CN101980402A - Built-in monitoring signal coupler of filter and filter using the same - Google Patents
Built-in monitoring signal coupler of filter and filter using the same Download PDFInfo
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- CN101980402A CN101980402A CN2010105160723A CN201010516072A CN101980402A CN 101980402 A CN101980402 A CN 101980402A CN 2010105160723 A CN2010105160723 A CN 2010105160723A CN 201010516072 A CN201010516072 A CN 201010516072A CN 101980402 A CN101980402 A CN 101980402A
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Abstract
The invention discloses a built-in monitoring signal coupler of a filter and the filter. The built-in monitoring signal coupler of the filter comprises a printed circuit substrate, a monitoring signal receiving window and a monitoring signal output joint. Two isolated channels are etched on a copper layer on the front side of the printed circuit substrate so as to form a T-shaped microstrip line on the middle part of the copper layer on the front side of the printed circuit substrate. The T-shaped microstrip line comprises a signal coupling region and a signal output region. The lateral part of the copper layer on the front side of the printed circuit substrate is provided with two earthing surfaces, namely a first earthing surface and a second earthing surface respectively. A first resistor is connected between one end of the signal coupling region and the first earthing surface. A second resistor is connected between the other end of the signal coupling region and the second earthing surface. The invention has the advantages that: the built-in monitoring signal coupler of the filter consists of a printed circuit board, a chip resistor and a potentiometer and has a simple structure and is easy to produce and the production cost is reduced; and a coupling conductor is replaced with the T-shaped microstrip line, so the built-in monitoring signal coupler of the filter has a more compact structure and the process of arranging the coupler in the filter is simpler.
Description
Technical field
The present invention relates to a kind of coupler, especially relate to a kind of filter-incorporated pilot signal coupler and use the filter of this coupler.
Background technology
Filter is to the signal of some particular frequency range of the input signal device of filtering in addition.
In modern communications equipment, normally move in order to ensure communication equipment, need monitor signal, therefore add a pilot signal coupler at the filter output mouth, coupled signal is monitored, whether normal with the analyzing communication signal.
The coupler that the extraction of filter pilot signal is adopted mainly is made up of printed circuit board, Chip-R and coupling conductors at present, and wherein coupling conductors is " U " font copper sheet, and copper sheet thickness is several millimeters, and the coupling conductors whole height is higher.Because its structure contains coupling conductors, therefore must increase production cost with the method production of machining, and also compact inadequately on the structure.Need when coupler is assemblied in filter inside coupling conductors is placed output connector top, so there is the inconvenient problem of assembling in this kind coupler at fit on.
Summary of the invention
The filter that technical problem to be solved by this invention provides a kind of compact conformation, the filter-incorporated pilot signal coupler that is easy to produce and uses this coupler.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of filter-incorporated pilot signal coupler, comprise printed circuit substrate, pilot signal receive window and pilot signal out splice going splice, the bottom surface of described printed circuit substrate and front all apply the copper layer, the bottom surface copper layer ground connection of described printed circuit substrate, the front copper layer that it is characterized in that described printed circuit substrate etches two channel isolations, be respectively first channel isolation and second channel isolation, make the front copper layer mid portion of printed circuit substrate form T type microstrip line, described T type microstrip line comprises the signal coupling regime of transverse part and the signal output area of vertical part, one end of signal output area and the intermediate connection of signal coupling regime, described signal coupling regime is near the pilot signal receive window, described signal output area is connected with described pilot signal out splice going splice, the sidepiece of the front copper layer of printed circuit substrate forms two ground planes, be respectively first ground plane and second ground plane, be connected with first resistance between one end of described signal coupling regime and first ground plane, be connected with second resistance between the other end of described signal coupling regime and second ground plane.
Described signal output area etches the 3rd channel isolation, described the 3rd channel isolation is communicated with first channel isolation and second channel isolation, described the 3rd channel isolation is divided into the first signal output area and secondary signal output area with the signal output area, is connected with potentiometer between the first signal output area and the secondary signal output area.
One of them pin of described first resistance is welded on the signal coupling regime, another pin of described first resistance is welded on first ground plane, one of them pin of described second resistance is welded on the signal coupling regime, another pin of second resistance is welded on second ground plane, one of them pin of described potentiometer is welded on the first signal output area, and another pin of described potentiometer is welded on the secondary signal output area.
The resistance of described first resistance is 50 ohm, and the resistance of described second resistance is 50 ohm, and the Standard resistance range of described potentiometer is 0～2000 ohm.
