CN203661046U - Broadband transmitter supporting handheld air control station - Google Patents
Broadband transmitter supporting handheld air control station Download PDFInfo
- Publication number
- CN203661046U CN203661046U CN201420029867.5U CN201420029867U CN203661046U CN 203661046 U CN203661046 U CN 203661046U CN 201420029867 U CN201420029867 U CN 201420029867U CN 203661046 U CN203661046 U CN 203661046U
- Authority
- CN
- China
- Prior art keywords
- switch
- power
- control circuit
- gain control
- directional coupler
- Prior art date
- 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 - Fee Related
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Abstract
The utility model discloses a broadband transmitter supporting a handheld air control station. The broadband transmitter includes an antenna module, a directional coupler, a first U/V switch, a second U/V switch, a power amplifying unit, a gain control circuit and an amplitude modulation module. The power amplifying unit includes a power combiner, a power distributor and a plurality of power amplifiers. An input terminal of the amplitude modulation module is connected with an output terminal of the directional coupler. An output terminal of the amplitude modulation module is connected with an input terminal of the gain control circuit. The gain control circuit is connected with the power distributor. The power distributor is connected with the power combiner through the power amplifiers. The power combiner is connected with the second U/V switch. The second U/V switch is connected with the first U/V switch through a U-segment filter and a V-segment filter. The first U/V switch is connected with the directional coupler connected with the antenna module. The broadband transmitter is provided with the gain control circuit and supports double-frequency-band operation, and is high in reliability and precision.
Description
Technical field
The utility model relates to a kind of broadband transmitter, particularly a kind of wide-band transmitter of supporting hand-hold type aeronautical station.
Background technology
In recent years, along with the fast development of wireless telecommunications, the needs that original radiofrequency signal receives, emitter has been difficult to meet modern communication.Particularly in the last few years, " joint tactical radio system " research plan that the U.S. releases in tactical communication field, the final purpose of this plan is a general single programmable radio platform system of development, this system radio station will cover the frequency range of 2MHz～2GHz, can be on multiple channels receiving and transmitting voice, data and vision signal simultaneously.Radio station series comprises hand-hold type, backpack, vehicular, machine-carried type and the various ways such as fixed.But at home, these technology are still blank out.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of wide-band transmitter that gain control circuit, band limits are wide, support the support hand-hold type aeronautical station of two-band work that is provided with is provided.
The purpose of this utility model is achieved through the following technical solutions: a kind of wideband transmitter of supporting hand-hold type aeronautical station, it comprises Anneta module, directional coupler, the one U/V switch, the 2nd U/V switch, power amplification unit, gain control circuit, crystal oscillator and amplitude modulation module, described power amplification unit comprises power combiner, power divider and multiple power amplifier, the described input of amplitude modulation module and the output of directional coupler are connected, the output of amplitude modulation module is connected with the input of gain control circuit, gain control circuit is connected with power divider, power divider is connected with power combiner by multiple power amplifiers, power combiner is connected with the 2nd U/V switch, the 2nd U/V switch is connected with a U/V switch by U section filter and V section filter respectively, the one U/V switch is connected with directional coupler, directional coupler is connected with Anneta module.
Described gain control circuit is also connected with crystal oscillator.
The wide-band scope that it comprises is 108MHz～173.975MHz.
It also comprises that wide-band scope is 225～399.975MHz.
It includes lifesaving frequency 121.5MHz and lifesaving frequency 243MHz.
The utlity model has following advantage:
1, be provided with gain control circuit, can increase the power gain of special frequency channel;
2, be provided with multiple power amplifiers, amplification effect is obvious;
3, high conformity, adopts High Density Integration, reduces the deviation that device discreteness is brought;
4, band limits is wide, can support two-band work, and reliability is strong, and precision is high.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
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, a kind of wideband transmitter of supporting hand-hold type aeronautical station, it comprises Anneta module, directional coupler, the one U/V switch, the 2nd U/V switch, power amplification unit, gain control circuit, crystal oscillator and amplitude modulation module, described power amplification unit comprises power combiner, power divider and multiple power amplifier, the described input of amplitude modulation module and the output of directional coupler are connected, the output of amplitude modulation module is connected with the input of gain control circuit, gain control circuit is connected with power divider, power divider is connected with power combiner by multiple power amplifiers, power combiner is connected with the 2nd U/V switch, the 2nd U/V switch is connected with a U/V switch by U section filter and V section filter respectively, the one U/V switch is connected with directional coupler, directional coupler is connected with Anneta module.
Described gain control circuit is also connected with crystal oscillator.
The wide-band scope that it comprises is 108MHz～173.975MHz.
It also comprises that wide-band scope is 225～399.975MHz.
It includes lifesaving frequency 121.5MHz and lifesaving frequency 243MHz.
Claims (5)
1. support the wideband transmitter of hand-hold type aeronautical station for one kind, it is characterized in that: it comprises Anneta module, directional coupler, the one U/V switch, the 2nd U/V switch, power amplification unit, gain control circuit and amplitude modulation module, described power amplification unit comprises power combiner, power divider and multiple power amplifier, the described input of amplitude modulation module and the output of directional coupler are connected, the output of amplitude modulation module is connected with the input of gain control circuit, gain control circuit is connected with power divider, power divider is connected with power combiner by multiple power amplifiers, power combiner is connected with the 2nd U/V switch, the 2nd U/V switch is connected with a U/V switch by U section filter and V section filter respectively, the one U/V switch is connected with directional coupler, directional coupler is connected with Anneta module.
2. a kind of wideband transmitter of supporting hand-hold type aeronautical station according to claim 1, is characterized in that: described gain control circuit is also connected with crystal oscillator.
3. a kind of broadband receiver of supporting hand-hold type aeronautical station according to claim 1, is characterized in that: the wide-band scope that it comprises is 108MHz～173.975MHz.
4. a kind of broadband receiver of supporting hand-hold type aeronautical station according to claim 1, is characterized in that: it also comprises that wide-band scope is 225～399.975MHz.
5. a kind of wideband transmitter of supporting hand-hold type aeronautical station according to claim 1, is characterized in that: it includes lifesaving frequency 121.5MHz and lifesaving frequency 243MHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029867.5U CN203661046U (en) | 2014-01-17 | 2014-01-17 | Broadband transmitter supporting handheld air control station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420029867.5U CN203661046U (en) | 2014-01-17 | 2014-01-17 | Broadband transmitter supporting handheld air control station |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203661046U true CN203661046U (en) | 2014-06-18 |
Family
ID=50927394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420029867.5U Expired - Fee Related CN203661046U (en) | 2014-01-17 | 2014-01-17 | Broadband transmitter supporting handheld air control station |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203661046U (en) |
-
2014
- 2014-01-17 CN CN201420029867.5U patent/CN203661046U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140618 Termination date: 20150117 |
|
| EXPY | Termination of patent right or utility model |