Absorption type ultra-wideband high-power filter

Abstract

The utility model relates to the technical field of key devices of a microwave communication system, in particular to an absorption type ultra-wideband high-power filter, which comprises a shell, an input joint, an output joint, a T-shaped branch joint, a passband signal branch, an out-of-band signal branch and a ventilation assembly, an air outlet pipe is communicated with the shell and positioned on one side of the shell, a transverse plate is fixedly connected with the air outlet pipe, and the transverse plate is fixedly connected with the T-shaped branch joint. The micro motor is fixedly connected with the transverse plate, the rotating shaft is fixedly connected with the micro motor, the spiral blade is fixedly connected with the rotating shaft, the air inlet pipe communicates with the shell, and the micro motor on one side of the transverse plate is started through the control end, so that the rotating shaft drives the spiral blade to rotate, air in the shell is extracted, and cold air outside the shell is extracted into the shell; and the heat emitted by the mixed parts is discharged from the air outlet pipe, so that the heat in the shell is emitted in such a manner, the normal work of the parts in the shell is ensured, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of key components of microwave communication systems, in particular to an absorption type ultra-wideband high-power filter. Background Art

[0002] Harmonic absorption high-power filters are key components in the field of high-power radar and communications, and are widely used in airborne radar, navigation equipment, and electronic countermeasure systems. According to the information currently available at home and abroad, harmonic absorption high-power filters can only achieve narrow bandwidth under current technology, with a relative bandwidth of less than 20%, and a low passband frequency generally only below 2000MHz.

[0003] In the prior art, patent (CN209641794U) discloses an absorption type ultra-wideband high-power filter, including a shell, an input connector is arranged on one side of the shell, and an output connector is arranged on the other side. A T-shaped branch section and a passband signal branch for outputting a passband signal and an out-of-band signal branch for separating an out-of-band harmonic signal are arranged inside the shell. The T-shaped branch section is connected to the input connector, and the passband signal branch and the out-of-band signal branch are both connected to the T-shaped branch section. Through the T-shaped branch section 104, the passband signal branch 105 and the out-of-band signal branch 106, low loss in the frequency band range of 100MHz to 6000MHz is achieved, the relative bandwidth ratio of the transmission passband reaches 100%, the absorbed out-of-band harmonics cover the passband to achieve the function of twice the highest frequency, and meet the high power requirements, thereby greatly improving the linearity and reliability of the power amplifier; the extremely low loss and broadband characteristics reduce the distortion and power loss of the passband signal.

[0004] However, in the above-mentioned prior art, the internal parts of the housing will emit heat when working, and the heat cannot be dissipated inside, which will affect the normal work of the parts and reduce the use efficiency. Utility Model Content

[0005] The utility model aims to provide an absorption type ultra-wideband high-power filter, aiming to solve the problem that the internal parts of the shell will emit heat when working, and the heat cannot be emitted inside, which will affect the normal operation of the parts and reduce the use efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides an absorptive ultra-wideband high-power filter, comprising a shell, an input connector, an output connector, a T-shaped branch section, a passband signal branch, an out-of-band signal branch and a ventilation component, wherein the ventilation component comprises an air inlet pipe, an air outlet pipe, a cross plate, a micro motor, a rotating shaft and a spiral blade, the T-shaped branch section is fixedly connected to the shell and is located on the inner bottom wall of the shell, the passband signal branch and the out-of-band signal branch are both arranged on the inner bottom wall of the shell, the input connector is electrically connected to the T-shaped branch section and is located at one end of the T-shaped branch section, and the input connector passes through the shell, the passband signal branch and the out-of-band signal branch They are all electrically connected to the T-shaped branch node, the output connector is electrically connected to the passband signal branch and is located on one side of the passband signal branch, and the output connector passes through the shell, the air outlet pipe is connected to the shell and is located on one side of the shell, the cross plate is fixedly connected to the air outlet pipe and is located on the inner wall of the air outlet pipe, the micro motor is fixedly connected to the cross plate and is located on one side of the cross plate, the rotating shaft is fixedly connected to the micro motor and is located at the output end of the micro motor, the spiral blade is fixedly connected to the rotating shaft and is located on the outer side wall of the rotating shaft, and the air inlet pipe is connected to the shell and is located on one side of the shell.

