JPH1127020A - Antenna system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To miniaturize an antenna system together with cost reduction by adding a primary radiator (horn) to a high frequency receiving part, forming the concave and convex cylindrical attachment faces to the high frequency receiving part and a clamp unit respectively, and then fitting both concave and convex attachment faces to each other. SOLUTION: A high frequency receiving part 12 is fit to the attachment part of a fixed clamp unit 20 and can revolve right and left around the center axis 17a of a primary radiator (horn) 17. A convex cylindrical attachment face 24 of the part 12 is fit to a concave cylindrical attachment face 25 formed at the tip of the unit 20. Then a special conical spring washer 26 is attached to a fixing screw 21, and the screw 21 is put into a slot 31 via a special spacer 27 having a planar face and a concave cylindrical face on both sides respectively. The screw 21 is clamped to a short shaft boss 30 which has its inner wall processed by the tapping machining 29 and also loosely fit via a resin or rubber spacer 28.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a high-frequency receiving section disposed on an arm of a parabolic antenna, and more particularly, to two types of independent linearly polarized waves (horizontally polarized waves, vertically polarized waves) orthogonal to each other. The present invention relates to a mounting structure having a polarization angle adjusting mechanism of a satellite broadcast high-frequency receiving unit for receiving (polarization).

[0002]

2. Description of the Related Art In order to receive a satellite broadcast, it is necessary to accurately adjust an elevation angle, an azimuth angle, and a polarization angle. In general, the elevation angle and the azimuth angle are adjusted by an adjustment mechanism of a mount for mounting a parabolic antenna. However, the polarization angle is
In order to use the parabolic antenna mount, the antenna body must be adjusted in elevation and azimuth and then rotated with respect to the satellite. Would.

[0003] In addition, since a large-sized antenna requires a great deal of work, at present, most antenna sets are designed to rotate a high-frequency receiving unit (converter) to adjust a polarization angle. Has become. FIG. 7 shows a conventional example, FIG. 7 (a) is a side view of a satellite broadcast receiving antenna device, and FIG. 7 (b) is an external view of a high-frequency receiving section of the antenna device. FIG. 7D is a detailed cross-sectional view before and after attachment of the high-frequency receiving unit and the clamp unit of the antenna device.

In FIG. 7A, which is a side view of a conventional antenna apparatus for receiving satellite broadcasting, an antenna apparatus 60 includes:
Parabolic antenna 61, high frequency receiver (converter) 6
2. An antenna arm 63 connecting the parabolic antenna 61 and the high frequency receiving unit 62, an antenna pole 64 supporting the parabolic antenna 61, an antenna mount 65 for adjusting the angle of the parabolic antenna 61, and an antenna supporting the antenna pole 64 and adjusting the angle. And a pole mount 66.

The high-frequency receiving section 62 includes a primary radiator (horn) 67 for receiving radio waves such as satellite broadcasts, and a converter main body 6.
8, and the high-frequency receiving unit 62 and the clamp unit 69 are fixed by fixing screws 70.
Further, the clamp unit 69 and the antenna arm 63 are connected and fixed by a connection fixing screw 71. Reference numeral 72 denotes a cable for supplying a signal from the high-frequency receiving unit 62 and for supplying power.

The elevation angle of the parabolic antenna 61 is adjusted with the fixing screw 76 loosened. After the adjustment, the fixing screw 76 is tightened and fixed. Next, adjustment of linear polarization (horizontal polarization, vertical polarization) by rotation of the primary radiator (horn) 67 on the central axis 67a of the primary radiator (horn) is as follows.
The fixing screw 70 is loosened, and after adjustment, the fixing screw 70 is tightened and fixed. B- of FIG.
FIGS. 7C and 7D are cross-sectional views of the structure taken along the line B ′.

FIG. 7 (c) is a sectional view of the structure before tightening. The clamp unit 69 is a lower clamp unit 69.
a and an upper clamp unit 69b. In FIG. 7C, on the lower clamp unit 69a,
With the converter waveguide section 74 placed thereon and the upper clamp unit 69b lightly placed, the polarization angle is adjusted by rotation of the primary radiator (horn) on the central axis 67a, and the fixing screw 70 is inserted. The fixing nut 73 is rotated and fixed.

FIG. 7D is a cross-sectional view of the structure after tightening. 69a is a lower clamp unit, 69b is an upper clamp unit, 70 is a fixing screw, 73 is a fixing nut, 74 is a converter waveguide section, Reference numeral 75 denotes an arrow indicating a rotation direction by adjustment.

[0009]

However, the conventional antenna device has the following problems. In FIG. 7 of the conventional example, the converter waveguide 74
, The converter main body 68 including the primary radiator (horn) 67 becomes large, and the cost of material naturally increases in terms of cost. In addition, since the converter waveguide portion 74 becomes long, the structure of the mold becomes complicated and large, and various problems tend to occur at the time of molding, and the number of products obtained from one mold is small. There was a problem of becoming. In addition, this has been a factor that hinders miniaturization of the antenna device and consequent miniaturization of the converter.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has a structure in which a converter body and a primary radiator (horn) are integrated to reduce the size, and a mounting structure of a clamp unit and a high-frequency receiving unit. Is an improvement.

[0011]

An antenna device according to a first aspect of the present invention comprises at least a parabolic antenna, a high-frequency receiving section, an antenna arm connecting the parabolic antenna to the high-frequency receiving section, and connecting the antenna arm to the high-frequency receiving section. An antenna device comprising a clamp unit, wherein the high-frequency receiving unit has a primary radiator (horn), and is a mounting between the high-frequency receiving unit and the clamp unit. One mounting surface is a concave cylindrical surface, and the other mounting is The surface is a convex cylindrical surface, and the concave cylindrical surface and the convex cylindrical surface are fitted with concave and convex to be attached.

The antenna device according to a second aspect of the present invention is characterized in that the concave cylindrical surface is provided with a long hole having a length in the same direction as the minor diameter direction of the high-frequency receiving section. .

According to a third aspect of the present invention, in the antenna device, a concave groove is formed on a concave cylindrical surface of one mounting surface, and a convex rib is formed on a convex cylindrical surface of the other mounting surface. And the convex ribs are fitted to each other in an uneven manner.

In the antenna device according to a fourth aspect of the present invention, the center axis of the mounting surface of the convex cylindrical surface or the concave cylindrical surface provided in the high frequency receiving unit is the same as that of the primary radiator (horn) of the high frequency receiving unit. It is characterized by being orthogonal to the center line.

Further, the antenna device according to a fifth aspect of the present invention is characterized in that a short-axis boss which is loosely fitted near one central axis of the concave cylindrical surface or the convex cylindrical surface is provided. .

The antenna device according to a sixth aspect of the present invention is characterized in that a resin or rubber spacer is interposed between the concave cylindrical surface and the convex cylindrical surface so as to be fitted and recessed. It is assumed that.

Further, in the antenna device according to a seventh aspect of the present invention, when the concave cylindrical surface and the convex cylindrical surface are fitted to each other in a concave and convex manner, a fixing screw is used and a conical shape having at least a spring property. Special washer or
It is characterized in that a special spacer is used in which one surface is flat and the other surface is concave cylindrical or convex cylindrical.

[0018]

FIG. 1 to FIG. 6 are diagrams relating to an embodiment of the present invention. FIG. 1 is a diagram relating to an antenna device according to an embodiment of the present invention, and FIG. FIG. 1 is a side view of a satellite broadcast receiving antenna device, and FIG.
(B) is an external view of a high-frequency receiving unit of the antenna device.

In FIG. 1A, an antenna device 10
Are a parabolic antenna 11, a high-frequency receiving unit 12, an antenna arm 13 connecting the parabolic antenna 11 and the high-frequency receiving unit 12, an antenna pole 14 supporting the parabolic antenna 11, an antenna mount 15 for adjusting the angle of the parabolic antenna 11, an antenna pole And an antenna pole mount 16 for supporting and adjusting the angle. The high-frequency receiving unit 12 is fitted to the fixed mounting unit of the clamp unit 20 and has a structure capable of rotating right and left around a central axis 17a of a horn of a primary radiator (horn) 17.

The method of fixing the high-frequency receiving section 12 and the clamp unit will be described in detail with reference to FIG. The high-frequency receiving unit 12 includes a primary radiator (horn) 17 for receiving radio waves such as satellite broadcasts and a converter body 18 formed of a cabinet 19.
The high-frequency receiving unit 12 and the antenna arm 13 are connected by a clamp unit 20 and fixed by fixing screws 21. Reference numeral 22 denotes a cable for signal and power supply from the high-frequency receiving unit 12, and reference numeral 23 denotes a screw for connecting and fixing the antenna arm 13 and the clamp unit 20.

FIG. 1B is an external view of the high-frequency receiving unit 12, wherein 17 is a primary radiator (horn), 20 is a clamp unit, 21 is a cabinet, 22 is a cable, 23 is an antenna arm 13 and a clamp unit 20. This is a screw for connecting and fixing.

FIG. 2 is a detailed explanatory view of a clamp unit 20 for connecting the high-frequency receiving section 12 and the antenna arm 13 of the antenna device according to one embodiment of the present invention, and FIG. High-frequency receiver 12 showing the state of
FIG. 2B is a structural sectional view in the longitudinal direction of FIG.
2A is a structural cross-sectional view taken along line AA ′, FIG. 2C is a structural cross-sectional view in a longitudinal direction of the high-frequency receiving unit 12 showing a state after fixing, and FIG. FIG. 3C is a structural sectional view taken along line AA ′ of FIG.

In FIG. 2A, which is a longitudinal sectional view of the high-frequency receiving unit 12, 17 is a primary radiator (horn), 18 is a converter body, 19 is a cabinet,
0 is a clamp unit, 21 is a fixing screw, and 22 is a cable.

Further, the convex cylindrical mounting surface 24 of the high-frequency receiving section 12 is fitted with a concave cylindrical mounting surface 25 provided at the tip of the clamp unit 20, and the fixing screw 21 is fixed.
Through a special washer 26 having a conical shape and having a spring property, passing through a special spacer 27 having a flat surface on one side and a concave cylindrical surface on the other side, and into a long hole 31,
Through a resin or rubber spacer 28, the inner wall is tapped with a short-axis boss 30 that is loosely fitted and has a structure to be fastened. Reference numeral 31 denotes a long hole, and the short axis boss 30 at the mounting surface 24 of the high-frequency receiving unit 12 having a convex cylindrical shape.
2 (see FIG. 2B) is inserted into the long hole 31 and has a function of rotating and sliding in the short direction of the high-frequency receiving unit 12.

A concave groove 32 is provided on the convex cylindrical mounting surface 24 of the high-frequency receiving section 12. On the other hand, there is a convex rib 33 provided near a concave cylindrical mounting surface 25 provided at the tip of the clamp unit 20,
It has a structure in which the concave groove 32 and the convex rib 33 are fitted.

The convex cylindrical mounting surface 24 of the high-frequency receiving section 12 is located substantially at the center of the high-frequency receiving section 12, and the fixing screw 21 is mounted on an axis near the position of the center of gravity. The axis of the fixing screw 21 can be used as the horizontal rotation axis of the high frequency receiving unit 12 without tilting to one side.

