Wireless device
By using waveguides with the same shape and orientation for different polarized waves and removable coaxial attachments, the wireless device addresses space and heat dissipation issues, enabling compact and efficient component arrangement.
Patent Information
- Application Number
- JP2021042574
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-03-16
- Publication Date
- 2025-01-15
- Estimated Expiration
- 2041-03-16
AI Technical Summary
Existing wireless devices require separate components for orthogonal polarized waves, leading to increased space requirements and uneven heat dissipation due to different orientations and shapes of components.
The use of waveguides with the same shape and orientation for different polarized waves, along with removable coaxial waveguide conversion attachments, allows components to be arranged in the same direction and facilitates uniform heat dissipation.
This configuration reduces the number of component types, allows for compact arrangement, and ensures uniform heat dissipation, thereby optimizing space and efficiency.
Smart Images

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Abstract
Description
[Technical field]
[0001] The present invention relates to a technique for processing radio waves for each polarization. [Background technology]
[0002] In recent years, in satellite communications, the number of onboard devices such as LNAs (Low Noise Amplifiers) per satellite is increasing with the increase in communication capacity of HTS (High Throughput Satellites). As the number of onboard devices increases, there is a demand for efficient and space-saving arrangement of onboard devices, as well as simplification of the configuration of onboard devices and uniformity of their characteristics.
[0003] In a satellite, radio waves received by an antenna may be split into two mutually orthogonal polarized waves by an orthogonal polarization separator (OMT: Ortho-Mode Transducer) before being input to an LNA. In this case, the LNA is often rotated according to the direction of the polarized waves and connected to the OMT.
[0004] FIG. 5 is a perspective view showing an example of the configuration of a radio device referred to in the present invention. In FIG. 5, in order to make the drawing easier to understand, the connection between the components is removed. As shown in FIG. 5, a radio device 608 referred to in the present invention includes an antenna feeder 400, an OMT 208, an LNA 381 for vertical connection, and an LNA 382 for horizontal connection. The radio device 608 is, for example, a radio receiving device or a radio transmitting device. The OMT 208 includes a first waveguide 218 for vertical connection and a second waveguide 228 for horizontal connection. Here, the first waveguide 218 for vertical connection and the second waveguide 228 for horizontal connection have cross-sectional shapes rotated by 90 degrees from each other with respect to the traveling direction of the radio wave. As a result, if the LNA 381 for vertical connection and the LNA 382 for horizontal connection have the same shape, they are arranged in orientations rotated by 90 degrees from each other with respect to the traveling direction of the radio wave (Y direction in FIG. 5).
[0005] For example, the power supply section of the parabolic antenna disclosed in Patent Document 1 includes a horn antenna, a polarizer, a polarization splitter (OMT), a vertical polarization converter, and a horizontal polarization converter. The horn antenna receives linearly polarized waves reflected by a parabolic reflector and propagates the waves. The polarizer is connected to the horn antenna and is capable of switching the polarization plane of the linearly polarized waves. The polarization splitter splits the linearly polarized waves output from the polarizer into a vertical polarization component and a horizontal polarization component. The vertical polarization converter converts the frequency of the vertical polarization component separated by the polarization splitter. The horizontal polarization converter converts the frequency of the horizontal polarization component separated by the polarization splitter. A separation plate extending in the horizontal direction is built into the circular waveguide section of the polarization splitter. The horizontal polarization component is reflected by the separation plate and guided to the horizontal polarization converter via a rectangular waveguide for horizontal polarization. The vertically polarized component passes through the separation plate and is guided to the vertical polarization converter via the vertical polarization rectangular waveguide. Here, the horizontal polarization rectangular waveguide and the vertical polarization rectangular waveguide have cross-sectional shapes rotated 90 degrees from each other with respect to the direction of propagation of the radio waves. As a result, if the horizontal polarization converter and the vertical polarization converter have the same shape, they are arranged in orientations rotated 90 degrees from each other with respect to the direction of propagation of the radio waves.
[0006] FIG. 6 is a perspective view showing an example of the configuration of another radio device referred to in the present invention. In FIG. 6, in order to make the drawing easier to understand, the connection between the components is removed. As shown in FIG. 6, the radio device 609 referred to in the present invention further includes a waveguide 191 and a waveguide 192 (twisted waveguide) in addition to the configuration of the radio device 608. The twisted waveguide is a waveguide that rotates the polarization plane (90 degrees in the example of FIG. 6). The LNA 391 for vertical connection and the LNA 392 for horizontal connection have the same shape. In the radio device 609, the twisted waveguide causes the LNA 391 for vertical connection and the LNA 392 for horizontal connection to be arranged in the same direction. [Prior art documents] [Patent documents]
[0007] [Patent Document 1] Japanese Patent Application Publication No. 09-312519 Summary of the Invention [Problem to be solved by the invention]
[0008] The directions of the two orthogonal linearly polarized waves differ by 90 degrees. The input terminals of the components (LNAs 381 and 382) of the wireless device 608 referred to in this invention only support linearly polarized waves in one direction. Therefore, if the same type of components (LNAs 381 and 382) were to be used to handle each of the two orthogonal polarized waves, the components had to be arranged with their orientations changed by 90 degrees from each other.
[0009] As a result, for example, when multiple components of the same shape (such as LNAs) are arranged in different orientations, there is a problem that the space required to accommodate the components (for example, the space forming a single rectangular parallelepiped) may increase compared to when the components are arranged in the same orientation.
[0010] Furthermore, for example, when heat dissipation from the vertical connection LNA 381 and the horizontal connection LNA 382 is performed by a single plate-shaped heat pipe (not shown), the LNAs 381 and 382 contact the heat pipe at surfaces with different shapes. As a result, the wireless device 608 has a problem in that the heat dissipation from the LNAs 381 and 382 is uneven.
[0011] In order to arrange multiple components (such as LNAs) in the same direction, there was a problem that new types of components had to be added, such as the waveguide and twisted waveguide of the radio device 609 referred to in the present invention.
[0012] The present invention has been made in consideration of the above-mentioned problems, and has as its main object to arrange components for each polarization, which have the same shape in cross section perpendicular to the propagation direction of the polarization, in the same orientation, while suppressing the increase in the number of types of components in a device that processes radio waves for each polarization. [Means for solving the problem]
[0013] In one aspect of the present invention, a wireless device includes a first waveguide that propagates a first polarized wave, a second waveguide that propagates a second polarized wave that has an angle different from the first polarized wave, two coaxial-waveguide conversion attachments having the same shape, and two components, each of which includes a coaxial terminal and has the same shape and orientation in a cross section perpendicular to the propagation direction of the first polarized wave and the second polarized wave, each of the coaxial-waveguide conversion attachments including a third waveguide that converts either the first polarized wave or the second polarized wave between a form that can be propagated through an axially symmetric coaxial cable, and one end of the third waveguide is connected to either the first waveguide or the second waveguide so as to be detachably attached to either the first waveguide or the second waveguide, and is detachably connected to the component so that the other end of the third waveguide on the coaxial terminal side is connected to the coaxial terminal when connected to the component. Effect of the Invention
[0014] According to the present invention, in a device that processes radio waves for each polarization, it is possible to suppress the increase in the number of types of components, while enabling components for each polarization having the same shape in cross section perpendicular to the propagation direction of the polarization to be arranged in the same orientation. [Brief description of the drawings]
[0015] [Figure 1] 1 is a perspective view showing an example of a configuration of a wireless device according to a first embodiment of the present invention. [Diagram 2] 3A to 3C are two-plan views showing an example of the configuration of a third waveguide in the first embodiment of the present invention. [Diagram 3] FIG. 11 is a perspective view showing an example of the configuration of a wireless device according to a second embodiment of the present invention. [Figure 4] FIG. 11 is a perspective view showing the operation of a wireless device in a second embodiment of the present invention. [Diagram 5] FIG. 1 is a perspective view showing an example of the configuration of a wireless device referred to in the present invention. [Figure 6] FIG. 11 is a perspective view showing an example of the configuration of another wireless device referred to in the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings. In all the drawings, the same components are denoted by the same reference numerals, and the description thereof will be omitted as appropriate. (First embodiment) A first embodiment of the present invention, which is the basis of each embodiment of the present invention, will be described.
[0017] The configuration of this embodiment will be described.
[0018] FIG. 1 is a perspective view showing an example of the configuration of a wireless device in a first embodiment of the present invention. In the figures following FIG. 1 and the following description, the direction in which the wireless device is installed is one example, and the direction in which the wireless device is actually installed may be any direction. In the figures following FIG. 1 and the following description, the width (left and right) direction of the wireless device as viewed from a certain direction is indicated by "X", the depth (front and back) direction is indicated by "Y", and the height (up and down) direction is indicated by "Z". That is, the X direction, Y direction, and Z direction are mutually orthogonal. In the X direction, Y direction, and Z direction, the right direction, the back direction, and the top direction are referred to as "positive directions", and the left direction, the front direction, and the bottom direction are referred to as "negative directions". In addition, in the following description, the positive side in the X direction will be referred to as the "X+" side, the negative side in the X direction will be referred to as the "X-" side, the positive side in the Y direction will be referred to as the "Y+" side, the negative side in the Y direction will be referred to as the "Y-" side, the positive side in the Z direction will be referred to as the "Z+" side, and the negative side in the Z direction will be referred to as the "Z-" side.
[0019] As shown in FIG. 1, a wireless device 600 in this embodiment includes a first waveguide 210, a second waveguide 220, coaxial-waveguide conversion attachments 101 and 102, and two components 301 and 302.
[0020] First waveguide 210 propagates a first polarized wave (linearly polarized wave having a polarization plane parallel to the XY plane in the example of FIG. 1).
[0021] The second waveguide 220 propagates a second polarized wave having an angle different from that of the first polarized wave (linearly polarized wave having a polarization plane parallel to the YZ plane in the example of FIG. 1). The first polarized wave and the second polarized wave are, for example, linearly polarized waves or elliptical polarized waves. The second polarized wave has an angle difference of, for example, 90 degrees from the first polarized wave. The first waveguide 210 and the second waveguide 220 are, for example, rectangular waveguides or elliptical waveguides (rectangular waveguides in the example of FIG. 1).
[0022] 1, for ease of understanding, the inner surfaces of the first waveguide 210 and the second waveguide 220 are illustrated. The first waveguide 210 and the second waveguide 220 are included in, for example, an orthogonal polarization separator (not shown; see the second embodiment). In this case, the orthogonal polarization separator outputs each of the orthogonal polarized waves separated from an input radio wave to either the first waveguide 210 or the second waveguide 220.
[0023] The components 301 and 302 have cross sections perpendicular to the propagation directions of the first and second polarized waves that have the same shape and orientation. Each of the components 301 and 302 has a coaxial terminal 310. The components 301 and 302 are detachably connected to the coaxial-waveguide conversion attachments 101 and 102. The components 301 and 302 are, for example, low noise amplifiers.
[0024] The coaxial-waveguide conversion attachments 101 and 102 have the same shape. Each of the coaxial-waveguide conversion attachments 101 and 102 includes a third waveguide 104.
[0025] The coaxial waveguide conversion attachments 101 and 102 connect one end of the third waveguide 104 on the first waveguide 210 or second waveguide 220 side to either the first waveguide 210 or the second waveguide 220 so that the third waveguide 104 can be attached to or detached from either the first waveguide 210 or the second waveguide 220. Although the attachment / detachment mechanism is omitted in FIG. 1, it is, for example, a screw that connects the third waveguide 104 to the first waveguide 210 or the second waveguide 220 (see the second embodiment). In FIG. 1, in order to make the drawing easier to understand, a gap is provided between the third waveguide 104 and the first waveguide 210 or the second waveguide 220.
[0026] The third waveguide 104 converts either the first polarization or the second polarization between the forms that can be propagated through the axially symmetric coaxial cable. In FIG. 1, only the inner surface of the third waveguide 104 is shown for ease of understanding. In FIG. 1, the third waveguide 104 is connected to the first waveguide 210 or the second waveguide 220 such that the cross-sectional shape parallel to the XZ plane of the first waveguide 210 or the second waveguide 220 is extended in the Y direction while maintaining its orientation. The third waveguide 104 is, for example, a coaxial waveguide converter having a conductor with a step shape in the length direction.
[0027] FIG. 2 is a two-sided view showing an example of the configuration of the third waveguide in the first embodiment of the present invention. In FIG. 2, the upper side shows a top view of the third waveguide 104 included in the coaxial-waveguide conversion attachment 102, and the lower side shows a side view of the third waveguide 104 included in the coaxial-waveguide conversion attachment 102. In FIG. 2, the inside of the third waveguide 104 is shown in a see-through manner. FIG. 2 illustrates a case where a conductor portion connecting the third waveguide 104 and the coaxial terminal 310 is a coaxial-waveguide converter having a step-shaped conductor in the length direction of the third waveguide 104. The third waveguide 104 has a step-shaped partition (step portion 106) that electrically connects the coaxial terminal 310 (the core wire of the coaxial cable) of the component 302 and the inner side surface of the third waveguide 104. FIG. 2 illustrates a case where the step portion 106 has three steps. The inner dimensions of the third waveguide 104 and the shape and dimensions of the step portion 106 may vary depending on the frequency of the radio wave, etc. With this configuration, the third waveguide 104, which is the coaxial-waveguide converter shown in Fig. 2, converts between either the first polarized wave or the second polarized wave and a form that can propagate through an axially symmetric coaxial cable. A coaxial-waveguide converter having a step-shaped conductor in the length direction is disclosed in, for example, JP 2012-222438 A, and detailed description thereof will be omitted.
[0028] The description will be given again with reference to FIG. 1. The coaxial-waveguide conversion attachments 101, 102 are detachable from the parts 301, 302 so that the other end of the third waveguide 104 on the coaxial terminal 310 side is connected to the coaxial terminal 310 when connected to the parts 301, 302. The attachment / detachment mechanism is omitted in FIG. 1, but is, for example, a screw that connects the third waveguide 104 to the parts 301, 302 (see the second embodiment). More specifically, for example, the parts 301, 302 have a first screw hole (not shown) on the surface facing the third waveguide 104. The third waveguide 104 has a first through hole (not shown) on the surface facing the parts 301, 302, and a second through hole (not shown) arranged at a position rotated by the angle difference between the first polarization and the second polarization from the first through hole. The third waveguide 104 can be screwed into the first screw hole via either the first through hole or the second through hole. Alternatively, for example, the components 301 and 302 have a first screw hole (not shown) on a surface facing the third waveguide 104, and a second screw hole (not shown) arranged at a position rotated from the first screw hole by an angle difference between the first polarization and the second polarization. The third waveguide 104 has a first through hole (not shown) on a surface facing the components 301 and 302. The third waveguide 104 may be screwed into either the first screw hole or the second screw hole via the first through hole.
[0029] As described above, in the wireless device 600 of this embodiment, the coaxial-waveguide conversion attachments 101 and 102 convert between the first polarization or the second polarization having an angle different from the first polarization and a form that can propagate through an axially symmetric coaxial cable. The coaxial-waveguide conversion attachments 101 and 102 have the same shape, and connect one end of the third waveguide 104 on the first waveguide 210 or second waveguide 220 side to either the first waveguide 210 or the second waveguide 220 so that the third waveguide 104 can be attached to or detached from either the first waveguide 210 or the second waveguide 220. Moreover, the coaxial-waveguide conversion attachments 101, 102 are detachable from the components 301, 302 so that the other end of the third waveguide 104 on the coaxial terminal 310 side is connected to the coaxial terminal 310 of the components 301, 302 arranged in a predetermined orientation when connected to the components 301, 302. As a result, the wireless device 600 does not require a twisted waveguide. Therefore, the wireless device 600 in this embodiment has an effect of being able to arrange components for each polarization having the same shape in a cross section perpendicular to the propagation direction of the polarization in the same orientation while suppressing an increase in the number of types of components in a device that processes radio waves for each polarization.
[0030] In this embodiment, the wireless device 600 may further include a heat pipe 500. The two components 301 and 302 may have the same shape and may contact the heat pipe 500 on the same surface. In this case, the wireless device 600 has an advantage that the components 301 and 302 dissipate heat uniformly. Second embodiment A second embodiment of the present invention based on the first embodiment of the present invention will be described. The wireless device in this embodiment is a wireless receiving device, and is mounted on, for example, an HTS satellite. The LNA included in the wireless device is mounted at low cost and high density.
[0031] The configuration of this embodiment will be described.
[0032] Fig. 3 is a perspective view showing an example of the configuration of a wireless device according to a second embodiment of the present invention, in which the components are shown in a state in which the connections between them have been removed for ease of understanding.
[0033] As shown in FIG. 3 (also see FIG. 4 described later), the wireless device 605 in this embodiment includes an antenna feeder 400, an OMT 208, an LNA 391 for vertical connection, an LNA 392 for horizontal connection, coaxial-waveguide conversion attachments 151, 152, and a heat pipe 500.
[0034] The OMT 208 includes a first waveguide 218 for vertical connection and a second waveguide 228 for horizontal connection. Here, the first waveguide 218 has a rectangular (rectangular) cross section that is long in a direction (Z direction in FIG. 3) perpendicular to the traveling direction of the radio wave (Y direction in FIG. 3). The second waveguide 228 has a cross section that is rotated 90 degrees from the cross section of the first waveguide 218 with respect to the traveling direction of the radio wave (Y direction in FIG. 3).
[0035] The coaxial-waveguide conversion attachment 151 includes a third waveguide 104 having a shape in which the first waveguide 218 is extended in the traveling direction of the radio wave (Y direction in FIG. 3). If the coaxial-waveguide conversion attachment 151 is rotated 90 degrees with respect to the traveling direction of the radio wave (Y direction in FIG. 3), the second waveguide 228 is a waveguide having a shape in which the second waveguide 228 is extended in the traveling direction of the radio wave (Y direction in FIG. 3). The coaxial-waveguide conversion attachment 151 can be connected to either the first waveguide 218 or the second waveguide 228. In the example shown in FIG. 3, the coaxial-waveguide conversion attachments 151 and 152 have a through hole 110 on the first opening 103 (FIG. 4) side, and the OMT 208 has a screw hole 230. The through hole 110 and the screw hole 230 are detachably connected by a screw (not shown). Moreover, the coaxial-waveguide conversion attachment 151 can be connected to the LNA 391, and can be further connected to the LNA 392 by being rotated 90 degrees in the traveling direction of the radio wave (Y direction in FIG. 3). In the example shown in FIG. 3, the coaxial-waveguide conversion attachments 151 and 152 have a through hole 120 on the second opening 105 side, and the LNAs 391 and 392 have a screw hole 330 (FIG. 4). The through hole 120 and the screw hole 330 are detachably connected by a screw (not shown). The coaxial-waveguide conversion attachment 152 has the same shape as the coaxial-waveguide conversion attachment 151.
[0036] The operation of this embodiment will be described.
[0037] Fig. 4 is a perspective view showing the operation of a wireless device according to the second embodiment of the present invention, in which the components are shown in a state where the connections between them have been removed for ease of understanding.
[0038] As shown in Fig. 4, coaxial-waveguide conversion attachments 151 and 152 can be connected to either LNA 391 or LNA 392 by rotating them in 90-degree increments about the direction of radio wave travel (Y direction in Fig. 4). In the example shown in Fig. 4, the Y+ side of coaxial-waveguide conversion attachments 151 and 152 can be screwed to the Y- side of LNA 391 or LNA 392 in a state where the attachments are rotated in 90-degree increments.
[0039] Furthermore, the coaxial-waveguide conversion attachments 151 and 152 can be connected to either the first waveguide 218 or the second waveguide 228. As a result, if the LNA 391 for vertical connection and the LNA 392 for horizontal connection have the same shape, they can be arranged in the same orientation with respect to rotation with respect to the traveling direction of the radio wave (Y direction in FIG. 4). In the example shown in FIG. 3, the Y- side side of the coaxial-waveguide conversion attachments 151 and 152 can be screwed to the Y+ side side of the OMT 208 while being rotated in 90-degree increments.
[0040] As described above, in the wireless device 605 of this embodiment, the coaxial-waveguide conversion attachments 151 and 152 having the same shape absorb the difference in arrangement due to the difference between vertical and horizontal connection of the LNAs 391 and 392 to the OMT 208. Here, the wireless device 605 does not require a twisted waveguide. As a result, the wireless device 605 can reduce the mass and size of the device while suppressing an increase in the number of types of components.
[0041] Furthermore, in wireless device 605, when heat dissipation from LNAs 391 and 392 is performed by a single plate-shaped heat pipe, LNA 392 for horizontal connection and LNA 391 for vertical connection contact heat pipe 500 on surfaces having the same shape. As a result, in wireless device 605, heat dissipation from LNAs 391 and 392 becomes uniform.
[0042] Therefore, the wireless device 605 in this embodiment has the advantage that, in a device that processes radio waves for each polarization, the number of types of components can be suppressed while components for each polarization having the same shape can be arranged in the same direction.