[0007] Among them, the passband signal branch includes a low-pass filter and a band-stop filter, the low-pass filter is detachably connected to the shell and is located on the inner bottom wall of the shell, the band-stop filter is detachably connected to the shell and is located on the inner bottom wall of the shell, one end of the low-pass filter is electrically connected to the T-shaped branch node and is located on one side of the T-shaped branch node, the other end of the low-pass filter is electrically connected to the band-stop filter and is located on one side of the band-stop filter, the output connector is electrically connected to the band-stop filter and is located on the other side of the band-stop filter, and the output connector passes through the shell.

[0008] Among them, the out-of-band signal branch includes a high-pass filter and a high-power absorption load, one end of the high-pass filter is electrically connected to the T-shaped branch node and is located at the end of the T-shaped branch node away from the low-pass filter, and the other end of the high-pass filter is electrically connected to the high-power absorption load and is located on one side of the high-power absorption load.

[0009] Wherein, the absorption type ultra-wideband high-power filter further includes a filter component, and the filter component is arranged on the inner wall of the intake pipe.

[0010] Wherein, the filter assembly includes a support ring, a breathable filter and a breathable cover, the support ring is fixedly connected to the air inlet pipe and is located on the inner wall of the air inlet pipe, the breathable filter is slidably connected to the air inlet pipe and is located on the inner wall of the air inlet pipe, and the breathable filter is in contact with the support ring, and the breathable cover is detachably connected to the air inlet pipe and is located at one end of the air inlet pipe.

[0011] The utility model is an absorption type ultra-wideband high-power filter. The micro motor on one side of the horizontal plate is started by a control end, so that the rotating shaft drives the spiral blade to rotate, draws the air inside the shell, draws the cold air outside the shell into the shell, and then mixes the heat dissipated by the components and discharges it from the air outlet pipe. In this way, the heat inside the shell is dissipated, which ensures that the components inside the shell can work normally and reduces the expenditure of maintenance costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0013] Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model.

[0014] Figure 2 It is an overall cross-sectional view of the first embodiment of the utility model.

[0015] Figure 3 It is an overall structural diagram of the second embodiment of the utility model.

[0016] Figure 4 It is an overall cross-sectional view of the second embodiment of the utility model.

[0017] 101-shell, 102-input connector, 103-output connector, 104-T-type branch section, 105-passband signal branch, 106-out-of-band signal branch, 107-ventilation component, 108-inlet pipe, 109-outlet pipe, 110-cross plate, 111-micro motor, 112-rotating shaft, 113-spiral blade, 114-low-pass filter, 115-band-stop filter, 116-high-pass filter, 117-high-power absorption load, 201-filter component, 202-support ring, 203-breathable filter, 204-breathable cover. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] First embodiment:

[0020] See also Figure 1 and Figure 2 ,in, Figure 1 It is a schematic diagram of the overall structure of the first embodiment of the utility model. Figure 2 It is an overall cross-sectional view of the first embodiment of the utility model.

[0021] The utility model provides an absorption type ultra-wideband high-power filter, comprising a shell 101, an input connector 102, an output connector 103, a T-shaped branch section 104, a passband signal branch 105, an out-of-band signal branch 106 and a ventilation component 107, wherein the ventilation component 107 comprises an air inlet pipe 108, an air outlet pipe 109, a transverse plate 110, a micro motor 111, a rotating shaft 112 and a spiral blade 113, the passband signal branch 105 comprises a low-pass filter 114 and a band-stop filter 115, and the out-of-band signal branch 106 comprises a high-pass filter 116 and a high-power absorption load 117.

[0022] According to this specific embodiment, the T-shaped branch section 104 is fixedly connected to the shell 101 and is located on the inner bottom wall of the shell 101. The passband signal branch 105 and the out-of-band signal branch 106 are both arranged on the inner bottom wall of the shell 101. The input connector 102 is electrically connected to the T-shaped branch section 104 and is located at one end of the T-shaped branch section 104. The input connector 102 passes through the shell 101. The passband signal branch 105 and the out-of-band signal branch 106 are both electrically connected to the T-shaped branch section 104. The output connector 103 is electrically connected to the passband signal branch. 105 is electrically connected and is located on one side of the passband signal branch 105, and the output connector 103 passes through the shell 101, and through the T-shaped branch section 104, the passband signal branch 105 and the out-of-band signal branch 106, low loss in the frequency band range of 100MHz to 6000MHz is achieved, the relative bandwidth ratio of the transmission passband reaches 100%, the absorbed out-of-band harmonics cover the passband to achieve the function of twice the highest frequency, and meet the high power requirements, thereby greatly improving the linearity and reliability of the power amplifier; the extremely low loss and broadband characteristics reduce the distortion and power loss of the passband signal.

[0023] The outlet pipe 109 is connected to the housing 101 and is located on one side of the housing 101. The transverse plate 110 is fixedly connected to the outlet pipe 109 and is located on the inner side wall of the outlet pipe 109. The micro motor 111 is fixedly connected to the transverse plate 110 and is located on one side of the transverse plate 110. The rotating shaft 112 is fixedly connected to the micro motor 111 and is located at the output end of the micro motor 111. The spiral blade 113 is fixedly connected to the rotating shaft 112 and is located on the outer side wall of the rotating shaft 112. The air inlet pipe 10 8 is connected with the shell 101 and is located on one side of the shell 101. The micro motor 111 on one side of the horizontal plate 110 is started by the control end, so that the rotating shaft 112 drives the spiral blade 113 to rotate, and the air inside the shell 101 is extracted, and the cold air outside the shell 101 is extracted into the shell 101, and the heat of the mixed parts is discharged from the outlet pipe 109. In this way, the heat inside the shell 101 is dissipated, which ensures that the parts inside the shell 101 can work normally and reduces the maintenance cost.

[0024] Secondly, the low-pass filter 114 is detachably connected to the housing 101 and is located on the inner bottom wall of the housing 101. The band-stop filter 115 is detachably connected to the housing 101 and is located on the inner bottom wall of the housing 101. One end of the low-pass filter 114 is electrically connected to the T-shaped branch section 104 and is located on one side of the T-shaped branch section 104. The other end of the low-pass filter 114 is electrically connected to the band-stop filter 115 and is located on one side of the band-stop filter 115. The output connector 103 is detachably connected to the output connector 103. The band-stop filter 115 is electrically connected and located on the other side of the band-stop filter 115, and the output connector 103 passes through the shell 101 and is transmitted to the low-pass filter 114 through one end of the T-shaped branch section 104. After processing, the double frequency is suppressed and reflected back to the T-shaped branch section 104, and the passband signal is output from the low-pass filter 114 to the band-stop filter 115, which can suppress the near-end reflection back to the T-shaped branch section 104 and then be transmitted to the output connector 103 to ensure the integrity of the passband signal.

[0025] At the same time, one end of the high-pass filter 116 is electrically connected to the T-shaped branch section 104 and is located at the end of the T-shaped branch section 104 away from the low-pass filter 114. The other end of the high-pass filter 116 is electrically connected to the high-power absorption load 117 and is located on one side of the high-power absorption load 117. The out-of-band frequency signal transmitted from the input connector 102 and the out-of-band frequency signal reflected by the low-pass filter 114 and the band-stop filter 115 are transmitted to the high-pass filter 116 through one end of the T-shaped branch section 104, and the passband signal is isolated. The out-of-band frequency transmitted from the high-pass filter 116 absorbs power through the high-power absorption load 117.

[0026] When using the absorption type ultra-wideband high-power filter of the utility model, it is transmitted to the low-pass filter 114 through one end of the T-type branch section 104, and after processing, the double frequency suppression is reflected back to the T-type branch section 104, and the passband signal is output from the low-pass filter 114 to the band-stop filter 115, and the near-end suppression reflection can be returned to the T-type branch section 104, and then transmitted to the output connector 103. The out-of-band frequency signal reflected by the band-stop filter 115 is transmitted to the high-pass filter 116 through one end of the T-type branch section 104, and the passband signal is isolated. The out-of-band frequency transmitted from the high-pass filter 116 absorbs power through the high-power absorption load 117, and the micro motor 111 on one side of the horizontal plate 110 is started through the control end, so that the rotating shaft 112 drives the spiral blade 113 to rotate, and the air inside the shell 101 is extracted, and the cold air outside the shell 101 is drawn into the shell 101, and then the heat dissipated by the mixed components is discharged from the outlet pipe 109. In this way, the heat inside the shell 101 is dissipated, which ensures that the components inside the shell 101 can work normally and reduce the maintenance cost.

[0027] Second embodiment:

[0028] Based on the first embodiment, please refer to Figure 3 and Figure 4 ,in, Figure 3 It is a schematic diagram of the overall structure of the second embodiment of the utility model. Figure 4 It is an overall cross-sectional view of the second embodiment of the utility model.

[0029] The utility model provides an absorption type ultra-wideband high-power filter, which also includes a filter assembly 201. The filter assembly 201 includes a support ring 202, a breathable filter screen 203 and a breathable cover 204.

