CN205028991U - Transmitter radio frequency output device - Google Patents
Transmitter radio frequency output device Download PDFInfo
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- CN205028991U CN205028991U CN201520669591.1U CN201520669591U CN205028991U CN 205028991 U CN205028991 U CN 205028991U CN 201520669591 U CN201520669591 U CN 201520669591U CN 205028991 U CN205028991 U CN 205028991U
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- waveguide
- radio frequency
- isolator
- output device
- frequency output
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Abstract
The utility model discloses a transmitter radio frequency output device, transmitter casing inboard is equipped with and holds transmitter radio frequency output device's cavity, including power amplifier module, with waveguide isolator that power amplifier module connects, with the waveguide isolator is kept away from the waveguide sealed window of one side connection of power amplifier module, the waveguide sealed window keep away from one side of waveguide isolator with the lateral wall of cavity is connected, the waveguide isolator is equipped with first waveguide chamber and centers on the ripples portion of inhaling that first waveguide chamber set up, waveguide sealed window be equipped with with the second waveguide chamber that first waveguide chamber corresponds, second waveguide intracavity is equipped with the sealing. Adopt waveguide sealed window to replace traditional straight waveguide, it is waterproof dustproof to carry out waveguide port, has improved equipment reliability and environmental suitability. Simultaneously, the atress of waveguide isolator under the vibration condition has been reduced effectively to the structure of waveguide isolator is compacter, has reduced the space area occupied.
Description
Technical field
The utility model relates to radio frequency output device, especially relates to a kind of transmitter radio frequency output device.
Background technology
Along with communication technology of satellite, particularly millimeter wave frequency band (comprising Ku, Ka, EHF frequency range) communication technology of satellite is in the extensive utilization in the field such as military, civilian, and the demand as the millimeter wave frequency band radio-frequency module (comprising transmitter, receiver or integrated transceiver) of key modules in satellite communication earth station also increases thereupon day by day.Traditional its structure of its radio-frequency (RF) output end of millimeter wave frequency band transmitter is: the external waveguide isolator of power amplifier module output, waveguide isolator is connected with straight wave guide, transmitter housing is processed waveguide mouth to be connected with extraneous output as equipment radio frequency output port, straight wave guide is connected with housing waveguide mouth.Conventional its isolation end load of waveguide isolator adopts heat spreader structures, it easily damages because stress is comparatively large under vibrating conditions, and its space availability ratio is lower, increase taking up room of transmitter complete machine, in addition, its output waveguide mouth does not have water proof and dust proof characteristic, easily causes transmitter to lose efficacy.
Utility model content
Based on this, the utility model is the defect overcoming prior art, provides a kind of transmitter radio frequency output device, which effectively reduces the stress that waveguide isolator bears under vibrating conditions, and make the structure of waveguide isolator compacter, decrease dimensional footprint.
Its technical scheme is as follows:
A kind of transmitter radio frequency output device, transmitter case inside is provided with the cavity holding described transmitter radio frequency output device, comprise power amplifier module, the waveguide isolator be connected with described power amplifier module, the hermetic window of waveguide be connected away from the side of described power amplifier module with described waveguide isolator, described hermetic window of waveguide is connected with the sidewall of described cavity away from the side of described waveguide isolator, the suction ripple portion that described waveguide isolator is provided with first wave guide cavity and arranges around described first wave guide cavity, described hermetic window of waveguide is provided with the Second Wave guide cavity corresponding with described first wave guide cavity, sealing is provided with in described Second Wave guide cavity.
Wherein in an embodiment, the side that described hermetic window of waveguide is relative with described sidewall is provided with the first fixing hole, and transmitter housing is provided with first through hole corresponding with described first fixing hole.
Wherein in an embodiment, described hermetic window of waveguide is provided with the waveguide mouth be communicated with described Second Wave guide cavity, the side that described hermetic window of waveguide is relative with described sidewall is also provided with the second fixing hole, described transmitter housing exterior walls is arranged with the opening being communicated with described cavity, and described second fixing hole, described waveguide mouth and described opening are oppositely arranged.
