CN1127169C - Antenna diplexer - Google Patents
Antenna diplexer Download PDFInfo
- Publication number
- CN1127169C CN1127169C CN98100717A CN98100717A CN1127169C CN 1127169 C CN1127169 C CN 1127169C CN 98100717 A CN98100717 A CN 98100717A CN 98100717 A CN98100717 A CN 98100717A CN 1127169 C CN1127169 C CN 1127169C
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- CN
- China
- Prior art keywords
- coaxial resonator
- conductor
- usefulness
- mentioned
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/205—Comb or interdigital filters; Cascaded coaxial cavities
- H01P1/2056—Comb filters or interdigital filters with metallised resonator holes in a dielectric block
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2136—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using comb or interdigital filters; using cascaded coaxial cavities
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/04—Coaxial resonators
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
To decrease the radio waves plunging between two pairs of filters consisting of plural coaxial resonators placed in parallel to each other by arranging these resonators to be set opposite to each other at their short circuit end sides respectively. The coaxial resonators of an antenna sharing device have two pairs of filters, i.e., the transmitting filters F1 and the receiving filters F2. The short circuit end faces 6 of both filters F1 and F2 are set opposite to each other with the exposed faces 8 turned down respectively. Under such conditions, the filters F1 and F2 are put on a printed board 20. At the same time, each external conductor 11 is attached to a wide conductive part 21 by soldering. A space is secured between both filters F1 and F2. Then the internal conductor 12 of the transmitting input coaxial resonator located at the outermost side of the filter F1 is set opposite to a draw-out conductor 22, and the internal conductor 12 of the receiving output coaxial resonator located at the outermost side of the filter F2 is set opposite to a draw-out conductor 23. Then the electrical capacitive coupling is secured between both conductors 22 and 23.
Description
Technical field
The present invention relates to the last antenna multicouplers that use such as mobile phone.
Background technology
As shown in Figure 7, the antenna multicoupler that mobile phone formerly etc. go up to use has the coaxial resonator K that the dielectric 50 by ceramic constitutes, 50 of this dielectrics have the outer periphery surface 51 that is provided with external conductor 61, be provided with the inner periphery surface 52 of inner conductor 62, be provided with the short circuit end face 53 and the open end face 54 that is not connected external conductor 61 and inner conductor 62 of the end face conductor (not illustrating among the figure) that external conductor 61 and inner conductor 62 are linked together.
Like this, such coaxial resonator K has a plurality of (being 4 here) is arranged side by side two groups of filter F3 of formation, F4.
As shown in Figure 7, at this filter F3, among the F4, four coaxial resonator K and row arrangement become on same surface open end 54, and then, these four coaxial resonator K are welded into a whole with scolding tin again.
In addition, by with two filter F3, the open end face 54 of F4 is done on same surface both outer periphery surfaces 51 docks each other, and with two filter F3, the welding of the external conductor 61 usefulness scolding tin of F4 can make two filter F3, and F4 one-tenth is as a whole.
Two filter F3, a filter F3 among the F4 uses for emission, and another filter F4 uses for receiving.The lead 55 of input usefulness is drawn from the inner conductor 62 of the coaxial resonator K1 of the emission input usefulness of the filter F3 of emission usefulness, and the lead 56 of output usefulness is then drawn from the inner conductor 62 of the coaxial resonator K2 of the reception output usefulness of the filter F4 that receives usefulness.Moreover the lead 57,58 that antenna is used is from the coaxial resonator K3 of the output usefulness of the filter F3 of emission usefulness and receive the inner conductor 62 of coaxial resonator K4 of input usefulness of filter F4 of usefulness and draw.Antenna conductor 57 and 58 formation that links together.
In the antenna multicoupler formerly, because the outer periphery surface of two groups of filters docks each other, open end face is configured on the same surface, therefore, the open end face of two filters is close, and the between electromagnetic wave is crosstalked significantly, make performance depreciation, this becomes a problem.
