CN204088581U - There is the broad-band reception antenna of active antenna and passive antenna handoff functionality - Google Patents
There is the broad-band reception antenna of active antenna and passive antenna handoff functionality Download PDFInfo
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- CN204088581U CN204088581U CN201420601822.0U CN201420601822U CN204088581U CN 204088581 U CN204088581 U CN 204088581U CN 201420601822 U CN201420601822 U CN 201420601822U CN 204088581 U CN204088581 U CN 204088581U
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Abstract
The utility model discloses the broad-band reception antenna with active antenna and passive antenna handoff functionality, it comprises antenna radiation unit, integrated circuit, relay and transformer, the output of described antenna radiation unit inputs with the input of integrated circuit and of relay respectively and is connected, antenna radiation unit receives the aerial radiofrequency signal in sky and this radiofrequency signal is sent to integrated circuit and relay, integrated circuit radio frequency signal carries out amplification process, another of the output of integrated circuit and relay inputs and is connected, relay carries out the switching of active antenna and passive antenna, the output of relay is connected with the input of transformer, transformer exports radiofrequency signal.The utility model, by setting up a relay thus achieving the mutual switching carrying out active antenna and passive antenna in common antenna, makes common antenna have active and passive antenna common feature simultaneously.The utility model can strengthen the dynamic range of Signal reception, and effectively reduces the volume of antenna.
Description
Technical field
The utility model relates to broad-band reception antenna field, particularly relates to the broad-band reception antenna with active antenna and passive antenna handoff functionality.
Background technology
In radio monitoring, direction finding technology, antenna is as the first order receiving spacing wave, and its performance index directly affect the working index of this monitoring, direction-finding system.
Active Receiving Antenna has the gain higher than dumb antenna, less noise, but in the environment that received field strength is stronger, do not need very high antenna gain, now just need again to use dumb antenna to guarantee the normal work of reception antenna, but set up dumb antenna in addition, will certainly increase construction cost and maintenance cost, increase equipment occupies space.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of broad-band reception antenna with active antenna and passive antenna handoff functionality is provided, possesses the feature of Active Receiving Antenna and dumb antenna, integrate Active Receiving Antenna and dumb antenna, the reception of wireless signals work of Active Receiving Antenna and dumb antenna is completed by same reception antenna, easy to use, reducing the construction costs and maintenance cost, do not increase taking up room of equipment.
The purpose of this utility model is achieved through the following technical solutions: the broad-band reception antenna with active antenna and passive antenna handoff functionality, it comprises antenna radiation unit, integrated circuit, relay and transformer, the output of described antenna radiation unit inputs with the input of integrated circuit and of relay respectively and is connected, antenna radiation unit receives the aerial radiofrequency signal in sky and this radiofrequency signal is sent to integrated circuit and relay, integrated circuit radio frequency signal carries out amplification process, another of the output of integrated circuit and relay inputs and is connected, relay carries out the switching of active antenna and passive antenna, the output of relay is connected with the input of transformer, transformer exports radiofrequency signal.
Described integrated circuit comprises amplifier.
The beneficial effects of the utility model are: the utility model realizes carrying out in common antenna the mutual switching of active antenna and passive antenna by setting up relay, make common antenna have active and common feature that is passive antenna simultaneously.When the Received signal strength amplitude in environment is very strong, adopt dumb antenna pattern, reduce the spurious signal that may occur; When receiving in-band signal and being more weak, adopt Active Receiving Antenna pattern, strengthen signal gain, be beneficial to discovery weak signal.
The utility model reception antenna possesses the feature of Active Receiving Antenna and dumb antenna, integrate Active Receiving Antenna and dumb antenna, the reception of wireless signals work of Active Receiving Antenna and dumb antenna is completed by same reception antenna, the utility model can strengthen the dynamic range of Signal reception, easy to use, reducing the construction costs and maintenance cost, do not increase taking up room of equipment, reduce the volume of antenna.
Accompanying drawing explanation
Fig. 1 is the theory diagram of the utility model reception antenna;
Fig. 2 is one of embodiment of the utility model reception antenna.
Embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is described in further detail, but protection range of the present utility model is not limited to the following stated.
