JPS59204A - Fabrication of array antenna - Google Patents

Abstract

PURPOSE:To obtain an antenna having a prescribed sectional shape, by providing a partition plate having sufficient thickness on the outermost side of a panel, so that larger force than required is not put at the time of connecting with other panel. CONSTITUTION:The second panel 9 has a slot 2 and a positioning hole 11. The first panel 10 has a power coupling port 4, a partition plate 5, the positioning hole 11 and a partition plate 12 whose outermost side is thick. In this state, when joining the second panel 9 and the first panal 10, they are joined closely by inserting a positioning pin 13 into the positioning hole 11, and after joined, a surplus part of the antenna opening part is removed, and the antenna opening part is constituted.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improved method of manufacturing an array antenna.

\First, we will explain the method for manufacturing the aperture of a conventional array antenna. Figure 1 is a diagram of the second panel constituting the conventional antenna aperture, Figure 2 is a diagram of the first panel constituting the conventional antenna aperture, and Figure 3 is a diagram of the conventional antenna aperture being joined. 111 is the second panel, (2) is the slot, and in FIG. 1, the shapes are omitted except for the two holes, which are numerous, and the 0 position is indicated by a 10. There is.

In Figure 2, (3) is the first panel, (4) is the power supply port, and (5) is the first panel.
) is a partition plate, (6) is a processed groove corresponding to a waveguide array, and in Fig. 3, (71 is for positioning and holding the first panel (3) and the second panel +11 when joining. (8)Vi is the joint between the first panel and the second panel.

Conventionally, the first panel (3) and the second panel (1) constituting the antenna opening were processed to the final required external dimensions, positioned using a jig (7), and the first panel ( 3)
The pipes of the first panel (3) and the second panel (1) were joined so that the joint part (8) of the second panel (1) was in close contact with each other to form an integrated structure, and the antenna opening was formed. 0 When joining the first panel (3) and second panel (1). 1st
panel (3) and #! The two panels (1) were aligned with each other using a jig (7). However, when welding is used for joining, the heat generated causes the first panel (31
The first and second panels (1) undergo thermal deformation, and due to the difference in shape of each panel, a shift occurs in their mutual positional relationship.

This positional misalignment can be suppressed by the frictional force between the jig (7) and each panel.The jig needs to be made large and heavy, and if the jig is insufficiently heavy, the first A misalignment occurs in the mutual positions of the panel (3) and the second panel (1), and the mutual positions of the slot (2) of the second panel (1) and the groove (6) of the first panel (3) are fixed. , the second panel (11 slots) (21 to the first panel (
3), the mutual positions of the feed ports (4) do not have a predetermined dimension, so the antenna has the disadvantage that a predetermined electrical performance as an array antenna cannot be obtained. When joining the first panel (3) and the second panel (1), it is necessary to bring the joint part (8) into close contact with the first panel (3) and the second panel (1).
1) was pressurized through a jig (7) so that the partition plate (5) had a thickness determined by the electrical specifications of the first panel (3). ) and the second panel (1) are weakly deformed in response to sufficient pressure to bring the joint (8) of the second panel (1) into close contact, and the first panel (3) and the second panel (11) are joined. The disadvantage is that the cross-sectional shape of the waveguide formed by this method does not have a predetermined cross-sectional shape, making it impossible to obtain the predetermined electrical performance of the play antenna.

This invention proposes a method of manufacturing an array antenna that improves these drawbacks.

Embodiments of the invention will be described below with reference to the drawings.

FIG. 4 is a section of the second panel according to the present invention, FIG. 5 is a diagram of the first panel according to the present invention, FIG. 6 is a diagram of the positioning pin according to the present invention, and FIG. 7 is a diagram during joining according to the present invention. This is a cross-sectional view. In Figure 4, (2) is a slot! In Figure 4, only the shape 2 is shown, and the other positions are indicated by marks. In Figure 5, (4) is the power supply port, (5)
is the partition V plate, and aa is the outermost partition plate of the first panel according to the present invention.

(6) Groove corresponding to the waveguide array, #! 4 and 5, it'i is a positioning hole according to the present invention, and in FIG. Nono (flannel partition - board, (8) is the joint between the first panel and the second panel.

