CN102231637A - Tower mounted amplifier - Google Patents
Tower mounted amplifier Download PDFInfo
- Publication number
- CN102231637A CN102231637A CN2010101772580A CN201010177258A CN102231637A CN 102231637 A CN102231637 A CN 102231637A CN 2010101772580 A CN2010101772580 A CN 2010101772580A CN 201010177258 A CN201010177258 A CN 201010177258A CN 102231637 A CN102231637 A CN 102231637A
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- Prior art keywords
- band pass
- pass filter
- amplifier
- frequency range
- tower amplifier
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- 238000004891 communication Methods 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 230000008054 signal transmission Effects 0.000 abstract 4
- 238000010586 diagram Methods 0.000 description 3
- 230000002950 deficient Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
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- Amplifiers (AREA)
- Transmitters (AREA)
- Transceivers (AREA)
Abstract
The invention discloses a tower mounted amplifier which comprises a signal receiving unit and a signal transmission unit, wherein the signal receiving unit is in parallel with the signal transmission unit. The signal receiving unit comprises: a first band pass filter which is used for gating a received signal; a low noise amplifier which is used for amplifying the received signal; a second band pass filter which is used for protecting the low noise amplifier. The first band pass filter is successively connected with the low noise amplifier and the second band pass filter. The signal transmission unit is a band-stop filter which is used for gating a transmitted signal. In the invention, by using one band-stop filter and two band pass filters, the tower mounted amplifier with low loss, low noise and high inhibition can be realized. Simultaneously, a function of the two band pass filters arranged in the signal transmission unit of the traditional tower mounted amplifier can be realized by the one band-stop filter. Volume is minimized, weight is lightened and costs are reduced. Installation of the tower mounted amplifier is convenient.
Description
Technical field
The present invention relates to communication equipment field, relate in particular to a kind of tower amplifier.
Background technology
Along with the develop rapidly of wireless communication technology, the application of various radio-frequency devices more and more widely, wherein tower amplifier has obtained increasing concern as key modules.Particularly low-loss, low noise, high inhibition tower amplifier become the research emphasis of RF application.And will realize will increasing volume accordingly by kind of a high performance tower amplifier, increase cost.
The tradition tower amplifier adds LNA by duplexer and realizes that its theory diagram as shown in Figure 1.Wherein duplexer is mainly realized by two or more band pass filters.Because each band pass filter can only be realized the gating and high inhibition of single frequency range, in the time will communicating by letter simultaneously, just need a plurality of duplexer cascade operations to several frequency ranges.This conventional implementation will increase the volume and weight of tower amplifier, increase cost, also can reduce the reliability of tower amplifier simultaneously.
In summary, existing tower amplifier obviously exists inconvenience and defective on reality is used, so be necessary to be improved.
Summary of the invention
At above-mentioned defective, the object of the present invention is to provide a kind of tower amplifier, it can have the high performance while, has reduced the volume and weight of tower amplifier, has reduced cost and has been more convenient for installation.
To achieve these goals; the invention provides a kind of tower amplifier; comprise signal receiving unit and signal transmitter unit in parallel; described signal receiving unit comprises first band pass filter that is used for carrying out to received signal gating, be used to second band pass filter that amplifies the low noise amplifier of described received signal and be used to protect described low noise amplifier; described first band pass filter, low noise amplifier and second band pass filter connect successively, and described signal receiving unit is one to be used for carrying out transmitting the band stop filter of gating.
According to tower amplifier of the present invention, described first band pass filter and described second band pass filter are filter with same frequency.
According to tower amplifier of the present invention, described tower amplifier one end is connected with antenna end, and the other end is connected with the follow-up signal processing unit by cable.
According to tower amplifier of the present invention, described first band pass filter is connected with described antenna end, and described second band pass filter is connected with described follow-up signal processing unit.
According to tower amplifier of the present invention, described tower amplifier is applied to have at least in the communication system of two kinds of frequency ranges communication simultaneously.
According to tower amplifier of the present invention, described two kinds of frequency ranges are GSM frequency range and UMTS frequency range, GSM frequency range and CDMA frequency range or GSM900M frequency range and GSM1800M frequency range.