As shown in Figure 1, there is the broad-band reception antenna of active antenna and passive antenna handoff functionality, it comprises antenna radiation unit, integrated circuit, relay and transformer, the output of described antenna radiation unit inputs with the input of integrated circuit and of relay respectively and is connected, antenna radiation unit receives the aerial radiofrequency signal in sky and this radiofrequency signal is sent to integrated circuit and relay, integrated circuit radio frequency signal carries out amplification process, another of the output of integrated circuit and relay inputs and is connected, relay carries out the switching of active antenna and passive antenna, the output of relay is connected with the input of transformer, transformer exports radiofrequency signal.
As shown in Figure 2, the integrated circuit in this embodiment is amplifier circuit.
When receiving signal sensitivity is too low, make RF signal output feed, the relay of reception antenna is switched to amplifier port, and feed supplies to amplifier by transformer and relay, amplifier radio frequency signal carries out amplification process, thus improves the receiving sensitivity of system.
When the Received signal strength amplitude in environment is very strong, make RF signal output not be with feed, relay is switched to passive antenna radiation port, is directly connected with antenna, thus is switching to passive antenna.
Active Receiving Antenna is by improving antenna gain thus improving the receiving sensitivity of receiving system, and Active Receiving Antenna receives to be had that signal band limits is wide, antenna size is little, lightweight, signal gain is high, need additional power source to power, may occur the features such as spurious signal when receiving large-signal.
Dumb antenna has that Received signal strength band limits is narrow, antenna size is large, signal gain is low, without features such as spurious signals.
There is the reception antenna that active antenna and passive antenna switch, achieve by relay the mutual switching carrying out active antenna and passive antenna in common antenna, make common antenna have active and passive antenna common feature simultaneously.Adopt passive mode when receiving in frequency range and there is large-signal, reduce the spurious signal that may occur; Adopt active mode when receiving in-band signal and being more weak, strengthen signal gain, be beneficial to discovery weak signal.
A kind of broad-band reception antenna with active antenna and passive antenna handoff functionality of the utility model, possesses the feature of Active Receiving Antenna and dumb antenna, integrate Active Receiving Antenna and dumb antenna, the reception of wireless signals work of Active Receiving Antenna and dumb antenna is completed by same reception antenna, the utility model can strengthen the dynamic range of Signal reception, easy to use, reducing the construction costs and maintenance cost, do not increase taking up room of equipment, reduce the volume of antenna.
Claims (2)
1. there is the broad-band reception antenna of active antenna and passive antenna handoff functionality, it is characterized in that: it comprises antenna radiation unit, integrated circuit, relay and transformer, the output of described antenna radiation unit inputs with the input of integrated circuit and of relay respectively and is connected, antenna radiation unit receives the aerial radiofrequency signal in sky and this radiofrequency signal is sent to integrated circuit and relay, integrated circuit radio frequency signal carries out amplification process, another of the output of integrated circuit and relay inputs and is connected, relay carries out the switching of active antenna and passive antenna, the output of relay is connected with the input of transformer, transformer exports radiofrequency signal.
2. the broad-band reception antenna with active antenna and passive antenna handoff functionality according to claim 1, is characterized in that: described integrated circuit comprises amplifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601822.0U CN204088581U (en) | 2014-10-17 | 2014-10-17 | There is the broad-band reception antenna of active antenna and passive antenna handoff functionality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420601822.0U CN204088581U (en) | 2014-10-17 | 2014-10-17 | There is the broad-band reception antenna of active antenna and passive antenna handoff functionality |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204088581U true CN204088581U (en) | 2015-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420601822.0U Active CN204088581U (en) | 2014-10-17 | 2014-10-17 | There is the broad-band reception antenna of active antenna and passive antenna handoff functionality |
Country Status (1)
| Country | Link |
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| CN (1) | CN204088581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269660A (en) * | 2014-10-17 | 2015-01-07 | 成都九华圆通科技发展有限公司 | Broadband receiving antenna with active antenna and passive antenna switching function |
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2014
- 2014-10-17 CN CN201420601822.0U patent/CN204088581U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104269660A (en) * | 2014-10-17 | 2015-01-07 | 成都九华圆通科技发展有限公司 | Broadband receiving antenna with active antenna and passive antenna switching function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |