JP3403907B2 - Converter for satellite reception - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a satellite receiver converter integrally formed with a primary radiator for receiving satellite broadcasts and satellite communications.

[0002]

2. Description of the Related Art In a small-aperture multi-beam antenna for narrow separation in which two or more satellites located at relatively narrow intervals are received by one reflecting mirror, the interval between the primary radiators corresponding to each satellite is small. In a narrow and normal arrangement using flare horns, there is a problem that the flare horns are in contact with each other and structurally the primary radiator cannot be constructed. For example, 4 in the 12 GHz band
If the primary radiator of a 45 cmφ dual beam antenna system that receives two satellites spaced apart is configured, the horn spacing is about 25 mm. If the primary radiator of this antenna is composed of a normal flare horn, its aperture diameter is about 3
It becomes 0 mm and cannot be structurally constructed.

When an integrated converter is formed by a plurality of primary radiators, a substrate printing probe 2 is formed on the same substrate 1 as shown in FIG. 5, and all other circuits are also formed on the substrate 1. It is provided in. The substrate printing probe 2 is
It is composed of a horizontal polarization probe 2a and a vertical polarization probe 2b, and each has a plurality of, for example, two primary radiator openings 3.
It is provided in the power supply part of. The signals extracted from the horizontal polarization probe 2a and the vertical polarization probe 2b are amplified by the high frequency amplifiers 3a and 3b and then selected by the horizontal / vertical changeover switches 4a and 4b. The signal selected by the horizontal / vertical selector switch 4 a is further selected by the satellite selector switch 5, amplified by the high frequency amplifier 6, and input to the frequency converter 7. In this frequency converter 7,
The oscillation output of the local oscillator 8 is input. Frequency converter 7
Outputs the frequency signal of the difference between the received signal from the high frequency amplifier 6 and the signal from the local oscillator 8 as an intermediate frequency signal. The signal output from the frequency converter 7 is amplified by the intermediate frequency signal amplifier 9 and taken out from the terminal 10.

[0004]

When a plurality of satellites are received by the above-mentioned conventional satellite receiving converter, an axis horizontal to the earth in each region, the orbital angle of the desired multiple satellites, and the polarization angle of the satellites. If the board printing probe 2 is set so as to match with each other, it becomes a converter dedicated to a plurality of satellites that receive it, and when manufacturing a converter compatible with all satellites, the board cannot be shared at all, resulting in extremely poor productivity. The cost will increase.

The present invention has been made in order to solve the above-mentioned problems, and even when receiving a plurality of satellites, it is possible to share a substrate, which can improve productivity and reduce costs. The purpose is to provide a converter.

[0006]

SUMMARY OF THE INVENTION A satellite receiving converter according to the present invention uses a small aperture multi-beam antenna for narrow separation of radio waves transmitted from two or more satellites located close to each other. Integral primary radiator aperture and converter consisting of two or more circular waveguides receiving
In a satellite receiving converter in which a circuit board for data is integrated, the converter circuit section provided on the circuit board and the plurality of primary radiator openings are respectively rotatable and independent of the circuit board. And a substrate printing probe provided on each of these substrate printing probe substrates and connected to the converter circuit unit, the rotation angle of the substrate printing probe substrate It is characterized in that it can be set according to the target satellite.

The board printing probe is composed of a horizontal polarization probe and a vertical polarization probe, and the converter circuit section is a first switching means for switching between the horizontal polarization probe and the vertical polarization probe and a plurality of board prints. A second switching means for switching the probe is provided.

The present invention is also directed to two or more circular guides for receiving radio waves transmitted from two or more satellites located close to each other by a small aperture multi-beam antenna for narrow separation. In a satellite receiver converter in which a primary radiator opening formed of a wave tube and a converter substrate are integrated, a converter circuit provided on the substrate is provided.
A circle for receiving the radio waves transmitted from the roadside and one satellite above
A first substrate-printed probe on the substrate corresponding to the primary radiator opening of the profiled waveguide, and from the other satellite
And corresponds to the primary radiator apertures of the circular waveguide for receiving radio waves transmitted, and a substrate for a substrate printing probe provided rotatably independently of the above substrate, for the substrate printed probe A second substrate printing probe provided on the substrate;
It is characterized in that it comprises switching means provided in the converter circuit section for switching between the first substrate printing probe and the second substrate printing probe.

With the above arrangement, it is possible to easily match the respective polarization angles of a plurality of satellites with the tilt angle which is the angle difference between the axis horizontal to the earth and the satellite orbital axis, and therefore two adjacent satellites. Even if each polarization angle of the above changes or the satellite to be received changes, it is possible to easily adjust the tilt angle as the converter and reduce the cost by sharing the circuit.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. (First Embodiment) FIGS. 1 (a) and 1 (b) show the overall structure of a satellite receiving converter according to an embodiment of the present invention, in which (a) is a front view and (b) is a side view. Is.

In FIGS. 1 (a) and 1 (b), 11 is a case containing a converter main body, which is attached to a reflecting mirror (not shown) via an arm 12. An angle adjusting mechanism 13 is provided on the converter supporting portion by the arm 12, and the angle of attaching the converter can be adjusted by the elongated hole 14 and the inclination angle adjusting screw 15. The primary radiator 16 is attached to one surface of the converter case 11, that is, the surface facing the reflecting mirror.

The primary radiator 16 has the structure shown in FIG.
It is configured as shown in (b). 2A is a front view of the primary radiator 16, and FIG. 2B is a sectional view taken along the line AA ′ of FIG.

In FIGS. 2A and 2B, 21a and 2a are provided.
Reference numeral 1b denotes a circular waveguide having a predetermined length, which is integrally provided with a space of several mm. A primary radiator opening is formed by the circular waveguides 21a and 21b. Then, a first choke 22a composed of a groove having a depth of about 1/4 wavelength is formed on the outer circumference of the circular waveguides 21a, 21b, and a second choke 22a similar to the first choke 22a is formed on the outer circumference thereof. Chalk 22
b is formed. In addition, the circular waveguides 21a, 21
The substrate 23 is arranged at the bottom of b. The printed wiring formed on the substrate 23 allows circular waveguides 21a and 21b to be formed.
A feeding point 24 is provided at the center of the bottom surface of the.
Further, the terminal end portion 25 is formed on the bottom surface portion of the primary radiator 16. The circular waveguides 21a and 21b and the terminal portion 25 are
For example, it is configured by using aluminum or the like.

The primary radiator 16 is, for example, 12 GHz.
When used as a primary radiator of a 45 cm dual beam antenna system that receives radio waves from two satellites separated by 4 ° in the band, the inner diameters of the circular waveguides 11a and 11b are 17.475.
mm, and the center interval is set to about 25 mm.

The converter circuit section shown in FIG. 3 is formed on the substrate 23. In the substrate 23, circular waveguides 21a and 21b, that is, a portion corresponding to the primary radiator opening is cut out in a substantially circular shape, and the cutout portion 30 is formed.
Substrate 31 for printing a substrate having a substantially circular shape on a and 30b
A and 31b are rotatably provided. The substrates 31a and 31b for a substrate printing probe are formed, for example, with their upper portions protruding outward, and arc-shaped grooves 32a and 32b are formed in the protruding portions.
Is provided. Then, in the grooves 32a and 32b, the substrates 31a and 31b for substrate printing probes are screwed into the screws 33.
It is fixed to the substrate 23 by a and 33b.
That is, by loosening the screws 33a and 33b, the substrates 31a and 31b for the substrate printing probe are formed into the grooves 32a and 32b.
The left and right can be rotated by the length of b. The substrates 31a and 31b for the substrate printing probe are fixed with screws 33a and 33b after adjusting the rotation angle.

Substrate 31a, 31 for the substrate printing probe
In b, the board printing probe 2 is formed at the feeding points of the circular waveguides 21a and 21b. The substrate printing probe 2 is
The probe 2a includes a horizontally polarized wave probe 2a and a vertically polarized wave probe 2b, which are connected to printed wiring on the substrate 23 side via lead wires 34a and 34b, respectively. In this case, for example, the wiring pattern on the substrate 23 side is set to the substrate 3 for the substrate printing probe.
1a and 31b are formed in an arc shape along the outer edges, and the wiring pattern position on the substrate 23 side closest to the horizontal polarization probe 2a and the vertical polarization probe 2b is connected to the lead wire 34.
If the connection is made with a and 34b, the lead wire 34
The a and 34b can be shortened, and the circuit characteristics can be improved. In addition, the wiring patterns of the horizontally polarized wave probe 2a and the vertically polarized wave probe 2b and the wiring pattern on the substrate 23 side may be pressed to directly connect the two.