Tower amplifier of the present invention comprises signal receiving unit and signal transmitter unit in parallel, and described signal receiving unit comprises two band pass filters and low noise amplifier, and described signal receiving unit is a band stop filter.Whereby, the present invention has realized low-loss, low noise and the high tower amplifier function that suppresses by a band stop filter and two band pass filters; Simultaneously, realized the function of traditional tower amplifier, reduced volume, alleviated weight, reduced the installation of the cost and the tower amplifier of being more convenient at two band pass filters of signal transmitter unit setting with a band stop filter.
Description of drawings
Fig. 1 is the tower amplifier theory diagram of prior art;
Fig. 2 is the theory diagram of tower amplifier one embodiment of the present invention.
Embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer,, the present invention is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
As shown in Figure 2, a kind of tower amplifier 100 of the present invention is applied to have at least in the communication system of two kinds of frequency ranges communication simultaneously, and it comprises signal receiving unit 10 and signal transmitter unit 20 in parallel.Signal receiving unit 10 comprises first band pass filter 11, low noise amplifier (LNA, Low-Noise Amplifier) 12 and second band pass filter 13 that is used for carrying out to received signal gating.First band pass filter 11, low noise amplifier 12 and second band pass filter 13 connect successively.Low noise amplifier 12 is used for amplifying to received signal, improves uplink signal quality, and second band pass filter 13 is used to protect low noise amplifier 12, not by the powerful damage that transmits.Band stop filter 21 forms the signal transmitter unit 20 of tower amplifiers 100, and it is used for carrying out transmitting gating.Wherein, first band pass filter 11 and second band pass filter 13 are preferably filter with same frequency.
Tower amplifier 100 1 ends are connected with antenna end 200, and the other end is connected with follow-up signal processing unit 300 by cable.Particularly, first band pass filter 11 is connected with antenna end 200, and second band pass filter 13 is connected with follow-up signal processing unit 300.
According to one embodiment of present invention, tower amplifier 100 is used for GSM (Global System ofMobile communication, global system for mobile communications) communication of 1800 frequency ranges and UMTS (Universal MobileTelecommunications System, universal mobile telecommunications system) frequency range.In signal transmitter unit 20, realize GSM1800 transmit frequency band (frequency range: 1710MHz-1880MHz) and UMTS transmit frequency band (frequency range: low Insertion Loss gating 2110MHz-2170MHz), and UMTS is received frequency range, and (frequency range: height 1920MHz-1980MHz) suppresses by band stop filter 21.In signal receiving unit 10, first band pass filter 11 is used for realizing UMTS is received frequency range (frequency range: gating 1920MHz-1980MHz), and to GSM1800 transmit frequency band (frequency range: 1710MHz-1880MHz) with UMTS transmit frequency band (frequency range: 2110MHz-2170MHz) carry out height and suppress, make the small-signal that transmits from antenna end 200 to pass through; The signal that 12 pairs first band pass filters 11 of low noise amplifier transmit amplifies, thereby makes the noise of received signal lower, and intensity is bigger, is convenient to follow-up signal and handles; Second band pass filter 13 is used to protect low noise amplifier 12 not damaged by the high-power signal of signal transmitting terminal.Thereby low-loss, low noise, the high tower amplifier function that suppresses have been realized by first band pass filter 11, second band pass filter 13 and band stop filter 21, realized the function of two band pass filters of traditional tower amplifier simultaneously with a band stop filter, thereby reduced the volume and weight of tower amplifier 100, reduced the be more convenient for installation of tower amplifier 100 of cost.
Be understood that easily the present invention is not only applicable to above-mentioned GSM1800 frequency range and UMTS frequency range, also extends to other communications bands.For example GSM900 frequency range and GSM1800 frequency range, GSM frequency range and CDMA frequency range etc.