[0043] In the above description, the wireless device 605 includes an LNA. However, the device included in the wireless device 605 is not limited to an LNA, and may be a general RF (Radio Frequency) device. In an RF device in which an RF signal is input and output through a waveguide, a coaxial cable is usually connected to the waveguide. The coaxial waveguide converter is usually integral with the RF device. When vertically polarized and horizontally polarized signals are processed, two RF devices and two coaxial waveguide converters are required. In this embodiment, the coaxial waveguide converter is an in-line and detachable attachment (coaxial waveguide conversion attachments 151 and 152), so that two RF devices of the same configuration arranged in the same direction can be used to handle both polarized waves. The RF device in this embodiment may be, for example, a frequency converter, a solid state power amplifier (SSPA), or the like.
[0044] The present invention has been described above by way of example with reference to the above-mentioned embodiments and their modifications. However, the technical scope of the present invention is not limited to the scope described in the above-mentioned embodiments and their modifications. It is clear to those skilled in the art that various modifications or improvements can be made to the embodiments. In such cases, new embodiments with such modifications or improvements may also be included in the technical scope of the present invention. This is clear from the matters described in the claims. [Industrial Applicability]
[0045] The present invention can be used for processing radio waves using a waveguide. [Explanation of symbols]
[0046] 101, 102, 151, 152 Coaxial waveguide conversion attachment 103 First opening 104 3rd Waveguide 105 Second Opening 106 Step section 110 Through hole 120 Through hole 191, 192 waveguide 208 OMT 210, 218 First waveguide 220, 228 Second Waveguide 230 screw hole 301, 302 Parts 381, 382, 391, 392 LNAs 310 coaxial terminal 320 Coaxial Connector 330 screw hole 400 Antenna Feeder 500 Heat Pipes 600, 605 Radio equipment
Claims
1. a first waveguide for propagating a first polarized wave; a second waveguide that propagates a second polarized wave having an angle different from that of the first polarized wave; Two coaxial-waveguide transition attachments having the same shape; two parts each including a coaxial terminal, the cross sections perpendicular to the propagation directions of the first polarized wave and the second polarized wave having the same shape and orientation; Equipped with Each of the coaxial-waveguide transition attachments comprises: a third waveguide that converts either the first polarization or the second polarization between an axially symmetric form capable of propagating through a coaxial cable, one end of the third waveguide is connected to either the first waveguide or the second waveguide so as to be detachably connected to either the first waveguide or the second waveguide; The third waveguide is detachably connected to the component such that the other end of the third waveguide on the side of the coaxial terminal is connected to the coaxial terminal when the third waveguide is connected to the component. Radio equipment.
2. The third waveguide is a coaxial-waveguide converter in which a conductor portion connecting the coaxial terminal and the third waveguide forms a step shape in the longitudinal direction of the third waveguide.
2. The wireless device of claim 1.
3. The first waveguide and the second waveguide are each a rectangular waveguide or an elliptical waveguide.
2. The wireless device of claim 1.
4. the component has a first screw hole on a surface facing the third waveguide; the third waveguide has, on a surface facing the component, a first through hole and a second through hole arranged at a position rotated from the first through hole by an angle difference between the first polarized wave and the second polarized wave, The third waveguide can be screwed into the first screw hole via either the first through hole or the second through hole. A wireless device according to any one of claims 1 to 3.
5. the component has, on a surface facing the third waveguide, a first screw hole and a second screw hole arranged at a position rotated from the first screw hole by an angle difference between the first polarization and the second polarization, the third waveguide has a first through hole on a surface facing the component; The third waveguide can be screwed into both the first screw hole and the second screw hole via the first through hole. A wireless device according to any one of claims 1 to 3.
6. The angle difference between the first polarized wave and the second polarized wave is 90 degrees. A wireless device according to any one of the preceding claims.
7. an orthogonal polarization separator that outputs each of the orthogonally polarized waves separated from an input radio wave to either the first waveguide or the second waveguide; The wireless device of claim 6 further comprising:
8. The component is a low noise amplifier.
8. The wireless device of claim 7.
9. The two parts have the same shape, A heat pipe in which the two components contact each other on the same surface.
9. The wireless device of claim 1, further comprising:
Citation Information
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