Wherein in an embodiment, described first fixing hole and described second fixing hole are blind hole.
Wherein in an embodiment, be also provided with the first conductive rubber ring arranged around described waveguide mouth between described hermetic window of waveguide and described sidewall, described hermetic window of waveguide is arranged with the first mounting groove for installing described first conductive rubber ring.
Wherein in an embodiment, between the bottom of described waveguide isolator and described cavity, be provided with radiating part.
Wherein in an embodiment, described sealing is quartz thin film.
Wherein in an embodiment, described waveguide isolator and described hermetic window of waveguide are block structure.
The beneficial effects of the utility model are:
There is provided a kind of transmitter radio frequency output device, it adopts hermetic window of waveguide to replace traditional straight wave guide, establishes sealing in the Second Wave guide cavity of hermetic window of waveguide, carries out waveguide mouth water proof and dust proof, improves equipment dependability and environmental suitability.Due to traditional waveguide isolator isolation end load radiating block, easily damage because stress is comparatively large under vibrating conditions.Stressed for reducing waveguide isolator, increase waveguide isolator useful life, the utility model waveguide isolator is provided with the suction ripple portion arranged around described first wave guide cavity, inhale ripple portion electromagnetic wave absorption the evolution of heat, by the shell distribute heat of waveguide isolator, effectively reduce waveguide isolator under vibrating conditions stressed, simultaneously, which reduce traditional radiating block structure, make the structure of waveguide isolator compacter, decrease dimensional footprint.
The sidewall side of hermetic window of waveguide relative transmitter cavity is provided with the first fixing hole, transmitter housing is provided with first through hole corresponding with the first fixing hole, compared to traditional screw at transmitter case inside, be difficult to processing and assembling, the utility model through hole is easily processed, and only need mounting screw outside transmitter housing to be used for connecting hermetic window of waveguide, make described transmitter radio frequency output device easy accessibility, reduce equipment assembly difficulty, improve equipment maintenanceability.
Hermetic window of waveguide is provided with the waveguide mouth be communicated with Second Wave guide cavity and the second fixing hole be connected with extraneous antenna feed or waveguide coaxial converter etc., because transmitter housing is provided with opening, waveguide mouth and the second fixing hole and opening are oppositely arranged, and be communicated with described transmitter hull outside, thus hermetic window of waveguide can directly be connected with extraneous output as equipment radio frequency output port, transmitter housing need not be reprocessed the waveguide mouth that required precision is high, only need roughing opening be of moderate size, make waveguide mouth and the second fixing hole and ft connection can realize radio frequency to export, thus reduce transmitter housing difficulty of processing, decrease cost of manufacture.
Described first fixing hole and described second fixing hole are blind hole, add water proof and dust proof characteristic of the present utility model.
The first conductive rubber ring is also provided with between hermetic window of waveguide and sidewall, first conductive rubber ring is arranged around waveguide mouth, first conductive rubber ring fills up the space between the sidewall of hermetic window of waveguide and described cavity, realize compact siro spinning technology between hermetic window of waveguide and sidewall, realize cavity inner waterproofing further dust-proof.
Traditional waveguide isolator is when total reflection, its waveguide load temperature is too high, long-time waveguide isolator in this case can damage, radiating part is had additional between above-mentioned situation the utility model waveguide isolator and the bottom of described cavity, radiating part contacts with bottom and dispels the heat, and bears high-power reflected signal ability for a long time to improve waveguide isolator.
Described sealing is quartz thin film, and quartz thin film has good sealing property, and its structural stability is good, not easily broken, can ensure that hermetic window of waveguide has good sealing property and signal transmission performance.