The signals extracted from the horizontal polarization probe 2a and the vertical polarization probe 2b are amplified by the high frequency amplifiers 3a and 3b and then selected by the horizontal / vertical changeover switches 4a and 4b. The signal selected by the horizontal / vertical selector switch 4 a is further selected by the satellite selector switch 5, amplified by the high frequency amplifier 6, and input to the frequency converter 7. The oscillation output of the local oscillator 8 is input to the frequency converter 7. Frequency converter 7
Outputs the frequency signal of the difference between the received signal from the high frequency amplifier 6 and the signal from the local oscillator 8 as an intermediate frequency signal. The signal output from the frequency converter 7 is amplified by the intermediate frequency signal amplifier 9 and taken out from the terminal 10.

[0018] provided independently separately substrate printed probe substrate 31a, 31b and the substrate 23 as described above, by configuring so as to be freely adjust each of the rotation angles, the polarization of a plurality of satellites It can be easily adjusted to the angle and tilt angle that is the angle difference between the axis horizontal to the ground and the satellite orbit axis. Therefore, even if the polarization angles of the two adjacent satellites change or the satellites that receive it change, it is possible to easily adjust the tilt angle as a converter and reduce the cost by sharing the circuit. it can.

(Second Embodiment) Next, a second embodiment of the present invention will be described. FIG. 4 is a configuration diagram of a converter circuit unit according to the second embodiment of the present invention.

In the first embodiment, each circular waveguide 21
Substrate 31a for substrate printing probe corresponding to a and 21b,
31b is rotatably provided, and the board printing probe 2 is provided on the board 31a, 31b for board printing probe. In the second embodiment, the board printing probe 2 for receiving one satellite is provided. It is provided on a substrate 23 for a substrate printing probe, which is provided on the substrate 23 and one or more other satellite receiving probes are formed separately from the substrate 23.

In this embodiment, the angle adjusting mechanism 1 is applied to the substrate printing probe 2 fixedly provided on the substrate 23.
The board printing probe 2 provided on the board 31 for board printing probe, which is adjusted to receive the radio wave from the target satellite by 3, is rotated by rotating the board 31 for board printing probe. Adjust to receive radio waves.

Also in the second embodiment, as in the first embodiment, even when a plurality of satellites are received, the board can be shared, and the productivity can be improved and the cost can be reduced. .

[0023]

As described in detail above, according to the present invention, a plurality of substrates for a substrate printing probe are provided independently of the substrate on which the converter circuit section is formed, and the rotation angles of the substrates are adjusted arbitrarily. In addition, a board printing probe for receiving one satellite is provided on the same board as the converter circuit section, and one or more other satellite receiving probes are formed separately from the board. by providing the use substrate can be matched with each polarization angles of plural satellites, easily the inclination angle is the angle difference between the horizontal axis and the satellite orbit axis earth. Therefore, even if the polarization angles of the two adjacent satellites change or the satellites that receive it change, it is possible to easily adjust the tilt angle as a converter and reduce the cost by sharing the circuit. it can.

[Brief description of drawings]

FIG. 1A is a front view showing an external configuration of a satellite receiving converter according to the present invention, and FIG.

FIG. 2A is a front view of a primary radiator portion of a satellite receiving converter according to the present invention, and FIG. 2B is an A- of FIG. 2A.
A'sectional view.

FIG. 3 is a circuit configuration diagram of a satellite reception converter according to the first embodiment of the present invention.

FIG. 4 is a circuit configuration diagram of a satellite reception converter according to a second embodiment of the present invention.

FIG. 5 is a circuit configuration diagram of a conventional satellite receiving converter.

[Explanation of symbols]

1 substrate 2 Substrate printing probe 2a Horizontal polarization probe 2b Vertical polarization probe 4a, 4b Horizontal / vertical selector switch 5 Satellite selector switch 7 Frequency converter 8 Local oscillator 9 Intermediate frequency signal amplifier 11 cases 12 arms 13 Angle adjustment mechanism 14 long holes 15 Tilt angle adjusting screw 16 Primary radiator 21a, 21b circular waveguide 23 board 30a, 30b Notch 31, 31a, 31b Substrate for printed circuit board probe 32a, 32b groove 33a, 33b screws 34a, 34b Lead wire

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI H04B 1/18 H04B 1/18 J K (72) Inventor Koji Sakauchi 1406 Hasunuma, Omiya City, Saitama Prefecture Yagi Antenna Co., Ltd. Omiya Plant (56) References JP-A-8-242119 (JP, A) JP-A-7-231201 (JP, A) JP-A-4-329722 (JP, A) JP-A-6-53738 (JP, A) Actual Kaihei 6-85514 (JP, U)

Claims (5)

(57) [Claims] 1. A plurality of circular waveguides for receiving radio waves transmitted from two or more satellites located close to each other by a small beam multi-beam antenna for narrow separation. Monolithic primary radiator opening and converter
In a satellite receiving converter in which a circuit board for data is integrated, the converter circuit section provided on the circuit board and the plurality of primary radiator openings are respectively rotatable and independent of the circuit board. And a substrate printing probe provided on each of these substrate printing probe substrates and connected to the converter circuit unit, the rotation angle of the substrate printing probe substrate satellite receiving converter, characterized by being configured so as to be set to correspond to the satellite of interest. 2. The satellite receiving converter according to claim 1, wherein the substrate-printed probe comprises a horizontal polarization probe and a vertical polarization probe, and the converter circuit unit comprises the horizontal polarization probe and the vertical polarization probe. 1. A satellite receiving converter, comprising: a first switching means for switching a plurality of printed circuit boards and a second switching means for switching a plurality of substrate printing probes. 3. A plurality of circular waveguides for receiving radio waves transmitted from two or more satellites located close to each other by a small beam multi-beam antenna for narrow separation. Monolithic primary radiator opening and converter
In a satellite receiving converter in which a circuit board for a satellite is integrated, a converter circuit section provided on the circuit board and the one satellite
Be received in the first substrate printed probe provided corresponding on the substrate in the primary radiator apertures of the circular waveguide, the transmission radio wave from the other satellite for receiving the radio wave transmitted from the
Pairs to respond to the primary radiator apertures of the circular waveguide of the order, and a substrate for a substrate printing probe provided rotatably independently of the said substrate, first provided on the substrate for the substrate printed probe 2. A satellite receiving converter comprising: a second board printing probe; and a switching means provided in the converter circuit section for switching between the first board printing probe and the second board printing probe. 4. A plurality of circular waveguides for receiving radio waves transmitted from two or more satellites located close to each other by a small aperture multi-beam antenna for narrow separation. Monolithic primary radiator opening and converter
In a satellite receiver converter with an integrated circuit board for data transmission, a case in which the primary radiator is provided on the front surface and the converter body is built in, an arm supporting the case, and a supporting portion of the case by the arm. An angle adjustment mechanism that is provided to adjust the mounting angle of the case with respect to the arm, and a coil provided in the case and provided on the board.
Inverter circuit section , and a board for printing a board corresponding to each of the plurality of primary radiator openings, and rotatably provided independently of the board, and a board for each board printing probe. It is, comprising a substrate printed probe which is connected to the converter circuit unit, a satellite receiver, characterized by being configured so as to be set corresponding to the satellite for the purpose of rotational angle of the substrate for a substrate printed probe converter. 5. A plurality of circular waveguides for receiving radio waves transmitted from two or more satellites located close to each other by a small-diameter multi-beam antenna for narrow separation. Monolithic primary radiator opening and converter
In a satellite receiver converter with an integrated circuit board for data transmission, a case in which the primary radiator is provided on the front surface and the converter body is built in, an arm supporting the case, and a supporting portion of the case by the arm. An angle adjusting mechanism that is provided to adjust the mounting angle of the case with respect to the arm, a converter circuit section that is provided on the substrate, and a primary radiator opening of a circular waveguide for receiving radio waves transmitted from the one satellite. Corresponding to, the first board printing probe provided on the board and the radio waves transmitted from the other satellites are received.
And corresponds to the primary radiator apertures of the circular waveguide for signal,
And, a substrate for a substrate printing probe provided rotatably independently of the above substrate, a second substrate printed probe provided on the substrate for the substrate printed probe, provided in the converter circuit unit, the first Substrate printing probe and second
And a switching means for switching between the substrate printing probe and the substrate printing probe.