[0030] According to this specific embodiment, the filter assembly 201 is arranged on the inner wall of the air inlet pipe 108. The addition of the filter assembly 201 can prevent air impurities from entering the interior of the housing 101, thereby reducing the number of subsequent cleaning times.

[0031] Among them, the support ring 202 is fixedly connected to the air inlet pipe 108 and is located on the inner wall of the air inlet pipe 108, the breathable filter 203 is slidably connected to the air inlet pipe 108 and is located on the inner wall of the air inlet pipe 108, and the breathable filter 203 is in contact with the support ring 202, the breathable cover 204 is detachably connected to the air inlet pipe 108 and is located at one end of the air inlet pipe 108, and the movement of the breathable filter 203 is limited by the cooperation of the support ring 202 and the breathable cover 204 to facilitate subsequent cleaning by the staff, and the breathable filter 203 can filter the air, thereby reducing the entry of impurities, effectively reducing the workload of the staff, and the device has a simple structure and is easy to learn and operate.

[0032] When using an absorption-type ultra-wideband high-power filter of the utility model, the movement of the breathable filter 203 is limited by the cooperation of the support ring 202 and the breathable cover 204 to facilitate subsequent cleaning by the staff, and the breathable filter 203 can filter the air, thereby reducing the entry of impurities, effectively reducing the workload of the staff, and the device has a simple structure and is easy to learn and operate.

[0033] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. An absorptive ultra-wideband high-power filter, comprising a shell, an input connector, an output connector, a T-shaped branch section, a passband signal branch and an out-of-band signal branch, wherein the T-shaped branch section is fixedly connected to the shell and is located on the inner bottom wall of the shell, the passband signal branch and the out-of-band signal branch are both arranged on the inner bottom wall of the shell, the input connector is electrically connected to the T-shaped branch section and is located at one end of the T-shaped branch section, and the input connector passes through the shell, the passband signal branch and the out-of-band signal branch are both electrically connected to the T-shaped branch section, the output connector is electrically connected to the passband signal branch and is located on one side of the passband signal branch, and the output connector passes through the shell, characterized in that: Also included is a vent assembly; The ventilation assembly includes an air inlet pipe, an air outlet pipe, a transverse plate, a micro motor, a rotating shaft and a spiral blade. The air outlet pipe is connected to the shell and is located on one side of the shell. The transverse plate is fixedly connected to the air outlet pipe and is located on the inner wall of the air outlet pipe. The micro motor is fixedly connected to the transverse plate and is located on one side of the transverse plate. The rotating shaft is fixedly connected to the micro motor and is located at the output end of the micro motor. The spiral blade is fixedly connected to the rotating shaft and is located on the outer wall of the rotating shaft. The air inlet pipe is connected to the shell and is located on one side of the shell.

2. The absorption type ultra-wideband high-power filter according to claim 1, characterized in that: The passband signal branch includes a low-pass filter and a band-stop filter, the low-pass filter is detachably connected to the shell and is located on the inner bottom wall of the shell, the band-stop filter is detachably connected to the shell and is located on the inner bottom wall of the shell, one end of the low-pass filter is electrically connected to the T-shaped branch node and is located on one side of the T-shaped branch node, the other end of the low-pass filter is electrically connected to the band-stop filter and is located on one side of the band-stop filter, the output connector is electrically connected to the band-stop filter and is located on the other side of the band-stop filter, and the output connector passes through the shell.

3. The absorption type ultra-wideband high-power filter according to claim 2, characterized in that: The out-of-band signal branch includes a high-pass filter and a high-power absorbing load, one end of the high-pass filter is electrically connected to the T-shaped branch node and is located at the end of the T-shaped branch node away from the low-pass filter, and the other end of the high-pass filter is electrically connected to the high-power absorbing load and is located on one side of the high-power absorbing load.

4. The absorption type ultra-wideband high-power filter according to claim 1, characterized in that: The absorption type ultra-wideband high-power filter further comprises a filter assembly, and the filter assembly is arranged on the inner side wall of the air intake pipe.

5. The absorption type ultra-wideband high-power filter according to claim 4, characterized in that: The filter assembly includes a support ring, a breathable filter and a breathable cover, the support ring is fixedly connected to the air inlet pipe and is located on the inner wall of the air inlet pipe, the breathable filter is slidably connected to the air inlet pipe and is located on the inner wall of the air inlet pipe, and the breathable filter is in contact with the support ring, and the breathable cover is detachably connected to the air inlet pipe and is located at one end of the air inlet pipe.

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