Described waveguide isolator and described hermetic window of waveguide are block structure, make the utility model compact conformation, space availability ratio high, realize device miniaturization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the transmitter described in the utility model embodiment;
Fig. 2 is the structural representation of the waveguide isolator described in the utility model embodiment;
Fig. 3 is the structural representation of the hermetic window of waveguide described in the utility model embodiment;
Fig. 4 is the partial structurtes schematic diagram of the transmitter housing described in the utility model embodiment;
The assembling schematic diagram that Fig. 5 is the transmitter housing described in the utility model embodiment and hermetic window of waveguide.
Description of reference numerals:
10, transmitter housing, 11, cavity, 12, sidewall, 13, the first through hole, 14, opening, 20, power amplifier module, 30, waveguide isolator, 31, first wave guide cavity, the 32, second through hole, 33, the 3rd fixing hole, 40, hermetic window of waveguide, 41, Second Wave guide cavity, 42, waveguide mouth, the 43, first fixing hole, the 44, second fixing hole, 45, third through-hole, the 46, first conductive rubber ring, the 47, second conductive rubber ring.
Embodiment
Below embodiment of the present utility model is described in detail:
As shown in Figure 1, a kind of transmitter radio frequency output device, the cavity 11 holding described transmitter radio frequency output device is provided with inside transmitter housing 10, the hermetic window of waveguide 40 that described transmitter radio frequency output device comprises power amplifier module 20, the waveguide isolator 30 be connected with power amplifier module 20 and is connected away from the side of power amplifier module 20 with waveguide isolator 30, hermetic window of waveguide 40 is connected with the sidewall 12 of cavity 11 away from the side of waveguide isolator 30.As shown in Figure 2, the suction ripple portion (accompanying drawing does not identify) that waveguide isolator 30 is provided with first wave guide cavity 31 and arranges around first wave guide cavity 31, due to traditional waveguide isolator 30 isolation end load radiating block, easily damage because stress is comparatively large under vibrating conditions, stressed for reducing waveguide isolator 30, increase the useful life of waveguide isolator 30, the utility model is provided with around first wave guide cavity 31 inhales ripple portion, inhale ripple portion electromagnetic wave absorption and the evolution of heat, by the shell distribute heat of waveguide isolator 30, effectively reduce waveguide isolator 30 under vibrating conditions stressed, simultaneously, which reduce traditional radiating block structure, make the structure of waveguide isolator 30 compacter, decrease dimensional footprint.As shown in Figure 3, hermetic window of waveguide 40 is provided with the Second Wave guide cavity 41 corresponding with first wave guide cavity 31, is provided with sealing (accompanying drawing does not identify) in Second Wave guide cavity 41, carries out waveguide mouth 42 water proof and dust proof.
Be provided with radiating part (accompanying drawing does not identify) between the bottom of waveguide isolator 30 and cavity 11, radiating part dispels the heat, to improve the ability that waveguide isolator 30 bears high-power reflected signal for a long time with contacting bottom cavity 11.
In the present embodiment, waveguide isolator 30 and hermetic window of waveguide 40 are block structure, make the utility model compact conformation, space availability ratio high, realize device miniaturization.
Described sealing can be the sealing medium such as quartz thin film, polytetrafluoroethylene film, the present embodiment adopts quartz thin film, and quartz thin film has good sealing property, and its structural stability is good, not easily broken, can ensure that hermetic window of waveguide 40 has good sealing property and signal transmission performance.Inhaling ripple portion described in the present embodiment is absorbing material.
As shown in Figure 3-4, the side that hermetic window of waveguide 40 is relative with sidewall 12 is provided with the first fixing hole 43, for being connected with transmitter housing 10, correspondingly transmitter housing 10 is provided with first through hole 13 corresponding with the first fixing hole 43, compared to traditional screw inside transmitter housing 10, be difficult to processing and assembling, the utility model through hole is easily processed, and only need mounting screw outside transmitter housing 10 to be used for connecting hermetic window of waveguide 40, make the utility model easy accessibility, reduce equipment assembly difficulty, improve equipment maintenanceability.
