JP2009253835A - Support mechanism of antenna device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a support mechanism of an antenna device, capable of improving assembleability by facilitating alignment of an antenna rack and a transmitter receiver rack. <P>SOLUTION: The support mechanism of a radio communication device 1 includes a transmitter rack 12 to support a transmitter 121 and the like, the antenna rack 13 to support an antenna 131, and a flexible waveguide 14 to connect the waveguide connecting part 131c of the antenna 131 to a waveguide connecting part (not shown) on the transmitter side. The mechanism includes a connecting fitting 15 used as a connecting means to connect the antenna rack 13 to the transmitter receiver rack 12, and the antenna rack 13 is connected to the transmitter receiver rack 12 by the connecting fitting 15, thereby aligning both racks 12, 13. For instance, the connecting fitting 15 is engaged with an engagement member (not shown) provided in the transmitter receiver rack 12 for aligning them. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an antenna device including an antenna and a transmitter / receiver, and more particularly to an antenna mount and a support mechanism for the transmitter / receiver mount in the antenna device.

  For example, as shown in FIG. 4, the conventional antenna device support mechanism includes an antenna mount 23 that supports an antenna 231, a transceiver mount 22 that supports two transceivers 221, an antenna mount 23, and a transceiver. The steel tube pillar 21 for mounting the gantry 22 is provided. The antenna 231 and the two transceivers 221 are mounted on the antenna base 23 and the transceiver base 22, respectively. The antenna base 23 and the transceiver base 22 are attached to the steel pipe column 21 by fastening members such as wires 22c, bolts, and nuts. It is installed. The waveguide connecting portion on the antenna mount 23 side and the waveguide connecting portion on the transceiver mount 22 side are connected by a flexible waveguide 24. Since the length of the flexible waveguide 24 affects antenna characteristics such as a frequency range, the antenna mount 23 and the antenna mount 23 are arranged so that the length of the flexible waveguide 24 connected to both waveguide connection portions is within an appropriate range. The distance L between the transmitter / receiver base 22 is defined by allowing a predetermined error. For example, the transceiver frame 22 is disposed 200 mm below the antenna frame 23. If the length of the flexible waveguide 24 is not sufficient with respect to the distance between the antenna mount 23 and the transmitter / receiver mount 22, an unexpected mechanical load is applied to the flexible waveguide 24. Become. Therefore, the length of the flexible waveguide 24 is allowed to be connected and has a surplus length so as to absorb the positioning error of both the bases 22 and 23.

Next, the assembly procedure of the antenna device is shown in the following (1) to (6).
(1) Mount the antenna mount on the steel pipe column.
(2) Position the transceiver frame so as to maintain a predetermined distance from the antenna frame. Here, the distance from the antenna mount is measured, and the transmitter / receiver mount is positioned so that the antenna mount and the transmitter / receiver mount are at a predetermined interval.
(3) Mount the transceiver frame on the steel pipe column.
(4) Mount the antenna on the antenna mount.
(5) Mount the transceiver on the transceiver frame.
(6) A waveguide is connected to the waveguide connecting portion on the antenna mount side and the waveguide connecting portion on the transceiver mount side.

In addition to the antenna device shown in FIG. 4, the antenna mounting housing side waveguide connection part and the reflector side waveguide connection part are provided, and the connection between the two connection parts precedes the connection of the regular waveguide. In some cases, the length of the regular waveguide is adjusted at the time of assembly by disposing a dummy waveguide and measuring the distance between the two waveguide connection portions (see, for example, Patent Document 1). According to this configuration, the procedure for assembling the antenna device requires a procedure for exchanging the dummy waveguide and the regular waveguide after the length adjustment by the dummy waveguide. The dummy waveguide is formed in a shape having high strength and rigidity as compared to a regular waveguide.
JP 2002-158593 A

  In the conventional antenna device support mechanism (see FIG. 4), after fixing the antenna mount to the steel pipe column, it is necessary to measure the distance (distance) between both mounts in order to position the transceiver mount. There was a problem that the assembly work was complicated. Further, when the positional relationship between the antenna mount and the transmitter / receiver mount is not appropriate, there is a problem that it takes a lot of time to remove the transmitter / receiver mount or the like and to perform measurement again.

  On the other hand, in the support mechanism of other antenna devices (see Patent Document 1), the length is adjusted using a dummy waveguide having higher strength and higher rigidity than a regular waveguide. If it is necessary to remove the antenna-mounted housing during adjustment, the dummy waveguide will not be damaged by an unexpected mechanical load. However, there is a problem that the procedure for replacing the dummy waveguide and the regular waveguide after the length adjustment by the dummy waveguide is required, and the assembly work is complicated.

  The present invention has been made to solve the conventional problems, and it is an object of the present invention to provide a support mechanism for an antenna device that facilitates alignment between an antenna mount and a transceiver mount and improves assembly workability. To do.

  (1) A support mechanism of an antenna device according to the present invention includes a transceiver frame that supports a transceiver, an antenna frame that supports an antenna, and a waveguide that connects the antenna and the transceiver. The antenna device supporting mechanism is characterized in that a connecting bracket for connecting the antenna mount and the transceiver mount is provided.

  According to the present invention, since the connecting bracket for connecting the antenna mount and the transmitter / receiver mount is provided, the antenna mount and the transmitter / receiver mount are kept in a predetermined positional relationship depending on the shape and arrangement of the connecting bracket. can do. In this case, the positioning is completed by connecting the two frames when the antenna device is assembled. Therefore, when the antenna device is assembled, the measurement work for positioning the antenna mount and the transmitter / receiver mount becomes unnecessary, and the assembly work is facilitated. Further, since the positioning error is reduced, the extra length of the waveguide can be reduced. Since the length of the waveguide is not adjusted at the time of assembly, the above-described provisional mounting of the dummy waveguide and the replacement work between the dummy waveguide and the regular waveguide are unnecessary.

  The predetermined positional relationship is a positional relationship in which the length of the waveguide capable of at least realizing desired antenna characteristics and finely adjusting the antenna direction (horizontal direction and vertical direction) can be set.

  Further, according to the present invention, since the alignment is completed by connecting the antenna frame and the transceiver frame when the antenna device is assembled, it is possible to remove the antenna frame and the transceiver frame and perform measurement again. Disappear. Therefore, it is possible to prevent the connected waveguide from being damaged due to an unexpected mechanical load due to the removal of the antenna mount and the transmitter / receiver mount.

  (2) In the support mechanism of the antenna device according to the present invention, the connection fitting and the transceiver frame have a fitting portion for fitting each other, and the connection bracket and the transmission / reception mounted on the antenna frame. It is characterized in that the machine base is fitted by the fitting portion.

  According to the present invention, since the alignment is completed by fitting the antenna frame and the transmitter / receiver frame when the antenna device is assembled, the alignment can be easily performed without using a special jig or component. it can.

  (3) In the support mechanism of the antenna device according to the present invention, the connection fitting and the antenna mount have a fixing portion for fixing each other, and the connection fitting attached to the antenna mount, the transceiver frame, Is characterized by being fixed by the fixing portion.

  According to the present invention, the antenna base and the transmitter / receiver base that are fitted to each other when the antenna device is assembled are further fixed. Therefore, an unexpected external force acts on the support mechanism of the antenna device, so that the connecting bracket becomes the transmitter / receiver base. Can be prevented from leaving.

  The present invention provides an antenna apparatus having an effect of facilitating the alignment work between the antenna mount and the transmitter / receiver mount and improving the assembly workability by providing the connecting bracket for connecting the antenna mount and the transmitter / receiver mount. A support mechanism can be provided.

  Hereinafter, a support mechanism for a wireless communication apparatus as an embodiment of a support mechanism for an antenna apparatus according to the present invention will be described with reference to the drawings.

  FIG. 1 shows a support mechanism of a wireless communication apparatus as an embodiment of the present invention, FIG. 2 shows a transceiver frame, and FIG. 3 shows an antenna frame.

In FIG. 1, a wireless communication device 1 is used as, for example, a microwave communication ground station for communication, and includes an antenna 131 and a metal antenna mount 13 (see FIG. 3) that supports the antenna 131. Two transceivers 121, a waveguide branch circuit (not shown), a metal transceiver frame 12 supporting the two transceivers 121 and the waveguide branch circuit, and a flexible waveguide 14 The connection bracket 15 that connects the antenna mount 13 and the transmitter / receiver mount 12 and the substantially vertical steel pipe column 11 to which the antenna mount 13 and the transmitter / receiver mount 12 are mounted. In this embodiment, the antenna pedestal 13 including the antenna mounting portion 13a ₁ and the connecting fitting attachment portion 13a _2, a transceiver stand 12, the coupling fitting 15, the tubular columns 11, correspond to the support mechanism.

