, secondary polarization sheet and three grades of polarization sheets;

Capsule components includes square wave guide cavity, No. two square wave guide cavities, No. three square wave guide cavities and coupling cavity;

Absorption piece includes absorbing cavity;

A square wave guide cavity of No. three circular waveguide mouth accesses, access place arranges one-level polarization sheet, secondary polarization sheet and three grades of polarization sheets; A square wave guide cavity access coupling cavity, coupling cavity is connected with symmetrical No. two square wave guide cavities and No. three square wave guide cavities, and No. two square wave guide cavities and No. three square wave guide cavities access respectively No. two circular waveguide mouths and a circular waveguide mouth; Coupling cavity accesses absorbing cavity simultaneously, and absorbing cavity is positioned at square wave guide cavity homonymy No. one.

The utlity model has following advantage:

The utlity model has fabulous electric and mechanical performance, there is polarization adjustability, there is 3dB, 6dB coupling adjustability; Working band is wide, long service life, and power is greater than 1000W, and voltage standing wave(VSW) is in 1.2; Radio-frequency structure design can complete the microwave transmission of high-power widescreen band, radio-frequency (RF) index excellence; Applied range, is widely used in space communication, military communication, and in television communications system.

Brief description of the drawings

Fig. 1 is the utility model overall structure schematic diagram.

Fig. 2 is the utility model internal structure schematic diagram.

Fig. 3 is the capable circle of the utility model square row waveguide transitions schematic diagram.

Fig. 4 is the utility model polarizing unit schematic diagram.

Fig. 5 is the utility model coupling unit schematic diagram.

In figure, 1-Ka wave band coupler, circular waveguide mouth of 2-, No. bis-circular waveguide mouths of 3-, No. tri-circular waveguide mouths of 4-, tri-grades of polarization sheets of 5-, 6-secondary polarization sheet, 7-one-level polarization sheet, 8-coupling cavity, square wave guide cavity of 9-, No. bis-square wave guide cavities of 10-, No. tri-square wave guide cavities of 11-, 12-absorbing cavity.

Embodiment

Below in conjunction with embodiment, the utility model is described in detail.

A kind of Ka wave band coupler that the utility model relates to, input/output format adopts circular waveguide form, includes port part, polarizing unit, capsule components and absorption piece: port part includes circular waveguide mouth 2, No. two circular waveguide mouths 3 and No. three circular waveguide mouths 4; Polarizing unit includes one-level polarization sheet 7, secondary polarization sheet 6 and three grades of polarization sheets 5; Capsule components includes square wave guide cavity 9, No. two square wave guide cavities 10, No. three square wave guide cavities 11 and coupling cavitys 8; Absorption piece includes absorbing cavity 12.Capsule components adopts directly carries out cut formation cavity to metal material.Does (coupling cavity 8 have special cavity body structure?)

No. three circular waveguide mouth 4 accesses square wave guide cavity 9 No. one, and access place arranges one-level polarization sheet 7, secondary polarization sheet 6 and three grades of polarization sheets 5; No. one square wave guide cavity 9 accesses coupling cavity 8, and coupling cavity 8 is connected with symmetrical No. two square wave guide cavities 10 and No. three square wave guide cavities 11, and No. two square wave guide cavities 10 and No. three square wave guide cavities 11 access respectively No. two circular waveguide mouths 3 and a circular waveguide mouth 2; Coupling cavity 8 accesses absorbing cavity 12 simultaneously, and absorbing cavity 12 is positioned at square wave guide cavity 9 homonymies No. one.

When work, signal is by No. three circular waveguide mouth 4 input couplers, through the polarization of one-level polarization sheet 7, secondary polarization sheet 6 and three grades of polarization sheets 5, enter square wave guide cavity 9 No. one, after being converted to square wave guide, input coupling cavity 8, by No. two square wave guide cavities 10 and No. three square wave guide cavities 11, from No. two circular waveguide mouths 3 and a circular waveguide mouth 2, absorb clutter by the absorbing material of filling in absorbing cavity 12 again.

It is cited that content of the present utility model is not limited to embodiment, and the conversion of any equivalence that those of ordinary skill in the art take technical solutions of the utility model by reading the utility model specification, is claim of the present utility model and contains.

Claims

1. a Ka wave band coupler, is characterized in that:

Include port part, polarizing unit, capsule components and absorption piece;

Port part includes a circular waveguide mouth (2), No. two circular waveguide mouths (3) and No. three circular waveguide mouths (4);

Polarizing unit includes one-level polarization sheet (7), secondary polarization sheet (6) and three grades of polarization sheets (5);

Capsule components includes a square wave guide cavity (9), No. two square wave guide cavities (10), No. three square wave guide cavities (11) and coupling cavity (8);

Absorption piece includes absorbing cavity (12);

No. three circular waveguide mouths (4) square wave guide cavities of access (9), access place arranges one-level polarization sheet (7), secondary polarization sheet (6) and three grades of polarization sheets (5); A square wave guide cavity (9) access coupling cavity (8), coupling cavity (8) is connected with symmetrical No. two square wave guide cavities (10) and No. three square wave guide cavities (11), and No. two square wave guide cavities (10) and No. three square wave guide cavities (11) access respectively No. two circular waveguide mouths (3) and a circular waveguide mouth (2); Coupling cavity (8) accesses absorbing cavity (12) simultaneously, and absorbing cavity (12) is positioned at a square wave guide cavity (9) homonymy.