JPS58134510A - Short backfire array antenna - Google Patents

Abstract

PURPOSE:To obtain a thin short backfire array antenna which has high precision by printing die poles, feeders, and feeding circuits on the top and reverse sides of one dielectric plate. CONSTITUTION:The die poles 7a-7c, parallel two-wire lines 8a-8c, a microstrip line 9, and branch points B ane C are printed on the top and reverse surfaces of one dielectric plate 6. Small reflecting plates 4a-4c are fixed on the die poles 7a-7c by supporting dielectrics 10a-10c. Received currents from the 1st short backfire antenna consisting of a large reflecting plate 1a, side plate 2a, small reflecting plate 4a, and the die pole 7a and the 2nd and the 3rd antennas of similar constitution are flowed through the parallel two-wire lines 8a-8c and multiplexed at the branch points B and C on the microstrip line 9 to be outputted from a coaxial plug 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paperback fire array antenna constructed by arranging paperpack fire antennas in which a power feeder is printed, and its feeder circuit is printed.

Here, for convenience of explanation, a case will be described in which the number of seat pack fire antennas to be arranged is reduced to three.

First, a description will be given of a conventional sheet-back filter array antenna shown in Figure 1.

FIG. 1 is a structural diagram of a conventional seed pack fire array antenna. Summary 1B! ! Write If.

(1m), (lk), (1@) are large reflectors, (2
m), (2b), (2@) are side plates, (:b), (
311), (!l@) is Daipo J&', (4m)
, (4k).

(4・) is a small reflector, (5 turtle), (5k), (5@
) is coaxial-path.

The system is a power supply circuit. Dipole (3m), , (31
e)', (3@) is a four-axis machine W4. (5m), (5b
), (5@).

Large reflector (1m), side plate (1m), dipole (3m)
The small reflector (4a) constitutes the main sheet pack antenna, and the two remaining sheet packs
- The configuration of the fire antenna is also uniform.

It is necessary to connect this seed pack fire array antenna to the feeder circuit including the power combining circuit 11 provided at the rear of the seed pack fire array antenna's power feeding vertical line (Sm), (61+), (5e)ij antenna. As the number of five antennas increases, the number of coaxial lines increases, the space occupied by the feeder increases, and the overall depth of the antenna increases.Is this a disadvantage? had. Also.

As the frequency increases, the dimensions of the dipole decrease, so there are many dipoles! - It was difficult to manufacture accurately, and there was also a manufacturing drawback in that it was difficult to set the position of the dipole.

This invention aims to eliminate all these drawbacks.

It is constructed by printing a dipole, a feed line, and a feed circuit Yr on one dielectric plate.An embodiment of the present invention will be described below with reference to the drawings.

1m! FIG. 2 is a diagram showing the structural tube of the sheet pack fire array antenna according to the present invention. In Figure 2,
(lat, '(ib')", (lc) is a large reflector,
(26), (2b), (2e) are side plates, ('4m
), (4b), (4 pieces) are small reflective plates, (6) are dielectric plates, (7=')'t'' (7b), (We) are printed dipoles, (8m), (j^ −1, (8e
) is two printed parallel lines, (9) is a microstrip S path, (10 m).

(10b), (10・) are small reflector supporting dielectrics, a force is a coaxial plug, i, cFi branch point.

Printed dipole (7m) at 11g2WJ.

(7b), (7e), printed parallel two lines (8m),
(8b,), (8c).

Microstrip line (9) 0 branch point B, CFi 1 dielectric plate (6) JIK printed.

The small reflectors (4m), (4b), and (4e) are small reflectors with a low dielectric constant and a small yeast tangent.
Printed dipole (7) with (10b) and (10e)
m), (7b), (7s). Large reflector (1m), side plate (2m).

The radio waves received by the first paperback fire antenna, which is composed of a small reflector (4 m) and a printed dipole (7a), are transmitted from the printed dipole (7a) to the printed parallel wire (81). Converted to received current. The remaining second. Itg's signature backfire antenna is also printed parallel 2m (8'L (8C)).
'The received current flows into .

Each receive me-microstrip line: 1, 1
゜ Branch point B on (9), CT: synthesized, and its synthesized output IMm. 7.6im, □6° According to this method, printed dipole (7m),
(7b), (?@), Printed parallel two wires (8m) that are dipole feed lines, (8b), (8@)
Since the branch points B and C corresponding to the power combiner and the power combiner can be formed on one dielectric plate, there is an advantage that the overall depth of the antenna including the feeder circuit can be shortened. Further, since it is constructed by printing on the dielectric plate, there is an advantage that an elliptical or printed dipole can be made and its position can be set with a small difference in tolerance.

FIG. 3 is a diagram showing another embodiment according to the present invention, (4
m), (4b)', (4c) are small reflectors, (o)
d dielectric plate.

(7m), (7b), (7e) are printed dipoles, (8m).

(8b), (8c) are two printed parallel lines, (9)
is a microstrip line, Ql) is a coaxial plug, 0 side is a shared large reflector, Q is a shared side plate, and B and C are branch points.

The common large reflecting plate (b) and the common side plates (to) have the same effect as the large reflecting plate and side plates explained in FIG. Similarly to the antenna shown in FIG. 2, in the case of i, the overall size of the antenna is small, and a high-capacity fire array antenna with a size similar to that of the □ size device can be obtained.

Although the above description has been made for the case where the power feeder is a dipole, it can be carried out in exactly the same way even when a slot or loop tube is used. Also.

Although the shape of the small reflector is described as a circular plate, the same method can be applied to any shape such as a square plate or a rectangular plate, or to a case where the small reflector is printed on a metal dielectric substrate.

Furthermore, the same method can be implemented in the case where a circuit tube such as a converter is assembled in the feeder circuit on the dielectric substrate, or in the case where a phase shifter is printed and a function tube is provided to scan the main beam of the radiation pattern of the antenna.

As explained above, the present invention has a great effect in that it is easy to manufacture, has a primary radiator and feeder circuit with good machining accuracy, and can provide a shortened packed fire array antenna with a short overall antenna depth. be.

[Brief explanation of drawings]

Figure 1 is a structural diagram of a conventional seed pack fire array antenna, Figure 2 is a structural diagram of a seed pack fire array antenna according to the present invention, and Figure 3 is a structural diagram showing another embodiment of the present invention. It is. In the figure, (1m), (lb), (lc) are large reflective plates* (2m), (2b)e (2c) are side plates, (3
m), (3b), (3e) are dipoles, (4m)
* (4b) + (4*) is a small reflector, (5a)
, (5b), (5c) are coaxial lines, (6) are dielectric plates, (7m), (7b), (7e) are printed dipoles, (8m), (8b), (8e) are printed Two parallel lines, (9) is a microstrip line. (6) is a reflection housing, M is a power supply circuit, and B and C are branch points. It should be noted that the same or equivalent parts in FIG. 0 are denoted by the same reference numerals. Agent Shin Kuzuno - Figure 1 Figure 2 Figure 3

Claims (1)

[Claims] A system comprising one or more large reflectors and side plates, a plurality of small reflectors and a feeder, a plurality of feeder lines that feed the feeder, and a feeder circuit connected to the feeder lines.
1. A tobacco fire array antenna characterized in that the feeder, the plurality of feeder lines, and (1) the electric power plate are printed on one or both sides of the plate and integrated.