  The antenna 131 includes, for example, a reflecting mirror 131g having an outer diameter of 300 mm or an outer diameter of 600 mm, an elevation angle adjusting unit 131b, and the like. The antenna 131 can be rotated in a vertical direction within a predetermined range around a fastening portion by a fastening member 131d such as a bolt or a nut, and the elevation angle of the reflecting mirror is adjusted by a manual operation. The elevation angle adjustment range is limited by a fastening member 131f such as a bolt or a nut that moves through the slide hole 131e.

  The two transmitters / receivers 121 are two sets of active / spare transmitters / receivers. Here, a transmission line (corresponding to the flexible waveguide 14) of electromagnetic waves (microwaves) reaching both transceivers is branched by a waveguide branch circuit (not shown).

  One end of the flexible waveguide 14 is connected to a waveguide connection portion 131c on the antenna side, and the other end is connected to a waveguide connection portion (not shown) on the transceiver side that leads to a waveguide branch circuit (not shown). It is connected to transmit microwaves having a predetermined frequency based on antenna characteristics.

  In the present embodiment, the transmitter / receiver mount 12 is disposed above the antenna mount 13 on the steel tube column 11 so that the waveguide connection 131c on the antenna side and the waveguide connection on the transmitter / receiver face each other. ing. If a line connecting both waveguide connecting portions is assumed, this virtual line is substantially horizontal and perpendicular to the central axis of the steel pipe column 11.

  In FIG. 2, the transceiver frame 12 includes a transceiver support portion 12a (a fitting member 12d, a reinforcing member 12f, and a contact member 12g) that supports two transceivers 121 and a waveguide branch circuit (not shown). ) And a support part 12b (including a contact member 12h) fastened to the transceiver support part 12a by the fastening member 12c, and is mounted on the steel pipe column 11 above the antenna mount 13.

The transceiver support unit 12a includes two substantially rectangular plate members 12a ₁ and 12a ₂ that are orthogonal to _{each other} , and a substantially triangular reinforcing member 12f ₁ that supports the upper and lower sides of the plate members 12a ₁ and 12a ₂ to supplement rigidity. 12f ₂ , a prismatic fitting member 12d provided on the bottom surface of the reinforcing member 12f ₂ , and contact members 12g ₁ and 12g ₂ protruding from the upper and lower sides of the plate members 12a ₁ and 12a _2. . The support part 12b has a contact member 12h bent in a V-shaped cross section.

Here, two transceivers 121 and a waveguide branch circuit (not shown) are attached to _one plate member 12a1, a flexible waveguide 14 is introduced from the opening 12e, and the lead to the waveguide branch circuit is introduced. It is designed to be connected to the wave tube connection. Further, the abutting members 12g ₁ and 12g ₂ protruding from the other plate member 12a ₂ and the abutting member 12h of the support portion 12b face each other when the transceiver frame 12 is mounted on the steel pipe column 11. It is fastened by fastening members 12c such as bolts and nuts in a state of being in contact with the steel pipe column 11. The fitting member 12d is for fitting with the connecting metal fitting 15 attached to the antenna mount 13 when the transmitter / receiver mount 12 and the antenna mount 13 are aligned.

In FIG. 3, the antenna mount 13 is supported by an antenna support portion 13a that supports an antenna 131 having an elevation angle adjustment portion 131b, a waveguide connection portion 131c, a reflecting mirror 131g, and the like, and a fastening member 13c such as a bolt and a nut. A support portion 13b fastened to the portion 13a, and is mounted on the steel pipe column 11 below the transceiver frame 12. Antenna support portion 13a includes an antenna mounting portion 13a ₁ for mounting the antenna 131, the connecting metal fitting attachment portion 13a ₂ of the connecting fitting 15 is mounted, the. An antenna mounting portion 13a ₁ and the connecting metal fitting attachment portion 13a ₂ is fastened bolt, the fastening member such as a nut.

The connecting metal fitting 15 includes a substantially square upper plate 15b and a pair of projecting pieces 15a ₁ and 15a ₂ that project vertically from two opposing sides of the upper plate 15b. The upper plate 15b and the projecting piece 15a are formed by bending a sheet metal.

