WO2018214558A1 - Co-frequency combiner - Google Patents

Abstract

Disclosed is a co-frequency combiner, comprising a bottom housing and a cover, wherein a 3dB bridge is arranged in the bottom housing, and the 3dB bridge comprises a first combination sheet and a second combination sheet; the first combination sheet comprises a first sub sheet, a second sub sheet and a third sub sheet of the same size and in a hexagonal shape; and the second combination sheet comprises a first coupling sheet in a hexagonal shape, and the size of the first coupling sheet is the same as that of the first sub sheet; and further comprising a rectangular isolation sheet, with the isolation sheet being connected to the first coupling sheet by means of a connection arm. The designed frequency 2700Mhz, included in LTE, can be obtained by means of computer simulation. The bridge can realize a better coupling effect in a frequency between 0.6Ghz and 3.0Ghz.

Description

 Co-frequency combiner

 Technical field

 The present invention relates to a co-frequency combiner.

 Background technique

 [0002] A 3dB bridge in the same frequency combiner becomes a same frequency combiner, which is an electrical device that couples two signals of the same frequency into one signal output, and the wide frequency band is the same frequency. The road device has always been the direction of the power splitter class. It is urgently needed to realize the broadband common-frequency combiner. Especially in the new standard LTE of the communication industry, the frequency band required by the LTE standard is 2570MHz-2620MHz, covering the standard. Combiner and co-frequency combiner.

technical problem

 Problem solution

 Technical solution

 [0003] It is an object of the present invention to overcome the above-discussed shortcomings and to provide a co-frequency combiner.

 [0004] In order to achieve the above object, the specific solution of the present invention is as follows: A co-frequency combiner includes a bottom case and a cover, wherein the bottom case is provided with a 3dB bridge, and the 3dB bridge includes a a combination sheet and a second combination sheet;

 [0005] The first composite sheet includes the first sub-piece, the second sub-slice, and the third sub-slice having the same size, and the first sub-slice to the third sub-slice are centered on the same plane. Set from the annular array; the first sub-slice, the second sub-slice, and the third sub-segment define their edges from the leftmost side as the first side, and the second side to the second side to the second side a first side of the first sub-sheet and a second side of the second sub-piece are connected by a first conductive arm of a circular arc shape, the fourth side of the first sub-sheet and the third side of the third sub-piece pass the circle An arc-shaped second conductive arm is connected; the first conductive arm extends outwardly from the first input end rod, and the second conductive arm extends outwardly from the first output end rod;

[0006] The second composite sheet includes a first coupling piece having a hexagonal shape, the first coupling piece is the same size as the first partial piece; and further includes a rectangular spacer piece, and the spacer piece passes between the first coupling piece and the first coupling piece Connecting arm connection; isolation A vertical arm extends perpendicularly from the connecting arm and the second arm and the third sub-piece are extended on both sides of the vertical arm, and the second and third sub-pieces are the same size, the same plane, and are hexagonal; The outer side of the second piece extends outwardly from the second input end rod, and the outer side of the third piece extends outwardly out of the second output end rod;

 [0007] The first composite sheet and the second composite sheet are combined, and the vertical arm is located in a gap between the second sub-sheet and the third sub-sheet, and the second sub-piece is sandwiched between the spacer and the first Between the secondary sheets, the third sub-sheet is sandwiched between the spacer and the third sub-sheet; the first sub-sheet and the first coupling sheet are disposed in parallel and the first coupling sheet is vertically projected to coincide with the first sub-sheet.

 [0008] wherein the second sub-sheet has a hexagonal first coupling gap at an angled region between the second side and the third side

[0009] wherein the angle between the second side and the third side of the third sub-sheet is provided with a hexagonal second coupling gap

[0010] wherein the first coupling piece is provided with a first notch near the two side regions.

 [0011] wherein, the top corner regions of the second sub-sheet and the third sub-sheet are each provided with a circular isolation hole.

 [0012] wherein the spacer is provided with a plurality of second slots disposed at equal intervals.

 [0013] wherein, the second sub-sheet and the spacer and the second sub-sheet are provided with an insulating top pillar.

 [0014] wherein, the third sub-sheet and the spacer and the third sub-piece are provided with an insulating top pillar.

 Advantageous effects of the invention

 Beneficial effect

 [0015] The design frequency includes 2700Mhz of LTE, which can be obtained by computer simulation. The bridge can achieve better coupling effect in the frequency range of 0.6 Ghz to 3.0 Ghz.

 Brief description of the drawing

 DRAWINGS

 1 is a perspective view of a 3 dB bridge in the same frequency combiner of the present invention;

2 is a plan view of a 3dB bridge of the same frequency combiner of the present invention; [0017] FIG.

3 is a bottom view of a 3dB bridge of the same frequency combiner of the present invention; [0018] FIG.

4 is a plan view of a first composite sheet of the present invention;

Figure 5 is a plan view of a second composite sheet of the present invention;

Figure 6 is a side view of the present invention; [0022] FIG. 7 is a perspective view of the assembly of the crucible between the first composite sheet and the second composite sheet;

[0023] FIG. 8 is another perspective view of the assembly of the crucible between the first composite sheet and the second composite sheet;

9 is a simulation diagram of the present invention;

[0025] The reference numerals in FIGS. 1 to 9 illustrate:

 [0026] al-first sub-slice; al l-first input end rod; al2-first output end rod; a2-second sub-piece; a3-third sub-piece; a4-first conductive arm; Second conductive arm; a6-first coupling gap; a7-second coupling gap;

[0027] bl-first coupling piece; bl l-circular isolation hole; bl2-first notch; b2-second piece; b3-third piece; b4-second input rod; b5- Two output rods; b6-connecting arm; b7-isolator; b71-second notch; b8-vertical arm.

Embodiments of the invention

 The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments, which are not intended to limit the scope of the invention.

[0029] As shown in FIG. 1 to FIG. 9, a co-frequency combiner according to this embodiment includes a bottom case and a cover, and the bottom case is provided with a 3dB bridge, the 3dB bridge. The first composite sheet includes a first sub-sheet a1, a second sub-sheet a2, and a third sub-sheet a3 having the same size and a hexagonal shape; the first sub-sheet a1 The third sub-slices a3 are arranged in an equidistant annular array with the center points on the same plane; the first sub-slice a1, the second sub-slice a2, and the third sub-slice a3 define their edges from the leftmost edge The first side is followed by the second side to the sixth side; the first side of the first sub-piece a1 and the second side of the second sub-piece a2 are connected by the arc-shaped first conductive arm a4 The fourth side of the first sub-sheet a1 and the third side of the third sub-sheet a3 are connected by a second-shaped conductive arm a5; the first conductive arm a4 extends outwardly from the back of the first conductive arm a4 a rod a1, the second conductive arm a5 extends outwardly from the first output end rod a2; the second composite sheet includes a hexagonal first coupling piece bl, the first coupling The sheet bl has the same size as the first sub-slice a1; further includes a rectangular spacer b7, the spacer b7 and the first coupling bl are connected by a connecting arm b6; the spacer b7 and the connecting arm b6 extend perpendicularly to the vertical arm B8, a second piece b2 and a third piece b3 are extended on both sides of the vertical arm b8, and the second piece b2 and the third piece b3 are the same size, the same plane, and are hexagonal; the second piece b2 The outer side edge extends outwardly from the second input end rod b4, and the outer side edge of the third piece b3 extends outwardly out of the second output end rod b5; the first combined piece is combined with the second combined piece, Combination 吋, vertical The arm b8 is located in the gap between the second sub-sheet a2 and the third sub-sheet a3, the second sub-sheet a2 is sandwiched between the spacer b7 and the second sub-sheet b2, and the third sub-sheet a3 is sandwiched between the spacers Between b7 and the third sub-sheet b3; the first sub-sheet a1 and the first coupling sheet bl are disposed in parallel and the first coupling sheet bl is vertically projected to coincide with the first sub-slice a1. Wherein, the second sub-sheet a2 is provided with an insulating top pillar between the spacer b7 and the second sub-sheet b2. Wherein, the third sub-sheet a3 is provided with an insulating top pillar between the spacer b7 and the third sub-sheet b3.

[0030] combining 吋, maintaining a spacing between the first composite sheet and the second composite sheet, the first composite sheet and the second composite sheet each adopting a conductor having a dielectric constant of about 2.4; the design frequency includes LTE 2700 Mhz, by a computer Simulation can be obtained. The bridge can achieve better coupling effect in the frequency range of 0.6Ghz to 3.0Ghz. As shown in Figure 8, the coupling value is about 3dB in the above required frequency band, which fully meets the design requirements. Isolation at 30+3

 About dB, in addition, it is worth mentioning that its port standing wave ratio is less than 1.25 in the frequency band. The thickness of the first coupling piece bl of the first composite piece and the second combined piece is maintained at about 3.5-4 mm, and the current carrying capacity of the bridge is up to 350W. In order to achieve the optimal coupling effect, the specific size can be optimized as follows: the first sub-slice a1, the second sub-slice a2, and the third sub-slice a3 are all regular hexagons, their side length is 65 mm, and the second conductive arm a5 The first conductive arm a4 is the same size as the first conductive arm a4, and the center of the arc is coincident with the first sub-sheet a1, the second sub-a2, and the third sub-a3; the line width of the first conductive arm a4 is: 8 mm; The end rod a1 and the first output end rod a2 have the same size, the length is: 65 mm, and the line width is 8 mm; the first coupling piece bl is the same as the first sub-piece a1; the thickness of the spacer b7 and the connecting arm b6 is the first The coupling piece bl is the same, the length and width of the spacer b7 are: 126 mm, 36 mm; the width of the connecting arm b6 is 37 mm, the length is: 47 mm; the thickness of the vertical arm b8 is 4 m, the height is 18 mm, the second piece B2 and the third piece b3 are regular hexagons, each side length is: 39 mm; the second input end rod b4 and the second output end rod b5 are the same size, the thickness is 3 mm, the line width is 4 mm, and the length is: 95 mm; The distance between the two sub-pieces a2 and the spacer b7 is 4 mm; the first coupling gap a6 and the The coupling notches a7 are all regular hexagons, the side length is: 15mm, the distance between the side and the second side and the third side of the corresponding second sub-piece a2 is 6mm; the width and length of the first notch bl2 are: 6mm and 54mm, the radius of the arc is not required, the distance from the corresponding side is: 14mm; the diameter of the circular isolation hole M l is: 8mm; the length and width of the second notch b71 are: 28mm and 4mm, radius of the arc No requirement; the distance between two adjacent second slots b71 is: 10 mm.

