CN202750077U - Multi-frequency-range filter - Google Patents
Multi-frequency-range filter Download PDFInfo
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- CN202750077U CN202750077U CN201220413121.5U CN201220413121U CN202750077U CN 202750077 U CN202750077 U CN 202750077U CN 201220413121 U CN201220413121 U CN 201220413121U CN 202750077 U CN202750077 U CN 202750077U
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Abstract
The utility model is suitable for the filter technology field and provides a multi-frequency-range filter respectively connected with an antenna and a signal processing circuit. The multi-frequency-range filter concretely comprises a frequency-range selection unit, wherein the selection unit is connected with the antenna and is used for selecting full-frequency-range signals received by the antenna and acquiring required frequency-range signals; and a coupling circuit, wherein the coupling circuit is connected with the frequency-range selection unit and is used for integrating the required frequency-range signals acquired by the frequency-range selection unit into a signal. The multi-frequency-range filter provided by the utility model performs multi-signal selection work in the prior art by the frequency-range selection unit and the selected multi-frequency-range signals are integrated in the multi-frequency-range signal by the coupling circuit. A single signal-processing circuit designed for every range of signals in the prior art is integrated in only one signal-processing circuit for subsequent signal processing of the multi-frequency-range signals, thereby reducing size of communication devices and production cost.
Description
Technical field
The utility model belongs to the wave filter technology field, relates in particular to a kind of multiband filter.
Background technology
Filter is widely used in the communication equipment industry as a frequency selector, and traditional filter can only be selected continuous continual frequency, as shown in Figure 1, among the figure, AB and EF section are the frequency band that curbs, BC and DE transition frequency section, the frequency range of CD for needing.
But the development along with communication network technology, the continuous appearance of multiple network system, requirement for filter not only is confined to a single frequency, a plurality of frequencies all need to select in the multisystem repeater, the reception frequency range 885MHZ-910MHZ of GSM for example, the receive frequency 825MHZ-835MHZ of CDMA suppresses the signal beyond the frequency range of needs simultaneously, and its structure as shown in Figure 2.
At present, the mode of comparatively common realization multiband has two kinds, but all has defective, is specially:
The first makes up the band pass filter of two different frequencies, also can realize the selection of multiband, but such design causes the size of filter larger, but also needs extra connection network interface;
The second with a band pass filter and a band stop filter series connection, also can realize the selection of multiband, but it has also increased size and the volume of filter, causes increasing cost.
The utility model content
The purpose of this utility model is to provide a kind of multiband filter, and the mode that the realization multiband that being intended to solve prior art provides is selected exists and for example causes the increase of filter volume, the problem that cost increases.
The utility model is achieved in that a kind of multiband filter, and described multiband filter is connected with signal processing circuit with antenna respectively, and described multiband filter specifically comprises:
Be connected with described antenna, to described antenna reception to the full frequency band signal choose, obtain the frequency range of the frequency band signals that needs and choose the unit;
Choose the unit with described frequency range and be connected, the frequency band signals that described frequency range is chosen the needs that unit selection gets access to is integrated into the coupling circuit of one road signal.
As a kind of improved plan, described coupling circuit is the LC high pass low pass circuit of inductance and capacitance type.
As a kind of improved plan, described coupling circuit is the duplexer of broad passband.
The multiband filter that the utility model provides is provided with: be connected with described antenna, to described antenna reception to the full frequency band signal choose, obtain the frequency range of the frequency band signals that needs and choose the unit; Choose the unit with described frequency range and be connected, the frequency band signals that described frequency range is chosen the needs that unit selection gets access to is integrated into the coupling circuit of one road signal.The utility model is chosen work with the prior art multiple signals and is chosen the unit by frequency range and carry out, multi-band signal is chosen by overcoupled circuits and is combined into one road multi-band signal, signal processing circuit of the independent design of the signal of existing every band frequency is integrated into a signal processing circuit multi-band signal is carried out follow-up signal processing, thereby reduced the volume of communication equipment, also reduced production cost.