Summary of the invention
As first solution that addresses the above problem, with two groups of filter configuration on printed base plate.These two groups of filters are connected side by side to be provided with by a plurality of coaxial resonators respectively and constitute, this coaxial resonator is then by having the outer periphery surface that is provided with external conductor, be provided with the inner periphery surface of inner conductor, the dielectric formation that is provided with the short circuit end face of the end face conductor that external conductor and inner conductor are linked together and removes the open end face of end face conductor, above-mentioned two groups of filter short circuit end faces are positioned opposite to each other each other, and the said external conductor is connected with electric conductor on being located at printed base plate.
In addition, as second solution, (promptly launching the filter of usefulness and the filter of reception usefulness) covers in the common metal basket with above-mentioned two groups of filters, the sidewall of above-mentioned basket be positioned at emission with the outermost emission input of filter side with coaxial resonator, the outermost reception output that receives with filter is relative with the side of coaxial resonator with being positioned at, the sidewall of above-mentioned basket contacts with external conductor on the side that is located at above-mentioned two coaxial resonators, and the open end face of each coaxial resonator then utilizes the sidewall sections of above-mentioned basket to cover.
As the 3rd solution, the filter of emission usefulness has the coaxial resonator of emission input usefulness and the coaxial resonator of emission output usefulness; And the filter that receives usefulness has coaxial resonator that receives input usefulness and the coaxial resonator that receives output usefulness.Antenna multicoupler of the present invention has relative respectively with the inner conductor of each coaxial resonator on printed base plate, the conductor introduction that combines on electric, and the terminal of input usefulness is exported the terminal and the antenna terminal of usefulness.Relative with the inner conductor of the coaxial resonator of the emission input usefulness electric conductor of drawing is connected with the terminal of input usefulness; Relative with the inner conductor of the coaxial resonator that the receives output usefulness electric conductor of drawing is connected with terminal with output; And relative with the inner conductor of the coaxial resonator of emission output usefulness electric conductor and relative with the inner conductor of the coaxial resonator that the receives input usefulness electric conductor of drawing of drawing is connected with antenna terminal.
As the 4th kind of solution,, cover the upper wall of the short circuit end face near zone of above-mentioned each coaxial resonator having disposed on the above-mentioned basket across on above-mentioned two groups of filters.
In addition, as the 5th kind of solution, on above-mentioned printed base plate, the lower surface of above-mentioned each coaxial resonator has the big contact current-carrying part of width.
Description of drawings
Fig. 1 is the plane graph of antenna multicoupler of the present invention;
Fig. 2 is the profile from the major part on the plane of antenna multicoupler of the present invention;
Fig. 3 is the profile of the major part seen from the front of antenna multicoupler of the present invention;
Fig. 4 is the decomposition diagram of antenna multicoupler of the present invention;
Fig. 5 is with the upturned perspective view of the coaxial resonator of antenna multicoupler of the present invention;
Fig. 6 is the perspective view of the coaxial resonator of Fig. 5 of seeing from the back side;
Fig. 7 is the perspective view of previous antenna multicoupler.
Embodiment
Below, the antenna multicoupler that uses on mobile phone of the present invention etc. is described according to Fig. 1-Fig. 6.Fig. 1 is the plane graph of antenna multicoupler of the present invention, Fig. 2 is the profile from the major part on antenna multicoupler of the present invention plane, Fig. 3 is the profile of the major part seen from front of the present invention, Fig. 4 is the decomposition diagram of antenna multicoupler of the present invention, Fig. 5 is with the upturned perspective view of the coaxial resonator of antenna multicoupler of the present invention, and Fig. 6 is the perspective view of the coaxial resonator of Fig. 5 of seeing from the back side.
As Fig. 1-Fig. 6, particularly Fig. 5 is shown in Figure 6, antenna multicoupler of the present invention has the coaxial resonator D that the dielectric 1 by ceramic constitutes, this dielectric then has as the upper surface 2 that is provided with the outer periphery surface of external conductor 11,3, two side surfaces 4 of lower surface; Be provided with the inner periphery surface 5 of inner conductor 12; Be provided with the short circuit end face 6 and the open end face 7 that is not connected external conductor 11 and inner conductor 12 of the end face conductor 13 that connects external conductor 11 and inner conductor 12.
In addition, on the open end face 7 of the lower surface 3 of dielectric 1, be provided with the exposing surface 8 that does not have external conductor 11.
Like this, as Fig. 1-shown in Figure 4, this coaxial resonator D has a plurality of (being four here) is arranged side by side two groups of filter F1 of formation, F2.
At this filter F1, among the F2, and row arrangement four coaxial resonator D, its open end face 7 and exposing surface 8 constitute on same surface respectively.Weld with scolding tin each other by the external conductor 11 that will be located on the outer periphery surface, these four coaxial resonator D can be made an integral body.
Two filter F1, a filter F1 among the F2 is for emission usefulness, and another filter F2 uses for receiving.
In addition, be used to install above-mentioned filter F1, the rectangle printed base plate 20 of F2 has and is located at a current-carrying part 21 that lip-deep width is bigger, draw electric conductor 22,23, input with terminal 25, is drawn electric conductor 26,27 and antenna terminal 28 with terminal 24, output.This draws electric conductor 22,23 near an end of the bigger electric conductor 21 of this width, clamps electric conductor 21, is located on the relative position, and this input respectively with this is drawn electric conductor 22,23 with output with terminal 25 with terminal 24 and is connected.This is drawn 26,27 of electric conductors and clip electric conductor 21 near the other end of the bigger electric conductor 21 of this width, be located on the relative position, this antenna with terminal 28 then with draw electric conductor 26 and be connected with 27.
On printed base plate 20; except input terminal 24; output with terminal 25 and antenna with beyond the part of terminal 28, draw on the electric conductor 22,23,26,27 with the coupling part that is connected these electric conductors and above-mentioned terminal on, also be provided with the diaphragm 29 of insulation.
Above-mentioned two groups of filter F1, F2 (promptly launching the filter F1 of usefulness and the filter F2 of reception usefulness) is to install like this: make its short circuit end face 6 each other toward each other, and make exposing surface 8 in the lower end, be placed on the printed base plate 20, meanwhile, utilize scolding tin that external conductor 11 is welded on the bigger electric conductor of width 21.
In addition, filter F1, F2 have the interval to separate when installing.During installation, the inner conductor 12 of coaxial resonator D1 is used in the outermost emission input that is positioned at the filter F1 of emission usefulness, and by dielectric 1, electric conductor 22 is relative with drawing; And the inner conductor 12 of the coaxial resonator D2 of usefulness is exported in the outermost reception that is positioned at the filter F2 that receives usefulness, and by dielectric 1, electric conductor 23 is relative with drawing; Inner conductor 12 and drawing between the electric conductor 22,23 separately, carry out the electric capacity combination.
Moreover the inner conductor 12 of the coaxial resonator D3 of usefulness is exported in the outermost emission that is positioned at the filter F1 of emission usefulness, and by dielectric 1, electric conductor 26 is relative with drawing; And the inner conductor 12 of the coaxial resonator D4 of usefulness is imported in the outermost reception that is positioned at the filter F2 that receives usefulness, and by dielectric 1, electric conductor 27 is relative with drawing; Inner conductor 12 and drawing between the electric conductor 26,27 separately, carry out the electric capacity combination.
The open end face 7 of filter F1 of An Zhuaning and F2 becomes the configuration status that has bigger interval each other like this, and electromagnetic wave is between the two crosstalked and can be reduced.In addition, two filter F1, the external conductor 11 of the lower surface 3 of F2 by the bigger current-carrying part 21 of width, can more reduce the filter F1 of lower surface and the electromagnetic wave between the F2 and crosstalk.
In addition, diaphragm 29 is used to reach the insulation with the external conductor 11 of electric conductor 22,23,26,27, and electric the drawing easily of coaxial resonator D carried out.
Metal box-shaped basket 30 has upper wall 31, narrow limit 33,34, two relative sidewalls 35 of aperture and two relative sidewall sections 36.This narrow limit 33 is left hole 32 and is formed on this upper wall 31; This aperture 34 is corresponding with a plurality of coaxial resonator D respectively, makes on upper wall 31.These two relative sidewalls 35 are from upper wall 31, are bent to form downwards; And these two relative sidewall sections 36 also are from upper wall 31, are bent to form downwards.