In the present embodiment, when the transmitter / receiver base 12 and the antenna base 13 are aligned, the surface of the upper plate 15b of the coupling bracket 15 and the bottom surface 12d ₁ (see FIG. 2) of the fitting member 12d come into contact with each other. The two side surfaces of the fitting member 12d are adapted to be fitted between the projecting pieces 15a ₁ and 15a _{2 of the} connection fitting 15. In the state in which the connecting metal fitting 15 and the fitting member 12d are fitted, the projecting pieces 15a ₁ and 15a ₂ move in the horizontal direction (for example, the left and right direction in FIG. 1) of the transceiver frame 12 and the antenna frame 13. Functions as a stopper to stop

  An assembling procedure of the wireless communication device 1 configured as described above will be described.

(1) The antenna mount 13 is mounted on the steel pipe column 11.
Specifically, in a state where the connecting fitting attachment portion 13a ₂ of the antenna support portion 13a and the support part 13b are opposed across the tubular columns 11, to both of the support portion 13a, the fastening 13b in the fastening member 13c (fixed) . The connecting metal fitting 15 is intended to be mounted in advance bolts, the coupling fitting attachment portion 13a ₂ by a fastening member such as a nut.

(2) The transceiver frame 12 is positioned so as to maintain a predetermined distance from the antenna frame 13.
Specifically, both support parts 12a and 12b are arranged above the antenna mount 13 so that the transceiver support part 12a and the support part 12b can move in the vertical direction with the steel pipe column 11 being opposed to each other. Fastened (temporarily fixed) with the fastening member 12c. Then, with the bottom surface 12d ₁ of the surface and the fitting member 12d of the upper plate 15b of the connecting metal fitting 15 comes into contact, so that the two sides of the engagement member 12d is fitted between the projecting pieces _15a 1, 15a ₂ of the connecting fitting 15, The transceiver support part 12a is positioned with respect to the antenna support part 13a.

(3) The transceiver frame 12 is mounted on the steel pipe column 11.
Specifically, in a state where the contact member 12g of the transceiver support portion 12a and the contact member 12h of the support portion 12b are in contact with the steel pipe column 11, both the contact members 12g and 12h are fastened by the fastening member 12c. (Fixed).

(4) Mount the antenna 131 on the antenna mount 13.
Specifically, the antenna body including the reflecting mirror 131g and the elevation angle adjustment unit 131b and the antenna support unit 13a are fastened (fixed) by fastening members such as bolts and nuts.

(5) Two transceivers 121 and a waveguide branch circuit (not shown) are mounted on the transceiver frame 12.
Specifically, in a state in which the waveguide connecting portion (not shown) leading to the waveguide branch circuit is opposed to the opening portion 12e of the plate member 12a ₁ (exposed state), bolts, etc. fastening member by two nuts The transceiver 121 and a waveguide branch circuit (not shown) and the plate member 12a ₁ are fastened (fixed).

  (6) The flexible waveguide 14 is connected to the waveguide connection portion 131c of the antenna 131 and the waveguide connection portion (not shown) on the transceiver frame side. In the present embodiment, the flexible waveguide 14 is provided with an extra length for connection work of the flexible waveguide 14, fine adjustment of the direction of the antenna 131, and the like. Note that the direction of the antenna 131 is changed by adjusting the elevation angle (rotating in the vertical direction) and adjusting the azimuth angle (rotating in the circumferential direction) in order to match the directivity with the opposing antenna communicating with the antenna.

  According to the wireless communication device 1 as an embodiment of the present invention, the antenna mount 13 and the transceiver mount 12 are fitted with the connecting bracket 15 and the fitting member 12d in the antenna mount. 13 and the transmitter / receiver base 12 are appropriately determined, so that when the wireless communication apparatus 1 is assembled, the positions of both bases 12 and 13 can be determined without measuring the distance between the two bases 12 and 13 and performing measurement again. Can be completed.

  In addition, according to the present embodiment, the positioning error is a variation or an attachment error at the time of manufacturing the connecting metal fitting 15 and the fitting member 12d, so that the extra length of the flexible waveguide 14 can be reduced.

  Further, according to the present embodiment, the antenna mount 13 and the transmitter / receiver mount 12 are aligned by fitting the connecting bracket 15 and the fitting member 12d when the wireless communication device 1 is assembled. There is no need to use special jigs, parts or measuring instruments for alignment.