FIG. 2B is a sectional view taken along the line AA 'of FIG. 2A, wherein 18 is a converter body, 19 is a cabinet, 20 is a clamp unit, 21 is a fixing screw,
It is. Further, the convex cylindrical mounting surface 24 of the high-frequency receiving unit 12 is fitted with a concave cylindrical mounting surface 25 provided at the tip of the clamp unit 20, and the fixing screw 21 is
Through a special washer 26 having a conical shape and having a spring property, and further passing through a special spacer 27 having a flat surface on one side and a concave cylindrical surface on the other surface, and put into a long hole 31, resin or rubber. Through a spacer 28 made of stainless steel, and fastened to a short-axis boss 30 that is loosely fitted and has a tapping 29 applied to the inner wall. Reference numeral 31 denotes a long hole, which is formed around a central axis 17 a of the primary radiator (horn) 17.
In the range of 1, the structure can be rotated left and right.

A short axis boss 30 at the convex cylindrical mounting surface 24 of the high-frequency receiving section 12 is inserted into the long hole 31 to rotate and slide in the short direction of the high-frequency receiving section 12. I have. Further, reference numeral 32 denotes a concave groove, which is provided on the mounting surface 24 of the high-frequency receiving unit 12 having a convex cylindrical surface. On the other hand, a convex rib 33 is provided near the concave cylindrical mounting surface 25 provided at the tip of the clamp unit 20, and the concave groove 32 is provided.
And the convex rib 33 are fitted. Due to the fitting structure of the concave groove 32 and the convex rib 33, when the high-frequency receiving unit 12 is rotated about the central axis 17a of the primary radiator (horn) 17, it does not shift back and forth or rattle.
It functions to rotate accurately on the central axis.

By adopting the structure described in detail in FIG. 2B for the antenna device, by fixing the rotation with the fixing screw 21 after adjusting the rotation, a fixing method capable of responding to a change in temperature or a change in environmental conditions. Can be obtained.

Further, a spacer 28 made of resin or rubber is
By interposing between the convex cylindrical mounting surface 24 of the high frequency receiving unit 12 and the concave cylindrical mounting surface 25 provided at the tip of the clamp unit 20, the antenna arm 1
3 (see FIG. 1A) does not directly transmit to the high frequency receiver 12.

FIG. 2C is a longitudinal sectional view of the high-frequency receiving unit 12 showing a state after fixing, in which 17 is a primary radiator (horn), 18 is a converter main body, 19 is a cabinet, and 20 is a clamp. Unit, 21 is a fixing screw,
22 is a cable. As described in detail with reference to FIG. 2A, the high-frequency receiving unit 12 is adjusted and fixed to the clamp unit 20 by tightening the fixing screw 21. 26 is a special washer having a conical shape and having a spring property, 27 is a special spacer having a flat surface on one side and a concave cylindrical surface on the other side, 30 is a short axis boss to be loosely fitted, and 33 is a convex rib. It is.

FIG. 2D is a sectional view taken along the line AA 'of FIG. 2C, wherein 18 is a converter body, 19 is a cabinet, 20 is a clamp unit, 21 is a fixing screw,
It is. 24 is a convex cylindrical mounting surface, 25 is a concave cylindrical mounting surface, 26 is a special washer, 27 is a special spacer, 28 is a spacer (not shown), and 30 is a short axis boss.

As shown in FIG. 2D, the convex cylindrical mounting surface 24 of the high-frequency receiver 12 and the clamp unit 2
The fitting surface 25 is fitted to the concave cylindrical mounting surface 25 provided at the leading end of the "0", and both are securely fixed. Further, the convex rib 33 provided in the vicinity of the concave cylindrical mounting surface 25 is fitted with the concave groove 32 provided in the vicinity of the convex cylindrical mounting surface 24, and becomes a unitary and secure fixing structure. It has become.