Description of drawings
Fig. 1 is the schematic diagram that the filter single-frequency that provides of prior art is selected;
Fig. 2 is the structural representation of the multiband filter that provides of prior art;
Fig. 3 is the structural representation of the multiband filter that provides of the utility model;
Fig. 4 is the multiband filter signal schematic diagram that the utility model provides;
Fig. 5 is the work schematic diagram of the multiband filter that provides of the utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the utility model.
Fig. 3 shows the structural representation of the multiband filter that the utility model provides, and for convenience of explanation, has only provided the part relevant with the utility model among the figure.
The multiband filter that the utility model provides respectively with antenna with is connected road signal processing circuit (among the figure shown in the dotted portion) and is connected, wherein, this multiband filter comprises that specifically frequency range chooses unit and coupling circuit:
Frequency range is chosen the unit and is connected with described antenna, this connected mode is that communication connects, its to antenna reception to the full frequency band signal choose, obtain the frequency band signals that needs, namely according to the frequency range demand that sets in advance, for example 858MHZ-920MHZ, and 825MHZ-835MHZ, signal to these two frequency ranges is chosen, and curbs or filter out the signal of other frequency ranges, namely acquires the frequency band signals that needs;
Coupling circuit is chosen the unit with frequency range and is connected, and the frequency band signals of described frequency range being chosen the needs that unit selection gets access to is integrated into one road signal.
For the ease of understanding, in the present embodiment, antenna is used for receiving the full frequency band signal, and namely antenna is as common signal receiver, and it can receive the communication/communication signal of full frequency band; Signal processing circuit is connected with described coupling circuit, and the road signal that includes multiband that coupling circuit is exported carries out the signal processing, and this signal processing comprises the processes such as noise amplification and power amplification.
The utility model is designed to one tunnel signal processing circuit with prior art multiple signals treatment circuit, thereby has reduced the volume of filter, has also reduced production cost.
The signal of the multiband filter that the utility model provides is processed, and what obtain is illustrated as:
As shown in Figure 4, AB, EF and HI section are the frequency band that curbs, BC, GH, IJ and DE transition frequency section, CG, the JD frequency range for needing.
In the utility model, above-mentioned frequency range choose the unit can be similar with prior art in duplexer, just distinguish to some extent with the duplexer functionality of prior art function singleness, can choose the signal of a plurality of frequency ranges.
In the utility model, above-mentioned coupling circuit is thought the LC high pass low pass circuit of inductance and capacitance type; It also can be the duplexer of broad passband, the frequency range that only need to reach required signal get final product as the minimum frequency range purpose of the height frequency range of the duplexer of high low pass or broad passband, and certain, this coupling circuit can be the circuit of other types, do not repeat them here, but not in order to limit the utility model.
In the utility model, above-mentioned signal processing circuit comprises the parts such as signal amplifier and power amplifier, do not repeat them here, but not with restriction the utility model.
For the ease of understanding, following in conjunction with Fig. 5, provided the operation principle of the multiband filter that the utility model provides:
1, the signal of antenna reception full frequency band, and the full frequency band signal is outputed to frequency range choose the unit;
2, frequency range is chosen the unit needs frequency range to choose to the full frequency band signal that receives, and namely is assumed to be to be distributed in frequency range among the figure and to choose unit up and down frequency range one and the frequency range two at two ends;
3, coupling circuit frequency range one and frequency range two that this frequency range is chosen unit selection carried out coupling processing, be coupled as one road signal, the i.e. coupling circuit integrated signal at two ends up and down among the figure, certainly processing the signal that forms for two ends up and down is that different processing modes acquires, at this not in order to limit the utility model;
4, signal processing circuit is carried out the signal processing to above-mentioned integrated signal, and this processing procedure is that the circuit of prior art is attainable processing mode, is about to integrated signal and is treated to the signal that needs form, for example the signal graph on signal processing circuit right side among the figure.