In sum, tower amplifier of the present invention comprises signal receiving unit and signal transmitter unit in parallel, and described signal receiving unit comprises two band pass filters and low noise amplifier, and described signal receiving unit is a band stop filter.Whereby, the present invention has realized low-loss, low noise and the high tower amplifier function that suppresses by a band stop filter and two band pass filters; Simultaneously, realized the function of traditional tower amplifier, reduced volume, alleviated weight, reduced the installation of the cost and the tower amplifier of being more convenient at two band pass filters of signal transmitter unit setting with a band stop filter.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (6)
1. tower amplifier; it is characterized in that; comprise signal receiving unit and signal transmitter unit in parallel; described signal receiving unit comprises first band pass filter that is used for carrying out to received signal gating, be used to second band pass filter that amplifies the low noise amplifier of described received signal and be used to protect described low noise amplifier; described first band pass filter, low noise amplifier and second band pass filter connect successively, and described signal receiving unit is one to be used for carrying out transmitting the band stop filter of gating.
2. tower amplifier according to claim 1 is characterized in that, described first band pass filter and described second band pass filter are filter with same frequency.
3. tower amplifier according to claim 1 is characterized in that, described tower amplifier one end is connected with antenna end, and the other end is connected with the follow-up signal processing unit by cable.
4. tower amplifier according to claim 3 is characterized in that, described first band pass filter is connected with described antenna end, and described second band pass filter is connected with described follow-up signal processing unit.
5. tower amplifier according to claim 1 is characterized in that, described tower amplifier is applied to have at least in the communication system of two kinds of frequency ranges communication simultaneously.
6. tower amplifier according to claim 5 is characterized in that, described two kinds of frequency ranges are GSM frequency range and UMTS frequency range, GSM frequency range and CDMA frequency range or GSM900M frequency range and GSM1800M frequency range.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101772580A CN102231637A (en) | 2010-05-18 | 2010-05-18 | Tower mounted amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101772580A CN102231637A (en) | 2010-05-18 | 2010-05-18 | Tower mounted amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102231637A true CN102231637A (en) | 2011-11-02 |
Family
ID=44844180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101772580A Pending CN102231637A (en) | 2010-05-18 | 2010-05-18 | Tower mounted amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102231637A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411385A (en) * | 2016-08-29 | 2017-02-15 | 西安华为技术有限公司 | Tower mounted amplifier |
| CN110620591A (en) * | 2019-08-30 | 2019-12-27 | 联想(北京)有限公司 | Frequency band splitter |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483241A (en) * | 2000-10-10 | 2004-03-17 | Adc��;��Ѷ����˾ | High frequency amplification circuit |
| CN200956583Y (en) * | 2006-08-16 | 2007-10-03 | 摩比天线技术（深圳）有限公司 | WCDMA tower top amplifier |
| CN101119143A (en) * | 2006-08-01 | 2008-02-06 | 华为技术有限公司 | Tower amplifier software updating method and system and tower amplifier |
-
2010
- 2010-05-18 CN CN2010101772580A patent/CN102231637A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1483241A (en) * | 2000-10-10 | 2004-03-17 | Adc��;��Ѷ����˾ | High frequency amplification circuit |
| CN101119143A (en) * | 2006-08-01 | 2008-02-06 | 华为技术有限公司 | Tower amplifier software updating method and system and tower amplifier |
| CN200956583Y (en) * | 2006-08-16 | 2007-10-03 | 摩比天线技术（深圳）有限公司 | WCDMA tower top amplifier |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106411385A (en) * | 2016-08-29 | 2017-02-15 | 西安华为技术有限公司 | Tower mounted amplifier |
| WO2018040985A1 (en) * | 2016-08-29 | 2018-03-08 | 华为技术有限公司 | Tower mounted amplifier |
| EP3499745A4 (en) * | 2016-08-29 | 2019-08-07 | Huawei Technologies Co., Ltd. | Tower mounted amplifier |
| CN106411385B (en) * | 2016-08-29 | 2020-01-10 | 西安华为技术有限公司 | Tower top amplifier |
| US10917054B2 (en) | 2016-08-29 | 2021-02-09 | Huawei Technologies Co., Ltd. | Tower mounted amplifier |
| CN110620591A (en) * | 2019-08-30 | 2019-12-27 | 联想(北京)有限公司 | Frequency band splitter |
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Application publication date: 20111102 |