A kind of filter, comprise signal input connector, signal output connector and signal transmission passage, described signal input connector is connected with described signal transmission passage respectively with signal output connector, the rear end that it is characterized in that signal transmission passage is provided with the pilot signal coupler, described pilot signal coupler comprises printed circuit substrate, pilot signal receive window and pilot signal out splice going splice, described pilot signal receive window is arranged on the rear end of signal transmission passage, the bottom surface of described printed circuit substrate and front all apply the copper layer, the bottom surface copper layer ground connection of described printed circuit substrate, the front copper layer of described printed circuit substrate etches two channel isolations, be respectively first channel isolation and second channel isolation, make the front copper layer mid portion of printed circuit substrate form T type microstrip line, described T type microstrip line comprises the signal coupling regime of transverse part and the signal output area of vertical part, one end of signal output area and the intermediate connection of signal coupling regime, described signal coupling regime is near the pilot signal receive window, described signal output area is connected with described pilot signal out splice going splice, the sidepiece of the front copper layer of printed circuit substrate forms two ground planes, be respectively first ground plane and second ground plane, be connected with first resistance between one end of described signal coupling regime and first ground plane, be connected with second resistance between the other end of described signal coupling regime and second ground plane.
Described signal output area etches the 3rd channel isolation, described the 3rd channel isolation is communicated with first channel isolation and second channel isolation, described the 3rd channel isolation is divided into the first signal output area and secondary signal output area with the signal output area, is connected with potentiometer between the first signal output area and the secondary signal output area.
One of them pin of described first resistance is welded on the signal coupling regime, another pin of described first resistance is welded on first ground plane, one of them pin of described second resistance is welded on the signal coupling regime, another pin of second resistance is welded on second ground plane, one of them pin of described potentiometer is welded on the first signal output area, and another pin of described potentiometer is welded on the secondary signal output area.
The resistance of described first resistance is 50 ohm, and the resistance of described second resistance is 50 ohm, and the Standard resistance range of described potentiometer is 0～2000 ohm
Compared with prior art, advantage of the present invention is made up of printed circuit board and Chip-R and potentiometer, and structure is very simple, only need carry out the welding of circuit board processing and resistance and potentiometer on producing, thereby is easy to produce and production cost is reduced.Owing to replaced coupling conductors with "T"-shaped microstrip line, therefore structurally also compact more, the process that coupler is installed on the filter is also simpler.
Description of drawings
Fig. 1 is the filter stereogram that is built-in with the pilot signal coupler of filter of the present invention;
Fig. 2 is the vertical view of filter of the present invention;
Fig. 3 is the structure chart of coupler of the present invention.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
A kind of filter-incorporated pilot signal coupler, comprise printed circuit substrate 1, pilot signal receive window 2 and pilot signal out splice going splice 3, the bottom surface of printed circuit substrate 1 and front all apply the copper layer, the bottom surface copper layer ground connection of printed circuit substrate 1, the front copper layer of printed circuit substrate 1 etches two channel isolations, be respectively first channel isolation 11 and second channel isolation 12, make the front copper layer mid portion of printed circuit substrate 1 form T type microstrip line 4, T type microstrip line 4 comprises the signal coupling regime 41 of transverse part and the signal output area 42 of vertical part, one end of signal output area 42 and the intermediate connection of signal coupling regime 41, signal coupling regime 41 is near pilot signal receive window 2, signal output area 42 is connected with pilot signal out splice going splice 3, the sidepiece of the front copper layer of printed circuit substrate 1 forms two ground planes, be respectively first ground plane 13 and second ground plane 14, be connected with first resistance 15 between one end of signal coupling regime 41 and first ground plane 13, be connected with second resistance 16 between the other end of signal coupling regime 41 and second ground plane 14.
One of them pin of first resistance 15 is welded on the signal coupling regime 41, another pin of first resistance 15 is welded on first ground plane 13, one of them pin of second resistance 16 is welded on the signal coupling regime 41, another pin of second resistance 16 is welded on second ground plane 14, one of them pin of potentiometer 18 is welded on the first signal output area 421, and another pin of potentiometer 18 is welded on the secondary signal output area 422.
The resistance of first resistance 15 is 50 ohm, and the resistance of second resistance 16 is 50 ohm, and the Standard resistance range of potentiometer 18 is 0～2000 ohm.
A kind of filter, comprise signal input connector 5, signal output connector 6 and signal transmission passage 7, signal input connector 5 is connected with signal transmission passage 7 respectively with signal output connector 6, the rear end of signal transmission passage 7 is provided with the pilot signal coupler, the pilot signal coupler comprises printed circuit substrate 1, pilot signal receive window 2 and pilot signal out splice going splice 3, pilot signal receive window 2 is arranged on the rear end of signal transmission passage 7, the bottom surface of printed circuit substrate 1 and front all apply the copper layer, the bottom surface copper layer ground connection of printed circuit substrate 1, just the bottom surface copper layer of printed circuit substrate 1 is connected with the metal shell of filter.The front copper layer of printed circuit substrate 1 etches two channel isolations, be respectively first channel isolation 11 and second channel isolation 12, make the front copper layer mid portion of printed circuit substrate 1 form T type microstrip line 4, T type microstrip line 4 comprises the signal coupling regime 41 of transverse part and the signal output area 42 of vertical part, one end of signal output area 42 and the intermediate connection of signal coupling regime 41, signal coupling regime 41 is near pilot signal receive window 2, signal output area 42 is connected with pilot signal out splice going splice 3, the sidepiece of the front copper layer of printed circuit substrate 1 forms two ground planes, be respectively first ground plane 13 and second ground plane, 14, the first ground planes 13 are connected with the metal shell of filter with second ground plane 14.Be connected with first resistance 15 between one end of signal coupling regime 41 and first ground plane 13, be connected with second resistance 16 between the other end of signal coupling regime 41 and second ground plane 14.First resistance 15 and second resistance 16 all are Chip-R.
One of them pin of first resistance 15 is welded on the signal coupling regime 41, another pin of first resistance 15 is welded on first ground plane 13, one of them pin of second resistance 16 is welded on the signal coupling regime 41, another pin of second resistance 15 is welded on second ground plane 14, one of them pin of potentiometer 18 is welded on the first signal output area 421, and another pin of potentiometer 18 is welded on the secondary signal output area 422.
The resistance of first resistance 15 is 50 ohm, and the resistance of second resistance 16 is 50 ohm, and the Standard resistance range of potentiometer 18 is 0～2000 ohm.
Claims (8)
1. filter-incorporated pilot signal coupler, comprise printed circuit substrate, pilot signal receive window and pilot signal out splice going splice, the bottom surface of described printed circuit substrate and front all apply the copper layer, the bottom surface copper layer ground connection of described printed circuit substrate, the front copper layer that it is characterized in that described printed circuit substrate etches two channel isolations, be respectively first channel isolation and second channel isolation, make the front copper layer mid portion of printed circuit substrate form T type microstrip line, described T type microstrip line comprises the signal coupling regime of transverse part and the signal output area of vertical part, one end of signal output area and the intermediate connection of signal coupling regime, described signal coupling regime is near the pilot signal receive window, described signal output area is connected with described pilot signal out splice going splice, the sidepiece of the front copper layer of printed circuit substrate forms two ground planes, be respectively first ground plane and second ground plane, be connected with first resistance between one end of described signal coupling regime and first ground plane, be connected with second resistance between the other end of described signal coupling regime and second ground plane.
2. a kind of filter-incorporated pilot signal coupler according to claim 1, it is characterized in that described signal output area etches the 3rd channel isolation, described the 3rd channel isolation is communicated with first channel isolation and second channel isolation, described the 3rd channel isolation is divided into the first signal output area and secondary signal output area with the signal output area, is connected with potentiometer between the first signal output area and the secondary signal output area.
3. a kind of filter-incorporated pilot signal coupler according to claim 2, one of them pin that it is characterized in that described first resistance is welded on the signal coupling regime, another pin of described first resistance is welded on first ground plane, one of them pin of described second resistance is welded on the signal coupling regime, another pin of second resistance is welded on second ground plane, one of them pin of described potentiometer is welded on the first signal output area, and another pin of described potentiometer is welded on the secondary signal output area.
4. a kind of filter-incorporated pilot signal coupler according to claim 1, the resistance that it is characterized in that described first resistance is 50 ohm, and the resistance of described second resistance is 50 ohm, and the Standard resistance range of described potentiometer is 0～2000 ohm.
5. filter, comprise signal input connector, signal output connector and signal transmission passage, described signal input connector is connected with described signal transmission passage respectively with signal output connector, the rear end that it is characterized in that signal transmission passage is provided with the pilot signal coupler, described pilot signal coupler comprises printed circuit substrate, pilot signal receive window and pilot signal out splice going splice, described pilot signal receive window is arranged on the rear end of signal transmission passage, the bottom surface of described printed circuit substrate and front all apply the copper layer, the bottom surface copper layer ground connection of described printed circuit substrate, the front copper layer of described printed circuit substrate etches two channel isolations, be respectively first channel isolation and second channel isolation, make the front copper layer mid portion of printed circuit substrate form T type microstrip line, described T type microstrip line comprises the signal coupling regime of transverse part and the signal output area of vertical part, one end of signal output area and the intermediate connection of signal coupling regime, described signal coupling regime is near the pilot signal receive window, described signal output area is connected with described pilot signal out splice going splice, the sidepiece of the front copper layer of printed circuit substrate forms two ground planes, be respectively first ground plane and second ground plane, be connected with first resistance between one end of described signal coupling regime and first ground plane, be connected with second resistance between the other end of described signal coupling regime and second ground plane.
6. a kind of filter according to claim 5, it is characterized in that described signal output area etches the 3rd channel isolation, described the 3rd channel isolation is communicated with first channel isolation and second channel isolation, described the 3rd channel isolation is divided into the first signal output area and secondary signal output area with the signal output area, is connected with potentiometer between the first signal output area and the secondary signal output area.
7. a kind of filter according to claim 6, one of them pin that it is characterized in that described first resistance is welded on the signal coupling regime, another pin of described first resistance is welded on first ground plane, one of them pin of described second resistance is welded on the signal coupling regime, another pin of second resistance is welded on second ground plane, one of them pin of described potentiometer is welded on the first signal output area, and another pin of described potentiometer is welded on the secondary signal output area.
8. a kind of filter according to claim 5, the resistance that it is characterized in that described first resistance is 50 ohm, and the resistance of described second resistance is 50 ohm, and the Standard resistance range of described potentiometer is 0～2000 ohm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010516072 CN101980402B (en) | 2010-10-22 | 2010-10-22 | Built-in monitoring signal coupler of filter and filter using the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010516072 CN101980402B (en) | 2010-10-22 | 2010-10-22 | Built-in monitoring signal coupler of filter and filter using the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101980402A true CN101980402A (en) | 2011-02-23 |
| CN101980402B CN101980402B (en) | 2013-06-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010516072 Expired - Fee Related CN101980402B (en) | 2010-10-22 | 2010-10-22 | Built-in monitoring signal coupler of filter and filter using the same |
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| Country | Link |
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| CN (1) | CN101980402B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428761A (en) * | 2016-01-04 | 2016-03-23 | 张家港保税区灿勤科技有限公司 | High-inhibition low-loss tuning screw no-debugging transverse electric and magnetic field (TEM) medium diplexer and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5583468A (en) * | 1995-04-03 | 1996-12-10 | Motorola, Inc. | High frequency transition from a microstrip transmission line to an MMIC coplanar waveguide |
| CN1412886A (en) * | 2001-09-12 | 2003-04-23 | 无线电射频系统公司 | Coplanar directional coupler for mixed geometrical form |
| CN1434539A (en) * | 2002-01-08 | 2003-08-06 | 株式会社村田制作所 | Filter having directional couplex and communication device |
| CN2713662Y (en) * | 2004-06-02 | 2005-07-27 | 摩比天线技术（深圳）有限公司 | Bidirectional coupler apparatus |
| CN1748364A (en) * | 2002-08-14 | 2006-03-15 | 奥普林克通讯股份有限公司 | Matched transmission line connector |
-
2010
- 2010-10-22 CN CN 201010516072 patent/CN101980402B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5583468A (en) * | 1995-04-03 | 1996-12-10 | Motorola, Inc. | High frequency transition from a microstrip transmission line to an MMIC coplanar waveguide |
| CN1412886A (en) * | 2001-09-12 | 2003-04-23 | 无线电射频系统公司 | Coplanar directional coupler for mixed geometrical form |
| CN1434539A (en) * | 2002-01-08 | 2003-08-06 | 株式会社村田制作所 | Filter having directional couplex and communication device |
| CN1748364A (en) * | 2002-08-14 | 2006-03-15 | 奥普林克通讯股份有限公司 | Matched transmission line connector |
| CN2713662Y (en) * | 2004-06-02 | 2005-07-27 | 摩比天线技术（深圳）有限公司 | Bidirectional coupler apparatus |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105428761A (en) * | 2016-01-04 | 2016-03-23 | 张家港保税区灿勤科技有限公司 | High-inhibition low-loss tuning screw no-debugging transverse electric and magnetic field (TEM) medium diplexer and manufacturing method thereof |
| CN105428761B (en) * | 2016-01-04 | 2018-05-29 | 张家港保税区灿勤科技有限公司 | Height inhibits low-loss tune spiral shell and exempts to debug TEM dielectric duplexers and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101980402B (en) | 2013-06-19 |
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