This basket 30 is placed on the printed base plate 20, and it covers the filter F1 that is installed on the printed base plate 20, and F2 covers them from the top.
When placing basket 30, its upper wall 31, contacts with it on the external conductor 11 of the upper surface 2 of F2 across at filter F1, simultaneously, is covering near the top of relative short circuit end face 6.Each narrow limit 33 is configured on the upper surface 2 of coaxial resonator D along the bonding part of a plurality of coaxial resonator D that are arranged side by side; Simultaneously, aperture 34 becomes the state on the upper surface 2 that is positioned at each coaxial resonator D.
In addition, in above-mentioned aperture 34, utilize scolding tin welding, the installation that can carry out upper wall 31 and each coaxial resonator D be electrically connected.
When basket 30 is installed, sidewall 35 be positioned at outermost emission input and be positioned at outermost reception and export and contact with being located at the external conductor 11 on the side 4 of coaxial resonator D2 with coaxial resonator D1.Simultaneously, a sidewall 35 becomes and external conductor 11 state of contact of launching on coaxial resonator D3 that exports usefulness and the side 4 that is located at the coaxial resonator D4 that receives input usefulness.
Moreover when basket 30 was installed, its two sidewall sections 36 became filter F1, the state of the open end face 7 of F2 of covering.Simultaneously, be placed on the sidewall 35 and the sidewall sections 36 of the basket 30 on the printed base plate 20,, become state with 24,25,28 insulation of each terminal by diaphragm 29.
The antenna multicoupler of said structure by the bigger current-carrying part 21 of width, can prevent that the electromagnetic wave of lower surface from crosstalking; By upper wall 31, can prevent that the electromagnetic wave of upper surface from crosstalking again; Utilize sidewall 35 again, can prevent that the electromagnetic wave of side from crosstalking; Utilize sidewall sections 36, will open end face 7 and clog, can prevent to crosstalk from the electromagnetic wave that open end face 7 sends.
Like this, this antenna multicoupler when receiving, with terminal 28 inputs, is used terminal 25 outputs from exporting from antenna; And when emission, then import with terminal 24 from input, from antenna terminal 28 outputs.
Except the foregoing description, shown in Fig. 5 dotted line, like that, electrode part 9 can be set on exposing surface 8; Like this, just can be between inner conductor 12 and electrode part 9, inner conductor 12 and conductor introduction 22,23, between 26,27 and electrode part 9 with draw electric conductor 22,23, in three methods of the electric capacity combination between 26,27, approbate and reprobate is selected.
In antenna multicoupler of the present invention, because the short circuit end face of two groups of filters is opposite each other, between the open end face of two groups of filters, be spaced from each other bigger interval, therefore, can reduce electromagnetic crosstalking, performance is improved, simultaneously, can provide a kind of flat antenna multicoupler.
In addition, because two groups of filters are placed in the basket and on the printed base plate, the dielectric breakage that is caused by external impact etc. is reduced, usability is good.
Again, import with the contacts side surfaces of coaxial resonator with being positioned at outermost emission, can reduce at the electromagnetic wave of side and crosstalk with the coaxial resonator that receives output usefulness by the sidewall that makes basket.
Again, cover the open end face of coaxial resonator, can prevent to crosstalk from the electromagnetic wave of open end face by the sidewall sections that utilizes basket.
In addition, because therefore incompatible the drawing of capacitive junctions between the electric conductor of drawing by inner conductor and printed base plate, draw simple; And, can dispose terminal local arbitrarily, thereby the terminal structure with certain degree of freedom can be provided.
Moreover because the upper wall of basket is configured to cover the near zone of relative short circuit end face across on two groups of filters, therefore, the upper surface ground connection of coaxial resonator is reliable, and can reduce at the electromagnetic wave of upper surface and crosstalk.
In addition, because the narrow edge of basket the configuration of coaxial resonator bonding part, therefore, compressing of coaxial resonator is reliable, and ground connection might as well.