The fin is the outermost partition plate of the first panel according to the present invention;
(II is a positioning pin inserted into the funnel (91) of the first panel and the second panel when joining them.

This invention is based on the slot (2) and positioning hole α shown in FIG.
υ and has external dimensions larger than the final external dimensions -) f
i 2nd tube panel (91, power supply port (41, partition r)
[(51.

Positioning hole a0. Partition plate with increased thickness on the outermost side (1
3. When joining the first panel member having a positioning hole (11
) and insert the positioning bottle 3 into the second slot (9).
and the first panel aIt- are joined in close contact with each other, and after joining, the excess portion of the antenna opening is removed to form the antenna opening.

Conventionally, the #81 panel (3) and the @2 flannel (1) were misaligned when they were joined, resulting in a failure to achieve the specified dimensions.However, according to the present invention, the first panel(
9) and panel a of sR2 by inserting not only the jig but also the positioning pin 0 into the positioning hole (1B) of the first panel (9) and second panel α1.
and the second panel Q (I is maintained so that after joining the groove (6) of the first panel (9) and the slot (2) of the second panel member and the first panel (9) Power supply port (4)
The relative position of the slot (2) of the second panel member and the second panel member has the advantage of being of a predetermined size.

Furthermore, conventionally, the partition V plate (5) is deformed when the first panel (3) and the second panel (1) are joined, and the partition V plate (5) is formed by the first panel (3) and the second panel (1). However, according to the present invention, there is a partition plate (13) with a sufficient thickness on the outermost side of the first panel 01, so that the cross-sectional shape of the waveguide cannot be set to a predetermined shape. When joining the first panel frame and the second panel (9), no more than necessary force is applied to the partition plate (5) that is not the outermost part of α1, so that the partition plate (5) of the first panel (II) The advantage is that the cross-sectional shape of the waveguide formed by the first panel 61 and the second panel (9) after bonding is not deformed and has a predetermined shape, and good electrical performance can be obtained. has.

As described above, in this invention, a thick partition V plate is provided on the outermost side, and a 1 m panel with positioning holes therein and a second panel are also made larger than the final dimensions.

Here, a hole is made in the part corresponding to the positioning hole of the first panel, and after the first panel and the second panel are joined, unnecessary parts are removed to create an antenna opening that has good electrical performance. A method for manufacturing an antenna is provided.

[Brief explanation of the drawing]

Figure 1 is a diagram of the conventional second panel, and Figure 2 is a diagram of the conventional first panel.
FIG. 3 is a cross-sectional view of the conventional antenna opening when joined, FIG. 4 is a diagram of the second panel according to the present invention,
FIG. 5 is a diagram of the first panel according to the present invention, FIG. 6 is a diagram of the positioning pin according to the present invention, FIG. 7 is a sectional view of the antenna opening when joined according to the present invention, and (1) is a diagram of the conventional (2) is the slot), +31Vi conventional first panel. (4) is the power supply port, (5) is the partition plate, (6) is the groove, (7
) is a jig. (8) is the joint, (9) is the view of the second panel according to the invention, tllti is the view of the first panel according to the invention, a
nFi is a positioning hole according to this invention, aa is a partition plate according to this invention, (11 is a positioning pin according to this invention 0 Identical or equivalent parts in the drawings are indicated by the same reference numerals 0 Agent Makoto Kuzuno - Figure 1 Figure 3'l Figure 6 Figure 7@

Claims (1)

[Claims] In a method of manufacturing an array antenna in which an antenna opening is formed by an array of waveguides, a first antenna having a feeding port for feeding radio waves to the opening and having a groove corresponding to the array of waveguides;
and a second panel having a slot) 1- for emitting the 'fIl wave from the aperture, and the #! The outermost partition plate of the first panel is made thicker than the final size and holes are provided there, and the second panel is also made larger than the final size and the number of holes in the outermost partition plate of the first panel is equivalent to nine holes. The first panel and the second panel are joined and integrated, and unnecessary parts of the first panel and the second panel are removed to match the final dimensions to form an antenna opening. A method of manufacturing a play antenna characterized by forming a part.