CN203522657U - WiMAX radio frequency front-end downlink power amplifier - Google Patents
WiMAX radio frequency front-end downlink power amplifier Download PDFInfo
- Publication number
- CN203522657U CN203522657U CN201320669016.2U CN201320669016U CN203522657U CN 203522657 U CN203522657 U CN 203522657U CN 201320669016 U CN201320669016 U CN 201320669016U CN 203522657 U CN203522657 U CN 203522657U
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- CN
- China
- Prior art keywords
- amplifying unit
- control circuit
- frequency front
- power amplifier
- wimax radio
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- 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 - Lifetime
Links
- 230000001737 promoting effect Effects 0.000 claims description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000003321 amplification Effects 0.000 description 5
- 238000003199 nucleic acid amplification method Methods 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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Abstract
The utility model discloses a WiMAX radio frequency front-end downlink power amplifier comprising a driver-stage amplifying unit, a final amplifying unit, a matching circuit unit, a power control circuit and a temperature control circuit. The input end of the driver-stage amplifying unit is connected with the signal output end of a base station. The output end of the final amplifying unit is connected with an antenna. The input end of the matching circuit unit is connected with the output end of the driver-stage amplifying unit. The output end of the matching circuit unit is connected with the input end of the final amplifying unit. The driver-stage amplifying unit is connected with the power control circuit a and the temperature control circuit b. The final amplifying unit is connected with the power control circuit A and the temperature control circuit B. The WiMAX radio frequency front-end downlink power amplifier has the advantages that the problem that professional WiMAX radio frequency front-end downlink power amplifier are not provided is effectively solved, the WiMAX radio frequency front-end can be effectively amplified, and the amplifier is high in environmental adaptability and high in reliability and stability.
Description
Technical field
The utility model relates to a kind of power amplifier, particularly relates to a kind of WiMAX radio-frequency front-end downlink power amplifier.
Background technology
WiMAX is an emerging wireless communication technology, can provide the high speed of Internet to connect.Use WiMAX, user can be in 50 kilometer range with the RFDC of carrying out of very fast speed, its network speed is 30 times of 3G network, area coverage is 10 times of NodeB, the excellent characteristic that has covering far away and high bandwidth, it is the important component part of WiMAX base station front end two-way amplifier that descending power amplifies link, and the amplification of downstream signal power is a technology of WiMAX base station front end two-way amplifier most critical, but the WiMAX radio-frequency front-end downlink power amplifier that does not have in the market special specialty, existing power amplifier amplification linear index and reliability index are low, adaptive capacity to external environment condition is poor, providing of this utility model, effectively solved above problem, for WiMAX radio-frequency front-end provides amplification linear index high, reliability index is high, stability is strong, the downlink power amplifier that adaptive capacity to environment is strong.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, provides a kind of amplification linear index high, and reliability index is high, and stability is strong, the WiMAX radio-frequency front-end downlink power amplifier that adaptive capacity to environment is strong.
The purpose of this utility model is achieved through the following technical solutions: WiMAX radio-frequency front-end downlink power amplifier, it comprises a promotion level amplifying unit, final stage amplifying unit, match circuit unit, power control circuit and temperature-control circuit, promoting level amplifying unit input is connected with base station signal output, final stage amplifying unit output is connected with antenna, match circuit unit input is connected with a promotion level amplifying unit output, match circuit unit output is connected with final stage amplifying unit input, described promotion level amplifying unit and power control circuit a, temperature-control circuit b is connected, final stage amplifying unit and power control circuit A, temperature-control circuit B is connected, described promotion level amplifying unit and final stage amplifying unit all adopt LDMOS device to design, power control circuit adopts cmos device to design.
The beneficial effects of the utility model are:
1) the utility model promotion level amplifying unit and final stage amplifying unit all adopt LDMOS device to design, and to the effect of power amplification, can reach higher linear index.
2) the utility model is also designed with power control circuit, can monitor in real time and adjust the actual power of controlling amplifying circuit, makes to export safety and stability more.
3) the utility model is also designed with temperature-control circuit, can guarantee that WiMAX radio-frequency front-end downlink power amplifier carries out work under the temperature environment of safety, has further improved its reliability stability.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, as shown in Figure 1, WiMAX radio-frequency front-end downlink power amplifier, it comprises a promotion level amplifying unit, final stage amplifying unit, match circuit unit, power control circuit and temperature-control circuit, promoting level amplifying unit input is connected with base station signal output, final stage amplifying unit output is connected with antenna, match circuit unit input is connected with a promotion level amplifying unit output, match circuit unit output is connected with final stage amplifying unit input, described promotion level amplifying unit and power control circuit a, temperature-control circuit b is connected, final stage amplifying unit and power control circuit A, temperature-control circuit B is connected, described promotion level amplifying unit and final stage amplifying unit all adopt LDMOS device to design, power control circuit adopts cmos device to design.
Claims (3)
1.WiMAX radio-frequency front-end downlink power amplifier, it is characterized in that: it comprises a promotion level amplifying unit, final stage amplifying unit, match circuit unit, power control circuit and temperature-control circuit, promoting level amplifying unit input is connected with base station signal output, final stage amplifying unit output is connected with antenna, match circuit unit input is connected with a promotion level amplifying unit output, match circuit unit output is connected with final stage amplifying unit input, described promotion level amplifying unit and power control circuit a, temperature-control circuit b is connected, final stage amplifying unit and power control circuit A, temperature-control circuit B is connected.
2. WiMAX radio-frequency front-end downlink power amplifier according to claim 1, is characterized in that: described promotion level amplifying unit and final stage amplifying unit all adopt LDMOS device.
3. WiMAX radio-frequency front-end downlink power amplifier according to claim 1, is characterized in that: described power control circuit adopts cmos device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669016.2U CN203522657U (en) | 2013-10-29 | 2013-10-29 | WiMAX radio frequency front-end downlink power amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320669016.2U CN203522657U (en) | 2013-10-29 | 2013-10-29 | WiMAX radio frequency front-end downlink power amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203522657U true CN203522657U (en) | 2014-04-02 |
Family
ID=50381528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320669016.2U Expired - Lifetime CN203522657U (en) | 2013-10-29 | 2013-10-29 | WiMAX radio frequency front-end downlink power amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203522657U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915256A (en) * | 2015-01-07 | 2016-08-31 | 天工方案公司 | Front-end integrated circuit for WLAN applications |
| CN111133682A (en) * | 2017-05-05 | 2020-05-08 | 意法半导体有限公司 | Method for controlling the matching of an antenna to a transmission path and corresponding device |
-
2013
- 2013-10-29 CN CN201320669016.2U patent/CN203522657U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105915256A (en) * | 2015-01-07 | 2016-08-31 | 天工方案公司 | Front-end integrated circuit for WLAN applications |
| CN111133682A (en) * | 2017-05-05 | 2020-05-08 | 意法半导体有限公司 | Method for controlling the matching of an antenna to a transmission path and corresponding device |
| CN111133682B (en) * | 2017-05-05 | 2022-06-10 | 意法半导体有限公司 | Method for controlling the matching of an antenna to a transmission path and corresponding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140402 |
|
| CX01 | Expiry of patent term |