[0031] In this embodiment, in the embodiment, the angle between the second side and the third side of the third sub-sheet a3 is A second coupling gap a7 of the hexagon. The 5% of the second sub-sheet a2 is provided with a hexagonal first coupling notch a6, which is simulated to increase the coupling degree, and the coupling performance is 2. 5%. . It improves the coupling degree and effectively reduces the deviation of the phase difference. In this embodiment, the first coupling piece bl is provided with a first notch M2 near the two side regions. In this embodiment, the top corner regions of the second sub-sheet b2 and the third sub-plate b3 are both provided. There is a circular isolation hole bl l. In this embodiment, the spacer b7 is provided with a plurality of second notches b71 disposed at equal intervals. Used to increase isolation and increase performance.

 The above description is only a preferred embodiment of the present invention, and equivalent changes or modifications made to the structures, features, and principles described in the scope of the present invention are included in the scope of protection of the present patent application.

Claims

Claim  [Claim 1] A co-frequency combiner, comprising: a bottom case and a cover, wherein the bottom case is provided with a 3dB bridge, and the 3dB bridge includes a first sub-piece including a first a combination sheet and a second combination sheet; the first combination sheet includes a first sub-piece (al), a second sub-piece (a2), and a third sub-piece (a3) having the same size and a hexagon shape; Slice (al) to third sub-piece (a3) is arranged in an equidistant annular array with the center points on the same plane; the first sub-slice (al), the second sub-slice (a2), and the third sub-slice (a3) define their edges from the leftmost edge respectively The first side of the first sub-piece (al) and the second side of the second sub-piece (a2) pass through a circular arc. The first conductive arms (a4) are connected, and the fourth side of the first sub-piece (al) and the third side of the third sub-piece 3) are connected by a circular second-shaped conductive arm (a5); a first input end rod (al l) extends outwardly from the arm (a4), and the second conductive arm 5) extends outwardly from the arch back to the first output end rod 12); the second composite sheet includes There is a hexagonal first coupling piece (bl) having the same size as the first sub-piece (al); and a rectangular spacer (b7), spacer (b7) and The first coupling pieces (bl) are connected by a connecting arm (b6); the separating piece (b7) and the connecting arm (b6) extend perpendicularly with a vertical arm (b8), a vertical arm B8) The second piece (b2) and the third piece (b3) are extended on both sides, and the second piece (b2) and the third piece (b3) are the same size, the same plane, and are hexagonal; The outer side of the second piece (b2) extends outwardly from the second input end rod (b4), and the outer side of the third piece (b3) extends outwardly out of the second output end rod (b5); The first combined piece and the second combined piece are combined, and the vertical arm (b8) is located in a gap between the second sub-piece (a2) and the third sub-piece (a3), and the second sub-piece (a2) Between the separator (b7) and the second sheet (b2), the third sheet (a3) is sandwiched between the separator (b7) and the third sheet (b3); the first sheet ( Al) is arranged in parallel with the first coupling piece (bl) and the first coupling piece (bl) is vertically projected to coincide with the first sub-piece (al).  [Claim 2] A co-frequency combiner according to claim 1, wherein: the second sub-slice The angle between the second side and the third side of (a2) is provided with a hexagonal first coupling notch (a6) [Claim 3] A co-frequency combiner according to claim 1, wherein: the angle between the second side and the third side of the third sub-piece (a3) is hexagonal Second coupling gap (a7 [Claim 4] A co-frequency combiner according to claim 1, wherein: the first coupling piece (b  1) There is a first notch (bl2) near the two side areas. [Claim 5] A co-frequency combiner according to claim 1, wherein: said second sub-piece  (b2) and the third piece (b3) have a circular isolation hole (M l) in the top corner area [Claim 6] A co-frequency combiner according to claim 1, characterized in that: the spacer (b7) is provided with a plurality of second notches (b71) arranged equidistantly. [Claim 7] A co-frequency combiner according to claim 1, wherein: the second sub-slice 2  ) An insulating top column is provided between the spacer (b7) and the second sheet (b2). [Claim 8] A co-frequency combiner according to claim 1, wherein: the third sub-slice 3  ) There is an insulating top column between the spacer (b7) and the third (b3).