  In addition, according to the present embodiment, since the waveguide connecting portion 131c of the antenna 131 and the waveguide connecting portion (not shown) on the transmitter / receiver face each other, bending of the flexible waveguide 14 is eliminated. can do. Therefore, the extra length of the flexible waveguide 14 is reduced and desired antenna characteristics can be obtained.

In the embodiment described above, during the alignment of the transceiver mount 12 and the antenna pedestal 13, with the bottom surface 12d ₁ of the upper plate 15b surface and the fitting member 12d of the connecting metal fitting 15 comes into contact, mating Although the case where the two opposite side surfaces of the member 12d are fitted between the projecting pieces 15a ₁ and 15a ₂ of the coupling metal 15 has been described, the present invention is not limited to this, but the coupling metal 15 and the fitting member 12d are fitted. In this state, both may be further fixed. For example, the projecting pieces 15a ₁ and 15a ₂ may be threaded, and the projecting pieces 15a ₁ and 15a ₂ may be screwed to two opposing side surfaces of the fitting member 12d. In this configuration, the screw hole portion and the screw correspond to the fixing portion.

  According to this configuration, since the antenna base 13 and the transceiver base 12 fitted when the wireless communication device 1 is assembled are further fixed, the support mechanism of the wireless communication device 1 is, for example, in the left-right direction in FIG. It is possible to prevent the connection fitting 15 or the fitting member 12d from being detached (moved) when an external force is applied.

Moreover, in embodiment mentioned above, about the case where the connection bracket 15 is attached to the antenna mounting portion 13a ₁ of the antenna mount 13, and the fitting member 12d is provided on the bottom surface of the transmitter / receiver support portion 12a ₁ of the transmitter / receiver mount 12. As described above, in the present invention, in addition to this, for example, the connection fitting 15 is mounted on the bottom surface of the transceiver support portion 12a ₁ and the fitting member 12d is provided on the surface (upper surface) of the antenna mounting portion 13a ₁ of the antenna mount 13. You may do it. According to this configuration, the load applied to the antenna mount 13 can be reduced.

It is a perspective view of the support mechanism of the radio | wireless communication apparatus as one Embodiment of this invention. It is a perspective view of the transceiver stand as one embodiment of the present invention. It is a perspective view of the antenna mount as one embodiment of the present invention. It is a perspective view which shows one Embodiment of the support mechanism of the conventional radio | wireless communication apparatus.

Explanation of symbols

1 Wireless communication device (antenna device)
11 Steel pipe column (support mechanism)
12 Transceiver base (support mechanism)
12a Transceiver support part (support mechanism)
12b Support part (support mechanism)
12c Fastening member (support mechanism)
12d Fitting member (support mechanism, fitting part)
12d ₁ bottom surface (support mechanism, fitting part)
12e Opening (support mechanism)
_12f, 12f _1, 12f ₂ reinforcing member (support mechanism)
_12g, 12g _1, 12g ₂ abutting member (support mechanism)
12h Contact member (support mechanism)
13 Antenna mount (support mechanism)
13a Antenna support part (support mechanism)
13a ₁ antenna mounting part (support mechanism)
13a ₂ connecting bracket mounting part (support mechanism)
13b Support part (support mechanism)
13c Fastening member (support mechanism)
14 Flexible waveguide 15 Connecting bracket (support mechanism, fitting part)
_15a, 15a 1, 15a ₂ projecting pieces (supporting mechanism, the fitting portion)
15b Upper plate (support mechanism, fitting part)
121 Two transceivers 131 Antenna 131a Antenna support member 131b Elevation angle adjustment part 131c Waveguide connection part 131d Fastening member 131e Slide hole 131f Fastening member 131g Reflective mirror

Claims (3)

In a support mechanism for an antenna device, comprising: a transceiver frame that supports a transceiver; an antenna frame that supports an antenna; and a waveguide that connects the antenna and the transceiver;
A support mechanism for an antenna device, comprising: a connecting fitting that connects the antenna mount and the transceiver mount. The connection fitting and the transceiver frame have a fitting portion for fitting each other,
The support mechanism of the antenna device according to claim 1, wherein the coupling bracket attached to the antenna mount and the transceiver frame are fitted by the fitting portion. The connection fitting and the antenna mount have a fixing part for fixing each other,
The support mechanism for an antenna device according to claim 2, wherein the coupling fitting mounted on the antenna mount and the transceiver frame are fixed by the fixing portion.

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