FIG. 3 is an explanatory view of an antenna device according to another embodiment of the present invention.
3 is a diagram corresponding to a structural cross-sectional view taken along line AA ′ of FIG.
FIG. 8 is a diagram for explaining a state of rotation adjustment around the left side, and a diagram for explaining a state of right and left rotation in a range of a long hole 31 provided in a concave cylindrical mounting surface 25 at a tip of a clamp unit 20. . FIG. 3A is a structural cross-sectional view illustrating a state of rotating to the right, FIG. 3B is a structural cross-sectional view illustrating a state of no rotation, and FIG. 3C is a state of rotating to the left. FIG. 2 is a structural cross-sectional view for explaining.

FIG. 3A will be described as a representative example. FIG.
In (a), 17a is a central axis of a primary radiator (horn) 17, 18 is a converter main body, 19 is a cabinet,
19a and 19b are openings at the lower part of the cabinet 19;
Reference numeral 20 denotes a clamp unit, reference numeral 21 denotes a fixing screw, and reference numeral 35 denotes an arrow indicating a rotating direction to the right. The fixing screw 21
Through a special washer 26 having a conical shape and having a spring property, a special spacer 27 having a flat surface on one side and a concave cylindrical surface on the other side, a long hole 31, and a spacer 28 made of resin or rubber, And a short-axis boss 30 to which a tapping 29 is applied and which is loosely fitted. Further, the convex cylindrical mounting surface 2 of the high-frequency receiving unit 12
The primary radiator (horn) 4 is fitted with a concave cylindrical mounting surface 25 provided at the tip of the clamp unit 20 and slides on the concave / convex cylindrical fitting surface to rotate.
Rotation adjustment is performed about the center axis 17a of the X.17, and optimal adjustment is performed on the polarization plane (vertical polarization plane, horizontal polarization plane) of the received radio wave. In FIG. 3 (c), reference numeral 36 denotes an arrow indicating the direction of rotation to the left.

FIG. 4 is an explanatory diagram relating to an antenna device according to another embodiment of the present invention.
FIG. 10 is a diagram corresponding to a structural cross-sectional view taken along line AA ′ of FIG. 12, in which the fitting surface on the high-frequency receiving unit 37 side is a concave cylindrical mounting surface 40 in coupling the high-frequency receiving unit and the clamp unit of the antenna device. This is a modification of the antenna device according to the embodiment described in FIG. 2 in which the fitting surface of one clamp unit 20 is configured as a mounting surface 38 having a convex cylindrical shape. FIG. 4A is a vertical structural sectional view of the high-frequency receiving unit 37 showing a state before fixing, and FIG. 4B is a vertical structural sectional view of the high-frequency receiving unit 37 showing a state after fixing. is there.

In FIG. 4A, reference numeral 18 denotes a converter main body, 19 denotes a cabinet, 21 denotes fixing screws, and 41 denotes a clamp unit. The concave cylindrical mounting surface 40 of the high-frequency receiving unit 37 is fitted via a resin or rubber spacer 39 with a convex cylindrical mounting surface 38 provided at the tip of the clamp unit 41, and fixing screws are provided. 21 is a special washer 26 having a conical shape and having a spring property.
And through a special spacer 42 having a flat surface on one side and a convex cylindrical surface on the other side, into the long hole 43, and a free-fit short axis boss 30 with a tapping 29 applied to the inner wall. It is a structure to tighten. FIG. 4B is a vertical structural cross-sectional view of the high-frequency receiving unit 37 showing a state after fixing. As described above, by adopting the structure of FIG. 4, the high-frequency receiving unit can be further thinned and downsized.

FIG. 5 is an explanatory diagram relating to an antenna device according to another embodiment of the present invention.
FIG. 9 is a view corresponding to a structural cross-sectional view taken along line AA ′ of FIG. The fixing screw 45 is directly fixed, is fitted to the concave cylindrical mounting surface 25 of the fitting surface of the one clamp unit 20, and is constituted by the tightening nut 46. It is a modification of the antenna device according to the embodiment. FIG. 5A is a vertical structural cross-sectional view of the high-frequency receiving unit 44 showing a state before fixing.
(B) is a vertical structural sectional view of the high-frequency receiving unit 44 showing a state after fixing.

In FIG. 5A and FIG.
Is a special washer having a conical shape and having a spring property, 27 is a special spacer having one surface flat and the other surface being a concave cylindrical surface, 31 is a long hole, 32 is a concave groove, and 33 is a convex rib. By the fitting of the concave groove 32 and the convex rib 33, the high frequency receiving unit 44 and the clamp unit 20 have a fixing function of preventing rotation.

By adopting the configuration shown in FIG. 5, the fixing screw 45 is directly fixed to the convex cylindrical mounting surface 24 of the fitting surface on the high frequency receiving unit 44 side. Without post-processing, the processing cost associated with mounting can be reduced.

FIG. 6 is an explanatory diagram relating to an antenna device according to another embodiment of the present invention.
FIG. 9 is a view corresponding to a structural cross-sectional view taken along line AA ′ of FIG. 10, in which a fitting surface on the high-frequency receiving unit 47 side is a concave cylindrical mounting surface 40 in coupling the high-frequency receiving unit and the clamp unit of the antenna device. The fixing surface of the one clamp unit 20 is a convex cylindrical mounting surface 38, and the fixing screw 45 is directly fixed to the concave cylindrical mounting surface 40 of the high-frequency receiving unit 47 side, A modification of the antenna device according to the embodiment described in FIG. 2 described above, which is configured by fitting with the convex cylindrical mounting surface 38 of the fitting surface of one clamp unit 41 and the fastening nut 46. It is an example. FIG. 6 (a)
FIG. 6B is a vertical structural sectional view of the high-frequency receiving unit 47 showing a state before fixing, and FIG. 6B is a vertical structural sectional view of the high-frequency receiving unit 47 showing a state after fixing.

In FIG. 6A and FIG.
Is a special washer having a conical shape and having a spring property, 42 is a special spacer having a flat surface on one side and a convex cylindrical surface on the other side, and 43 is a long hole.

As described above, by adopting the structure of FIG. 6, the effects described with reference to FIGS. 4 and 5 can both be realized, and the high-frequency receiving section can be further thinned and downsized. Further, the machining cost for mounting can be reduced without post-processing the screw holes for fixing.

[0044]

As described above, according to the antenna device of the first aspect of the present invention, at least the parabolic antenna,
An antenna device comprising a high-frequency receiving unit, an antenna arm connecting the parabolic antenna to the high-frequency receiving unit, and a clamp unit connecting the antenna arm and the high-frequency receiving unit, wherein the high-frequency receiving unit has a primary radiator (horn); Mounting the high-frequency receiving unit and the clamp unit, wherein one mounting surface is a concave cylindrical surface, the other mounting surface is a convex cylindrical surface, and the concave cylindrical surface and the convex cylindrical surface are fitted by asperity fitting. It is characterized by the following. By this, it is possible to manufacture a high-frequency receiving unit having a rotation adjusting function and a clamp unit only by forming a fitting portion of an uneven surface having a substantially semicircular shape, and a cylindrical portion which was necessary in the conventional example becomes unnecessary, The size and cost can be reduced.

According to the antenna device of the second aspect of the present invention, the concave cylindrical surface is provided with a long hole having a length in the same direction as the minor diameter direction of the high-frequency receiving portion. Wherein the short axis boss fits into the long hole,
The structure can be fitted and rotated and slid, preventing rattling in the longitudinal direction of the high frequency receiving unit, and providing a structure in which the fixing screw of the high frequency receiving unit can be easily attached.

According to the antenna device of the third aspect of the present invention, the concave groove is formed on the concave cylindrical surface of the one mounting surface.
A convex rib is formed on the convex cylindrical surface of the other mounting surface, and the concave groove and the convex rib are fitted with concave and convex so as to be mounted. In addition to being able to be fixed without shifting or rattling, it is possible to improve the adjustment accuracy of rotational sliding adjustment.

Further, according to the antenna device of the fourth aspect of the present invention, the central axis of the mounting surface of the convex cylindrical surface or the concave cylindrical surface provided in the high frequency receiving unit is a primary radiator (horn) of the high frequency receiving unit. ) Is orthogonal to the central axis, and the primary radiator (horn) can be rotationally slid and adjusted on the central axis to improve the accuracy of accurate polarization angle adjustment. In the conventional example, the positional relationship between the antenna and the primary radiator (horn) often deviates from its focal position due to rotation.

According to the antenna device of the fifth aspect of the present invention, a short-axis boss is provided near the central axis of one of the concave cylindrical surface and the convex cylindrical surface. With the structure in which the short axis boss fits into the long hole, the high frequency receiving section can be fixed without being displaced or rattled in the longitudinal direction, and the adjustment accuracy of rotational sliding adjustment can be improved. Also, since the number of threaded portions of the screw holes can be increased, a spare screw hole can be provided,
Screw fools can be prevented.

According to the antenna apparatus of the sixth aspect of the present invention, the concave and convex cylindrical surfaces are fitted to each other with a resin or rubber spacer interposed between the concave cylindrical surface and the convex cylindrical surface. The spacer made of resin or rubber absorbs and disperses the vibration from the antenna arm and the clamp unit, and can reduce the vibration transmitted to the high-frequency receiving unit. In addition, the interposition of the resin or rubber spacer can prevent the uneven fitting surface from shifting or slipping.

Further, according to the antenna device of the present invention, when the concave cylindrical surface and the convex cylindrical surface are fitted to each other with concave and convex, a fixing screw is used, and at least a spring property is provided. It is characterized by using a conical special washer or a special spacer having a flat surface on one side and a concave or convex cylindrical surface on the other side. By adopting such a structure, the tightening force can be evenly distributed over a wider area by pressing on the surface instead of local contact only with the screw bottom, so that loosened screws and parts wear can be reduced. Can be prevented.

[Brief description of the drawings]

1A and 1B are diagrams illustrating an antenna device according to an embodiment of the present invention, wherein FIG. 1A is a side view of a satellite broadcast receiving antenna device, and FIG. 1B is an external view of a high-frequency receiving unit of the antenna device. is there.

FIG. 2 is a detailed explanatory view of a clamp unit 20 for connecting the high-frequency receiving unit 12 and the antenna arm 13 of the antenna device according to one embodiment of the present invention, and FIG. FIG. 2B is a structural cross-sectional view of the receiving unit 12 in a longitudinal direction, FIG. 2B is a structural cross-sectional view taken along line AA ′ of FIG. 2A, and FIG. FIG. 2 is a structural cross-sectional view in a longitudinal direction, and FIG.
FIG. 3C is a structural sectional view taken along line AA ′ of FIG.

3A and 3B are explanatory views of an antenna device according to another embodiment of the present invention, in which FIG. 3A is a structural cross-sectional view illustrating a state in which the antenna device rotates to the right, and FIG. It is a structural sectional view explaining, and (c) is a structural sectional view explaining a mode of rotating to the left.

4A and 4B are explanatory views of an antenna device according to another embodiment of the present invention, and FIG. 4A is a vertical structural cross-sectional view of a high-frequency receiving unit 37 showing a state before fixing.
(B) is a vertical structural cross-sectional view of the high-frequency receiving unit 37 showing a state after fixing.

5A and 5B are explanatory views of an antenna device according to another embodiment of the present invention, and FIG. 5A is a vertical structural cross-sectional view of a high-frequency receiving unit 44 showing a state before fixing.
(B) is a vertical structural sectional view of the high-frequency receiving unit 44 showing a state after fixing.

FIG. 6 is an explanatory view of an antenna device according to another embodiment of the present invention, in which (a) is a vertical structural cross-sectional view of a high-frequency receiving unit 47 showing a state before being fixed;
(B) is a vertical structural sectional view of the high-frequency receiving unit 47 showing a state after fixing.

FIG. 7 is a conventional satellite broadcast receiving antenna device,
(A) is a side view of the satellite broadcast receiving antenna device,
(B) is an external view of a high-frequency receiving unit of the antenna device,
(C) is a structural sectional view before fastening, and (d) is a structural sectional view after fastening.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Antenna device 11 Parabolic antenna 12 High frequency receiving part 13 Antenna arm 14 Antenna pole 15 Antenna mount 16 Antenna pole mount 17 Primary radiator (horn) 17a Central axis of primary radiator (horn) 18 Converter body 19 Cabinet 20 Clamp unit 21 Fixed Screw for connecting 22 Cable 23 Screw for connecting and fixing the antenna arm 13 and the clamp unit 20 24 Convex cylindrical mounting surface of the high frequency receiving unit 12 25 Concave cylindrical mounting surface provided at the tip of the clamp unit 20 26 Conical A special washer having a shape and a spring property 27 A special spacer having a flat surface on one side and a concave cylindrical surface on the other side 28 A spacer made of resin or rubber 29 Tapping 30 Short bosses for loose fitting 31 Long Hole 32 Groove 33 Convex rib 35 Arrow indicating the direction of rotation to the right 36 Arrow indicating the direction of rotation to the left 37 Concave cylindrical mounting surface on the high frequency receiving unit 37 side 38 Convex cylindrical mounting surface of the clamp unit 20 39 Resin or rubber Spacer 40 made of a concave cylindrical surface on the high-frequency receiving unit 37 side 41 Clamp unit 42 Special spacer 43 in which one surface is flat and the other surface is a convex cylindrical surface 43 Long hole 44 Convex on the high frequency receiving unit 44 side Cylindrical mounting surface 45 Fixing screw 46 Tightening nut 47 High frequency receiver

Claims (7)

[Claims] 1. An antenna device comprising at least a parabolic antenna, a high-frequency receiving unit, an antenna arm connecting the parabolic antenna to the high-frequency receiving unit, and a clamp unit connecting the antenna arm and the high-frequency receiving unit, wherein the high-frequency receiving unit is a primary radiator. A horn, and mounting the high-frequency receiving unit and the clamp unit, wherein one of the mounting surfaces is a concave cylindrical surface, the other is a convex cylindrical surface, and the concave cylindrical surface and the convex cylindrical surface are An antenna device comprising: 2. The antenna device according to claim 1, wherein
An antenna device, wherein a long hole having a length is provided in the concave cylindrical surface in the same direction as the minor diameter direction of the high-frequency receiving unit. 3. The antenna device according to claim 1, wherein
A concave groove is formed on a concave cylindrical surface of one mounting surface, and a convex rib is formed on a convex cylindrical surface of the other mounting surface, and the concave groove and the convex rib are fitted to each other by concave and convex fitting. Antenna device. 4. The antenna device according to claim 1, wherein
An antenna device, wherein a central axis of a mounting surface of a convex cylindrical surface or a concave cylindrical surface provided in the high-frequency receiving unit is orthogonal to a center line of a primary radiator (horn) of the high-frequency receiving unit. 5. The antenna device according to claim 1, wherein
An antenna device, comprising: a short-axis boss that is loosely fitted near one central axis of the concave cylindrical surface or the convex cylindrical surface. 6. The antenna device according to claim 1, wherein
An antenna device characterized in that a resin or rubber spacer is interposed between the concave cylindrical surface and the convex cylindrical surface so as to be fitted in a concave and convex manner. 7. The antenna device according to claim 1, wherein
When the concave cylindrical surface and the convex cylindrical surface are fitted with concave and convex fittings, a fixing screw is used, and a conical special washer having at least a spring property, or one surface is flat and the other surface is a concave cylinder. An antenna device using a special spacer having a planar or convex cylindrical surface.