As shown in Figure 5, hermetic window of waveguide 40 is provided with the waveguide mouth 42 be communicated with described Second Wave guide cavity 41, the side that hermetic window of waveguide 40 is relative with sidewall 12 is also provided with the second fixing hole 44, second fixing hole 44 is for being connected with extraneous antenna feed or waveguide coaxial converter etc., transmitter housing 10 is arranged with and is communicated with opening 14, second fixing hole 44 of cavity 11 and waveguide mouth 42 is oppositely arranged with opening 14.Thus hermetic window of waveguide 40 can directly be connected with extraneous output as equipment radio frequency output port, transmitter housing 10 need not be reprocessed the waveguide mouth 42 that required precision is high, only need the opening 14 that roughing one is of moderate size, make waveguide mouth 42 and the second fixing hole 44 can realize radio frequency with ft connection to export, thus reduce the difficulty of processing of housing 10, decrease cost of manufacture.
In the present embodiment, described first fixing hole 43 and described second fixing hole 44 are blind hole, add the water proof and dust proof characteristic of cavity 11.
As shown in Figure 3, be also provided with the first conductive rubber ring 46 arranged around waveguide mouth 42 between hermetic window of waveguide 40 and sidewall 12, hermetic window of waveguide 40 is arranged with the first mounting groove (accompanying drawing does not identify) for installing the first conductive rubber ring 46.First conductive rubber ring 46 fills up the space between hermetic window of waveguide 40 and sidewall 12, realizes compact siro spinning technology between hermetic window of waveguide 40 and sidewall 12, realizes cavity 11 inner waterproofing further dust-proof.Hermetic window of waveguide 40 is also provided with the second mounting groove (accompanying drawing does not identify), second mounting groove is provided with the second conductive rubber ring 47, for realizing compact siro spinning technology between hermetic window of waveguide 40 and external device, connect closely between each waveguide elements of the utility model, not easily there is electromagnetic interference, reduce electromagnetic exposure, in case radiofrequency signal forms feedback loop, cause system instability or cause the penalty such as standing wave, Insertion Loss phenomenon.
As Figure 2-3, waveguide isolator 30 is provided with the second through hole 32 be connected with power amplifier module 20 and the 3rd fixing hole 33 be connected with hermetic window of waveguide 40, hermetic window of waveguide 40 is provided with third through-hole 45, first fixing hole 43, second through hole 32 corresponding with the 3rd fixing hole 33 and the power amplifier module screw hole corresponding with the second through hole 32 is all corresponding consistent with standard Type B flange fixing hole.During installation, first waveguide isolator 30 is connected with the radio-frequency (RF) output end of power amplifier module 20 by the second through hole 32, by third through-hole 45, hermetic window of waveguide 40 is connected with waveguide isolator 30 again, afterwards, again power amplifier module 20, waveguide isolator 30, hermetic window of waveguide 40 are integrally put into described cavity, by the first through hole 13 on transmitter housing 10, hermetic window of waveguide 40 is connected with transmitter housing 10.The utility model power amplifier module 20, waveguide isolator 30, hermetic window of waveguide 40 are integrally, easy disassembly, test according to maintainability, tear open, change power amplifier module 20 time and only need 10min, and traditional its dismounting required time of transmitter radio frequency output device is 30-40min, thus the present invention significantly reduces equipment assembly difficulty, improves equipment maintenanceability.
According to test, waveguide mouth 42 place is closed by metallic gasket, make to transmit when being in total reflection state, this transmitter can be launched by rated power for a long time and not damage power amplifier module 20, waveguide isolator 30 temperature rise being absorbed reflected signal by temperature sensor measurement is about 25 DEG C, and in same test operation, the temperature rise of waveguide isolator 30 reaches 40 DEG C, visible, the utility model can effectively protect because misoperation causes transmitter radio frequency output mistermination to the damage of power amplifier module 20.In addition, the utility model is surveyed through waterproof, finds that transmitter still can normally use after 1.5m floods 1h under water.