The satisfactory signal of the multiband filter output that provides from the utility model is provided from the signal of this signal processing circuit output.
The utility model is chosen work with the prior art multiple signals and is chosen the unit by frequency range and carry out, multi-band signal is chosen by overcoupled circuits and is combined into one road multi-band signal, signal processing circuit of the independent design of the signal of existing every band frequency is integrated into a signal processing circuit multi-band signal is carried out follow-up signal processing, thereby reduced the volume of communication equipment, also reduced production cost.。
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection range of the present utility model.
Claims (3)
1. multiband filter, described multiband filter is connected with signal processing circuit with antenna respectively, it is characterized in that, and described multiband filter specifically comprises:
Be connected with described antenna, to described antenna reception to the full frequency band signal choose, obtain the frequency range of the frequency band signals that needs and choose the unit;
Choose the unit with described frequency range and be connected, the frequency band signals that described frequency range is chosen the needs that unit selection gets access to is integrated into the coupling circuit of one road signal.
2. multiband filter according to claim 1 is characterized in that, described coupling circuit is the LC high pass low pass circuit of inductance and capacitance type.
3. multiband filter according to claim 1 is characterized in that, described coupling circuit is the duplexer of broad passband.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413121.5U CN202750077U (en) | 2012-08-20 | 2012-08-20 | Multi-frequency-range filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220413121.5U CN202750077U (en) | 2012-08-20 | 2012-08-20 | Multi-frequency-range filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202750077U true CN202750077U (en) | 2013-02-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220413121.5U Expired - Lifetime CN202750077U (en) | 2012-08-20 | 2012-08-20 | Multi-frequency-range filter |
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| CN (1) | CN202750077U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634538A (en) * | 2014-11-19 | 2016-06-01 | 三星电机株式会社 | Dual-band filter and operating method therof |
| RU2713867C1 (en) * | 2019-01-09 | 2020-02-07 | Акционерное общество "Омский научно-исследовательский институт приборостроения" (АО "ОНИИП") | Portable radio transmitter harmonics filter |
| CN112670713A (en) * | 2020-11-20 | 2021-04-16 | 南京天朗防务科技有限公司 | Active phased array antenna |
| CN114747147A (en) * | 2019-12-31 | 2022-07-12 | 华为技术有限公司 | Communication device and network equipment |
-
2012
- 2012-08-20 CN CN201220413121.5U patent/CN202750077U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105634538A (en) * | 2014-11-19 | 2016-06-01 | 三星电机株式会社 | Dual-band filter and operating method therof |
| CN105634538B (en) * | 2014-11-19 | 2020-02-11 | 三星电机株式会社 | Dual band filter and method of operating the same |
| RU2713867C1 (en) * | 2019-01-09 | 2020-02-07 | Акционерное общество "Омский научно-исследовательский институт приборостроения" (АО "ОНИИП") | Portable radio transmitter harmonics filter |
| CN114747147A (en) * | 2019-12-31 | 2022-07-12 | 华为技术有限公司 | Communication device and network equipment |
| CN114747147B (en) * | 2019-12-31 | 2023-07-14 | 华为技术有限公司 | Communication device and network equipment |
| CN112670713A (en) * | 2020-11-20 | 2021-04-16 | 南京天朗防务科技有限公司 | Active phased array antenna |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, 14, national environmental protection industrial park, 369 deer Road, hi tech Zone, Jiangsu, Suzhou Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. Address before: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATION Co.,Ltd. |
|
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 215000 No.65, Chengji Road, Hushuguan Town, high tech Zone, Suzhou City, Jiangsu Province Patentee after: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. Address before: 215129, Jiangsu province Suzhou hi tech Zone deer road environmental protection Industrial Park No. 14 factory landlord half Patentee before: SUZHOU RF TOP ELECTRONIC COMMUNICATIONS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130220 |