Again,, scolding tin is accumulated, scolding tin is adhered to become easily, and scolding tin adhere to reliably by making aperture at upper wall.
Moreover, by the bigger current-carrying part of width is set on printed base plate, can reduce at the electromagnetic wave of lower surface and crosstalk, improve performance.
Claims (5)
1. antenna multicoupler, it is characterized in that, it has two groups of filters, these two groups of filters are connected and composed side by side by a plurality of coaxial resonators respectively, this coaxial resonator is by having the outer periphery surface that is provided with external conductor, be provided with the inner periphery surface of inner conductor, the dielectric formation that is provided with the short circuit end face of the end face conductor that connects said external conductor and inner conductor and removes the open end face of end face conductor, above-mentioned two groups of filter short circuit end faces are positioned opposite to each other each other, and the said external conductor is connected with electric conductor on being located at printed base plate.
2. antenna multicoupler as claimed in claim 1 is characterized in that, above-mentioned two groups of filters are the filter of emission usefulness and the filter of reception usefulness, and they cover in the common metallic basket; The sidewall of above-mentioned basket be positioned at emission with the outermost emission input of filter with the side of coaxial resonator be positioned at the outermost reception of the filter that receives usefulness and export and use the side of coaxial resonator relative; The sidewall of above-mentioned basket contacts with external conductor on the side that is located at above-mentioned two coaxial resonators; The open end face of each coaxial resonator is covered by the sidewall sections of above-mentioned basket.
3. antenna multicoupler as claimed in claim 2 is characterized in that, the filter of above-mentioned emission usefulness has the coaxial resonator of emission input usefulness and the coaxial resonator of emission output usefulness; The filter of above-mentioned reception usefulness has coaxial resonator that receives input usefulness and the coaxial resonator that receives output usefulness; This antenna multicoupler has on above-mentioned printed base plate that the inner conductor with above-mentioned each coaxial resonator is relative respectively, the electric electric conductor of drawing of going up combination, and the input terminal, output is with terminal and antenna terminal; The draw electric conductor relative with the inner conductor of the coaxial resonator of launching input usefulness is connected with terminal with input; The draw electric conductor relative with the inner conductor of the coaxial resonator that receives output usefulness is connected with terminal with output; The draw electric conductor relative with the inner conductor of launching the coaxial resonator of exporting usefulness is connected with antenna terminal with the electric conductor of drawing relative with the inner conductor of the coaxial resonator that receives input usefulness.
4. antenna multicoupler as claimed in claim 2 is characterized in that, covers the short circuit end face near zone of above-mentioned each coaxial resonator, is arranged on the above-mentioned basket across the upper wall on above-mentioned two groups of filters.
5. antenna multicoupler as claimed in claim 1 is characterized in that, on above-mentioned printed base plate, the lower surface of above-mentioned each coaxial resonator has the bigger contact current-carrying part of width.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9070813A JPH10256810A (en) | 1997-03-07 | 1997-03-07 | Antenna sharing device |
| JP070813/97 | 1997-03-07 | ||
| JP070813/1997 | 1997-03-07 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1195207A CN1195207A (en) | 1998-10-07 |
| CN1127169C true CN1127169C (en) | 2003-11-05 |
Family
ID=13442399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN98100717A Expired - Fee Related CN1127169C (en) | 1997-03-07 | 1998-03-06 | Antenna diplexer |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPH10256810A (en) |
| KR (1) | KR100321328B1 (en) |
| CN (1) | CN1127169C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5299685B2 (en) * | 2009-03-31 | 2013-09-25 | 宇部興産株式会社 | Dielectric duplexer |
-
1997
- 1997-03-07 JP JP9070813A patent/JPH10256810A/en not_active Withdrawn
-
1998
- 1998-03-06 CN CN98100717A patent/CN1127169C/en not_active Expired - Fee Related
- 1998-03-06 KR KR1019980007421A patent/KR100321328B1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| JPH10256810A (en) | 1998-09-25 |
| KR19980079966A (en) | 1998-11-25 |
| CN1195207A (en) | 1998-10-07 |
| KR100321328B1 (en) | 2002-03-08 |
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Legal Events
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |