CN201490309U - Three-system ultra-wide-band antenna splitting device - Google Patents
Three-system ultra-wide-band antenna splitting device Download PDFInfo
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- CN201490309U CN201490309U CN2009201860226U CN200920186022U CN201490309U CN 201490309 U CN201490309 U CN 201490309U CN 2009201860226 U CN2009201860226 U CN 2009201860226U CN 200920186022 U CN200920186022 U CN 200920186022U CN 201490309 U CN201490309 U CN 201490309U
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- pass filter
- band pass
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Abstract
The utility model provides a three-system ultra-wide-band antenna splitting device, which is characterized in that a combining port, a first port, a second port and a third port are respectively arranged at two ends of a box body; the first port correspondingly receives a first frequency range; the second port correspondingly receives a second frequency range; the third port correspondingly receives a third frequency range; a first coaxial resonant cavity band-pass filter, a second coaxial resonant cavity band-pass filter and a third coaxial resonant cavity band-pass filter are arranged inside the box body; a cover plate is installed on the box body; the first coaxial resonant cavity band-pass filter, the second coaxial resonant cavity band-pass filter and the third coaxial resonant cavity band-pass filter respectively include a coaxial cavity body and a plurality of resonant rods sequentially arrayed inside the coaxial cavity body; and a tuning rod for impedance match and strengthening coupling is arranged between two adjacent resonant rods. The three-system ultra-wide-band antenna splitting device enables signals of different systems to simultaneously share one antenna, is miniaturized, and has the advantages of small insertion loss, large power capacity, high isolation belt between radio-frequency signal paths and the like.
Description
Technical field
The utility model relates to the treatment facility that carries out antenna duplexer between a kind of GSM of being used for, DCS and the WCDMA three standard systems, relates in particular to the shared device of ultra broadband three standard antennas.
Background technology
Along with developing rapidly of mobile communication, the application mode of multi-modulation scheme system colocation site, common antenna feeder resource obtains the favor of increasing operator.Can reach shared resource by these modes, reduce the effect of system equipment cost.In the multi-modulation scheme co-space feedback system, the multi-modulation scheme antenna multicoupler microwave device that is absolutely necessary, it mainly acts on is that signal to different system carries out a deciliter road, a shared antenna is to receive and to launch the signal of different systems, save feeder cable and chute to reach, avoid repeating to build tower, simplified system and the purpose that reduces cost.
The shared device of three standard ultra-wideband antennas is four port microwave devices, comprise three tunnel radiofrequency signal paths, wherein: every road radiofrequency signal path is made up of band pass filter, and the channel range of the band pass filter in the radiofrequency signal path of three kinds of different systems adapts to the frequency range setting of three standard signals on the road of closing.During work, the signal of importing from public port ANT shunts to GSM port, DCS port or WCDMA port according to frequency range, on the contrary, also the signal from GSM port, DCS port and the input of WCDMA port can be closed road output through port ANT.
The radio frequency signal frequency scope of the shared device co-space feedback system of three standard ultra-wideband antennas is 800MHz-960MHz, 1710MHz-1880MHz and 1920MHz-2170MHz, realize the working band of ultra broadband like this, present most of ultra broadband mixer product adopts dielectric substrate, with the form realization of microstrip circuit.The shortcoming of the product of this version is that volume is big, power capacity is little, and the passive intermodulation index depends on the characteristic of dielectric substrate material greatly, is difficult to control in batch process.
The utility model content
The purpose of this utility model is to provide a kind of three standard ultra-wideband antennas shared device, and the signal that makes different systems is a shared antenna simultaneously, and makes its miniaturization, and reach insert that loss is little, effect such as isolation strip height between the big radiofrequency signal path of power capacity.
For solving technical problem of the present utility model, the utility model adopts following technical scheme to realize:
The shared device of three standard ultra-wideband antennas, tank ends is respectively equipped with closes road port and corresponding first port of first frequency range, corresponding second port and corresponding the 3rd port that receives the 3rd frequency range that receives second frequency range of receiving, and be provided with first, second, third coaxial resonant cavity band pass filter in the casing, cover plate is installed on the casing, and described first, second comprises a coaxial cavity respectively with the 3rd coaxial resonant cavity band pass filter and is arranged in the interior some resonant rods of coaxial cavity in turn; Be provided with the tuning plug that is used for impedance matching and adds close coupling between adjacent two resonant rods; It is characterized in that: tuning screw rod and coupling screw rod in the coaxial cavity that extend into first, second and the 3rd coaxial resonant cavity band pass filter are installed on the described cover plate; First, second, third direct inductance coupling high tap and three direct inductance coupling high common tap place coaxial cavity two of first, second, third coaxial resonant cavity band pass filter respectively; Be respectively equipped with the condenser type cross-couplings in the coaxial cavity of described the first, the 3rd coaxial resonant cavity band pass filter; A plurality of inductance type cross-couplings are installed on the described cover plate to extend into respectively in the coaxial cavity of the first, the 3rd coaxial resonant cavity band pass filter; The first direct inductance coupling high tap inserts first port and closes between the road port; The second direct inductance coupling high tap inserts second port and closes between the road port, the 3rd direct inductance coupling high tap inserts the 3rd port and closes between the road port, and the first coaxial resonant cavity band pass filter, one end is connected with first port by the first direct inductance coupling high tap; The second coaxial resonant cavity band pass filter, one end is connected with second port by the second direct inductance coupling high tap; The 3rd coaxial resonant cavity band pass filter one end is connected with the 3rd port by the 3rd direct inductance coupling high tap; The other end of first, second and the 3rd coaxial resonant cavity band pass filter respectively by three direct inductance coupling high common tap with close road port and be connected (as figure below).
The shared device of described three standard ultra-wideband antennas, it is characterized in that being separately installed with direct coupling inductance in the coaxial cavity of first, second and the 3rd coaxial resonant cavity band pass filter, resonant rod in the coaxial cavity of first, second, third port and first, second, third coaxial resonant cavity band pass filter is connected by direct coupling inductance, and this inductance is an Equivalent Distributed parameter type inductance.
The shared device of described three standard ultra-wideband antennas is characterized in that described each inductance coupling high and capacitive coupling are distributed constant formula inductance and electric capacity.
The shared device of described three standard ultra-wideband antennas is characterized in that the number of the resonant rod in the described first coaxial resonant cavity band pass filter is 5; The number of the resonant rod in the described second coaxial resonant cavity band pass filter is 9; The number of the resonant rod in described the 3rd coaxial resonant cavity band pass filter is 10.
Leave between strutting piece upper surface and the tank floor and be not less than 1 mm clearance, to guarantee the good electrical properties and the power capacity of radiofrequency signal.
Compared with prior art, the utlity model has following beneficial effect: the utility model adopts distributed inductance cross-couplings and capacitive cross coupling, utilizes unique mode, has realized the mutual isolation between the radiofrequency signal path and the miniaturization of cavity.The application of distributed constant formula inductance cross-couplings and capacitive cross coupling, make and use product of the present utility model reduced volume greatly, and, the utility model has carried out layout to overall structure, and the improvement by structure has brought also that the insertion loss is little, power capacity big, interchannel isolation advantages of higher.
Description of drawings
Fig. 1 is the utility model casing surface structure schematic diagram.
Fig. 2 is the coaxial covering plate structure schematic diagram of the utility model.
(a), vertical view, (b), end view.
Fig. 3 is the utility model coaxial cavity structural representation.
Be labeled as among the figure:
1, cavity, 2, cover plate, 3, resonant rod, 4, the capacitive cross coupling, 5, directly inductance coupling high tap, 6, direct inductance coupling high common tap, 7, the inductance cross-couplings, 8, tuning screw rod, 9, the coupling screw rod, 10, WSCDMA port, 11, the GSM port, 12, the DSC port, 13, the ANT port.
Embodiment
The shared device of the utility model three standard ultra-wideband antennas is mainly used in GSM, DCS and antenna of WCDMA signal common is carried out a deciliter road, consults accompanying drawing.
The left side of casing is provided with first port (GSM) 11, second port (DCS) 12 and the 3rd port (WCDMA) 10, be respectively applied for the radiofrequency signal that receives 800-960MHz, 1710-1880MHz and 1920-2170MHz, the right side of casing is provided with closes road port ANT, close road port 13 (ANT) exportable first, second and the 3rd port (GSM, DCS and the WCDMA) radiofrequency signal after synthetic, or input signal shunts to first, second or the 3rd port one, 2,3.
Be provided with first, second, third coaxial resonant cavity band pass filter in the casing, cover plate 2 described first, second are installed on casing comprise respectively that with the 3rd coaxial resonant cavity band pass filter a coaxial cavity 1 is arranged in the some resonant rods 3 in the coaxial cavity in turn, is provided with the tuning plug that is used for impedance matching and adds close coupling between adjacent two resonant rods; It is characterized in that: tuning screw rod 8 and coupling screw rod 9 in the coaxial cavity that extend into first, second and the 3rd coaxial resonant cavity band pass filter are installed on the described cover plate; First, second, third direct inductance coupling high tap 5 and three direct inductance coupling high common tap 6 place coaxial cavity 1 two of first, second, third coaxial resonant cavity band pass filter respectively; Be respectively equipped with condenser type cross-couplings 4 in the coaxial cavity 1 of described the first, the 3rd coaxial resonant cavity band pass filter; Be equipped with on the described cover plate in the coaxial cavity 1 that a plurality of inductance type cross-couplings 7 extend into the first, the 3rd coaxial resonant cavity band pass filter respectively; The first direct inductance coupling high tap 5 inserts first port one 1 and closes between the road port 13; The second direct inductance coupling high tap 5 inserts second port one 2 and closes between the road port 13, the 3rd direct inductance coupling high tap 5 inserts the 3rd port one 0 and closes between the road port 13, and the first coaxial resonant cavity band pass filter, one end is connected with first port one 1 by the first direct inductance coupling high tap 5; The second coaxial resonant cavity band pass filter, one end is connected with second port one 2 by the second direct inductance coupling high tap 5; The 3rd coaxial resonant cavity band pass filter one end is connected with the 3rd port one 0 by the 3rd direct inductance coupling high tap 5; The other end of first, second and the 3rd coaxial resonant cavity band pass filter respectively by three direct inductance coupling high common tap 6 with close road port 13 and be connected.
Be separately installed with direct coupling inductance in the coaxial cavity 1 of first, second and the 3rd coaxial resonant cavity band pass filter, resonant rod 3 in the coaxial cavity of first, second, third port and first, second, third coaxial resonant cavity band pass filter is connected by direct coupling inductance, and this inductance is an Equivalent Distributed parameter type inductance.
Described each inductance coupling high and capacitive coupling are distributed constant formula inductance and electric capacity.
The number of the resonant rod in the first coaxial resonant cavity band pass filter is 5; The number of the resonant rod in the described second coaxial resonant cavity band pass filter is 9; The number of the resonant rod in described the 3rd coaxial resonant cavity band pass filter is 10.
Claims (4)
1. the shared device of three standard ultra-wideband antennas, tank ends is respectively equipped with closes road port and corresponding first port of first frequency range, corresponding second port and corresponding the 3rd port that receives the 3rd frequency range that receives second frequency range of receiving, and be provided with first, second, third coaxial resonant cavity band pass filter in the casing, cover plate is installed on the casing, and described first, second comprises a coaxial cavity respectively with the 3rd coaxial resonant cavity band pass filter and is arranged in the interior some resonant rods of coaxial cavity in turn; Be provided with the tuning plug that is used for impedance matching and adds close coupling between adjacent two resonant rods; It is characterized in that: tuning screw rod and coupling screw rod in the coaxial cavity that extend into first, second and the 3rd coaxial resonant cavity band pass filter are installed on the described cover plate; First, second, third direct inductance coupling high tap and three direct inductance coupling high common tap place coaxial cavity two of first, second, third coaxial resonant cavity band pass filter respectively; Be respectively equipped with the condenser type cross-couplings in the coaxial cavity of described the first, the 3rd coaxial resonant cavity band pass filter; A plurality of inductance type cross-couplings are installed on the described cover plate to extend into respectively in the coaxial cavity of the first, the 3rd coaxial resonant cavity band pass filter; The first direct inductance coupling high tap inserts first port and closes between the road port; The second direct inductance coupling high tap inserts second port and closes between the road port, the 3rd direct inductance coupling high tap inserts the 3rd port and closes between the road port, and the first coaxial resonant cavity band pass filter, one end is connected with first port by the first direct inductance coupling high tap; The second coaxial resonant cavity band pass filter, one end is connected with second port by the second direct inductance coupling high tap; The 3rd coaxial resonant cavity band pass filter one end is connected with the 3rd port by the 3rd direct inductance coupling high tap; The other end of first, second and the 3rd coaxial resonant cavity band pass filter respectively the common tap by three direct inductance coupling high with close road port and be connected.
2. the shared device of three standard ultra-wideband antennas according to claim 1, it is characterized in that being separately installed with direct coupling inductance in the coaxial cavity of first, second and the 3rd coaxial resonant cavity band pass filter, resonant rod in the coaxial cavity of first, second, third port and first, second, third coaxial resonant cavity band pass filter is connected by direct coupling inductance, and this inductance is an Equivalent Distributed parameter type inductance.
3. the shared device of three standard ultra-wideband antennas according to claim 1 is characterized in that described each inductance coupling high and capacitive coupling are distributed constant formula inductance and electric capacity.
4. the shared device of three standard ultra-wideband antennas according to claim 1 is characterized in that the number of the resonant rod in the described first coaxial resonant cavity band pass filter is 5; The number of the resonant rod in the described second coaxial resonant cavity band pass filter is 9; The number of the resonant rod in described the 3rd coaxial resonant cavity band pass filter is 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201860226U CN201490309U (en) | 2009-06-23 | 2009-06-23 | Three-system ultra-wide-band antenna splitting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201860226U CN201490309U (en) | 2009-06-23 | 2009-06-23 | Three-system ultra-wide-band antenna splitting device |
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| Publication Number | Publication Date |
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| CN201490309U true CN201490309U (en) | 2010-05-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009201860226U Expired - Fee Related CN201490309U (en) | 2009-06-23 | 2009-06-23 | Three-system ultra-wide-band antenna splitting device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332684A (en) * | 2014-10-23 | 2015-02-04 | 国家电网公司 | GSM (global system for mobile communications) compact filter |
| CN106159390A (en) * | 2016-06-23 | 2016-11-23 | 安庆市银瑞商贸有限公司 | A kind of mobile communication base station six port combination duplexer |
| CN110837722A (en) * | 2019-11-13 | 2020-02-25 | 中国船舶重工集团公司第七二四研究所 | Design method of high-power microwave transceiving front-end circuit |
| CN111033886A (en) * | 2018-07-20 | 2020-04-17 | 深圳市大富科技股份有限公司 | Cross coupling structure and cavity filter |
| CN113725575A (en) * | 2020-05-20 | 2021-11-30 | 大富科技(安徽)股份有限公司 | Communication equipment and filter |
-
2009
- 2009-06-23 CN CN2009201860226U patent/CN201490309U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104332684A (en) * | 2014-10-23 | 2015-02-04 | 国家电网公司 | GSM (global system for mobile communications) compact filter |
| CN106159390A (en) * | 2016-06-23 | 2016-11-23 | 安庆市银瑞商贸有限公司 | A kind of mobile communication base station six port combination duplexer |
| CN111033886A (en) * | 2018-07-20 | 2020-04-17 | 深圳市大富科技股份有限公司 | Cross coupling structure and cavity filter |
| CN110837722A (en) * | 2019-11-13 | 2020-02-25 | 中国船舶重工集团公司第七二四研究所 | Design method of high-power microwave transceiving front-end circuit |
| CN113725575A (en) * | 2020-05-20 | 2021-11-30 | 大富科技(安徽)股份有限公司 | Communication equipment and filter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100526 Termination date: 20120623 |