The utility model structure is simple, volume is miniaturized, performance is good and stable, reliable, and waveguide isolator 30 built-in suction ripple portion, utilizes own enclosure dispel the heat, effectively reduces waveguide isolator 30 under vibrating conditions stressed, prevents damage.It adopts hermetic window of waveguide 40 to replace traditional straight wave guide, has water proof and dust proof characteristic, improves equipment dependability and environmental suitability.The significantly reduction of noise factor can be realized.
Each technical characteristic of the above embodiment can combine arbitrarily, for making description succinct, the all possible combination of each technical characteristic in above-described embodiment is not all described, but, as long as the combination of these technical characteristics does not exist contradiction, be all considered to be the scope that this specification is recorded.
The above embodiment only have expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to utility model patent scope.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. a transmitter radio frequency output device, transmitter case inside is provided with the cavity holding described transmitter radio frequency output device, it is characterized in that, comprise power amplifier module, the waveguide isolator be connected with described power amplifier module, the hermetic window of waveguide be connected away from the side of described power amplifier module with described waveguide isolator, described hermetic window of waveguide is connected with the sidewall of described cavity away from the side of described waveguide isolator, the suction ripple portion that described waveguide isolator is provided with first wave guide cavity and arranges around described first wave guide cavity, described hermetic window of waveguide is provided with the Second Wave guide cavity corresponding with described first wave guide cavity, sealing is provided with in described Second Wave guide cavity.
2. transmitter radio frequency output device according to claim 1, it is characterized in that, the side that described hermetic window of waveguide is relative with described sidewall is provided with the first fixing hole, and transmitter housing is provided with first through hole corresponding with described first fixing hole.
3. transmitter radio frequency output device according to claim 2, it is characterized in that, described hermetic window of waveguide is provided with the waveguide mouth be communicated with described Second Wave guide cavity, the side that described hermetic window of waveguide is relative with described sidewall is also provided with the second fixing hole, described transmitter housing exterior walls is arranged with the opening being communicated with described cavity, and described second fixing hole, described waveguide mouth and described opening are oppositely arranged.
4. transmitter radio frequency output device according to claim 3, is characterized in that, described first fixing hole and described second fixing hole are blind hole.
5. transmitter radio frequency output device according to claim 3, it is characterized in that, also be provided with the first conductive rubber ring arranged around described waveguide mouth between described hermetic window of waveguide and described sidewall, described hermetic window of waveguide is arranged with the first mounting groove for installing described first conductive rubber ring.
6. transmitter radio frequency output device according to claim 1, is characterized in that, be provided with radiating part between the bottom of described waveguide isolator and described cavity.
7. transmitter radio frequency output device according to claim 1, is characterized in that, described sealing is quartz thin film.
8. the transmitter radio frequency output device according to any one of claim 1 to 7, is characterized in that, described waveguide isolator and described hermetic window of waveguide are block structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669591.1U CN205028991U (en) | 2015-08-31 | 2015-08-31 | Transmitter radio frequency output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520669591.1U CN205028991U (en) | 2015-08-31 | 2015-08-31 | Transmitter radio frequency output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205028991U true CN205028991U (en) | 2016-02-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520669591.1U Active CN205028991U (en) | 2015-08-31 | 2015-08-31 | Transmitter radio frequency output device |
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| CN (1) | CN205028991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630993A (en) * | 2020-05-08 | 2021-11-09 | 广州海格通信集团股份有限公司 | Case, power amplifier and communication equipment |
-
2015
- 2015-08-31 CN CN201520669591.1U patent/CN205028991U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113630993A (en) * | 2020-05-08 | 2021-11-09 | 广州海格通信集团股份有限公司 | Case, power amplifier and communication equipment |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |