TWI636618B - Waveguide feeding device - Google Patents

Abstract

The present invention discloses a waveguide feeding device, which comprises a body having a connecting portion and an output portion, a coupling unit coupled to the body side and having a connecting portion and a coupling portion, wherein the body and the coupling Inside the unit, a plurality of openings penetrating through the two sides are formed, and the connecting portion is coupled to the connecting portion. When the antenna transceiver is coupled to the coupling portion, the output signal utilizes an opening connecting the engaging portion and the coupling portion. The signal is transmitted to the main body, and the output signal is transmitted through the through hole of the communication joint portion and the output portion. When the signal is fed back, the signal is transmitted to the coupling unit through the through hole of the communication joint portion and the output portion, and then transmitted through the through hole. The communication joint and the opening of the coupling portion are transmitted to the antenna transceiver.

Description

 Waveguide feeding device  

The invention relates to an antenna feeding device, and more particularly to a waveguide feeding device arranged in steps, electric bending and magnetic bending.

Planar array antennas are widely used in the field of radar. Such planar array antennas are generally one type of planar linear array antennas, each of which has a series of openings of resonant cavity radiation, and microwave energy is provided by a feed waveguide to provide radiation guided waves. The feed waveguide is fed by an input waveguide.

For most applications, slot coupling is a necessary technique for coupling energy into the waveguide to the radiating waveguide. For a single feed slot coupling involves energy passing through a slot in the rectangular feed waveguide transverse wall, and In the transmission of a slot or the like on the transverse wall of the rectangular radiating waveguide, the energy is generally supplied to the feeding waveguide by an input waveguide located at both ends of the feeding waveguide or along a long direction thereof, and the input waveguide is fed to the end of the waveguide. The location limits the bandwidth of the system or has other problems due to the relative inaccessibility of the feed ends.

Feeding the center feed point of the waveguide, there is a problem with the input slot of the input waveguide relative to the position of the feed slot of the feed waveguide. When the input slot and the feed slot are normally provided in the feed When the waveguide is placed on the opposite lateral wall and is spaced a quarter of a wavelength below the waveguide, an impedance is reversed to the respective half of the feed waveguide. This is a common technique for correcting the impedance reversal during design. Involving the size of the coupling slot design, however, the general processing method is likely to cause a large phase difference of the coupling surface, and the input slot is located on the opposite lateral wall, and the length of the feed waveguide is at the same position as the feed slot. Since the input slot and the opposite feed slot are difficult to achieve independent coupling.

Referring to FIG. 1 , it is a schematic diagram of a conventional array antenna waveguide coupling device. As shown, the device includes a parallel wall 11 having a first slot 111 and a second slot 112. The parallel wall 11 of a slot 111 has a first longitudinal axis 11a, and the parallel wall 11 of the second slot 112 has a second longitudinal axis 11b, the first slot 111 being opposite the second slot 112, as described above The first slot 111 and the second slot 112 are orthogonal to each other to reduce the impedance of the incoming signal. However, as described above, the first slot 111 and the second slot 112 are fabricated. The accuracy of the slot processing needs to be considered, and the setting method can only be used for the transmission of a short distance. When the feeding device has a long distance, the purpose cannot be effectively achieved, and the setting manner cannot be effectively reduced. The size of the feeder and antenna.

The main object of the present invention is to provide a waveguide feeding device, which is formed on a body and a coupling unit to form a plurality of communication openings, and the signals of the antenna transceiver are transmitted through the communication openings, thereby further integrating the plurality of antenna transceivers. purpose.

Another object of the present invention is to provide a waveguide feeding device, which uses a step, an electric bend, and a magnetic bending method to form a communication opening, thereby achieving the purpose of reducing the signal transmission loss of the antenna transceiver.

Another object of the present invention is to provide a waveguide feeding device that uses a step, an electric bend, and a magnetic bending to form a communication opening, thereby achieving the purpose of reducing the size of the antenna.

In order to achieve the above and other objects, the present invention provides a waveguide feeding device for connecting a plurality of arrays of antenna transceivers, the device comprising a body having a plurality of connecting portions and an output portion, and a body disposed on the body a coupling unit having a plurality of joint portions and a coupling portion, wherein the connecting portion and the output portion are disposed on opposite sides of the body, and a through hole connecting the connecting portion and the output portion is formed in the body, the coupling The inside of the unit is also provided with a plurality of openings connecting the joint portion and the coupling portion. When the body is engaged with the coupling unit, the joint portion of the coupling unit is connected with the joint portion of the body, and the openings provided in the interior are also mutually connected When the antenna transceiver device is connected to the coupling portion, the output signal generated by the antenna transceiver device is transmitted to the body through the communication joint portion and the opening of the coupling portion, and then transmitted through the communication joint portion and the output portion. Passing the output signal through the opening, when the signal is fed back, the signal is transmitted to the coupling unit through the through hole of the connecting joint and the output portion , And then through the communication opening of the engaging portion of the coupling, the antenna is transmitted to the transceiver, so as to achieve a plurality of integrated transceiver antenna, the antenna and the object of reducing the transmission loss of the signal transmitting and receiving device.

11‧‧‧Parallel walls

111‧‧‧First slot

112‧‧‧Second slot

11a‧‧‧First vertical axis

11b‧‧‧second vertical axis

21‧‧‧ body

22‧‧‧Coupling unit

211‧‧‧Upper cover

212‧‧‧Baffle

213‧‧‧ Lower cover

21a‧‧‧Connecting Department

21b‧‧‧Output Department

221‧‧‧ first side panel

222‧‧‧ second side panel

22a‧‧‧Coupling

22b‧‧‧Interface

C‧‧‧ joint surface

Figure 1 is a schematic diagram of a conventional array antenna waveguide coupling device.

2 is a schematic view of a waveguide feeding device of the present invention.

Figure 3 is a schematic view of the body of the waveguide feeding device of the present invention.

Figure 4 is a schematic view of the upper cover of the body of the waveguide of the present invention.

Fig. 5 is a schematic view showing the coupling unit of the waveguide feeding device of the present invention.

Figure 6 is a schematic exploded view of the coupling unit of the waveguide feeding device of the present invention.

The embodiments of the present invention are described below by way of specific examples, and those skilled in the art can understand the other advantages and advantages of the present invention from the disclosure.

2 is a schematic diagram of a waveguide feeding device of the present invention. As shown in the figure, the waveguide feeding device includes a body 21 and a coupling unit 22 disposed on a side of the body 21, wherein The body 21 is a rectangular block, and a connecting portion 21a is disposed at one end of the body 21. As shown in FIG. 3A, an output portion 21b is disposed on the opposite side, as shown in FIG. 3B, and inside the body 21 The through hole is formed by connecting the connecting portion 21a and the output portion 21b in multiple numbers. As shown in FIGS. 4A and 4B, the body 21 includes an upper cover 211, a partition 212, and a lower cover 213. On the side of the upper cover 211 and the lower cover 213, a joint surface provided with a plurality of grooves is provided, and each of the grooves is disposed in one of a step, an electric bend and a magnetic bend, and the groove is connected The upper cover 211, the connecting portion 21a of the lower cover 213, and the output portion 21b are disposed between the upper cover 211 and the lower cover 213 when the body 21 is coupled, so that the body 21 is The plurality of through holes are formed through the connecting portion 21a and the output portion 21b, as shown in FIGS. 5A and 5B. The coupling unit 22 is a rectangular block having a first side plate 221 and a second side plate 222. A coupling portion 22a and a joint portion 22b are disposed at one end of the coupling unit 22, and the first side plate 221 and the second side plate 222 are provided. The side system has a joint surface C of a plurality of groove arrangements. As shown in FIG. 6, the groove is provided in one of steps, electric bending, magnetic bending, or two of them, when the coupling unit 22 is combined A plurality of openings extending through the joint portion 22b and a coupling portion 22a are formed on the coupling unit 22, and when the body 21 is engaged with the coupling unit 22, the connecting portion 21a is engaged with the joint portion 22b, and the body is formed on the body The through hole in the 21 is connected to the opening in the coupling unit 22, and when the antenna transceiver is coupled to the coupling portion 22a, the output signal generated by the antenna transceiver is utilized by the communication coupling portion 22a and the joint portion The opening of the 22b is transmitted to the main body 21, and the output signal is transmitted through the through hole of the connecting portion 21a and the output portion 21b. When the signal is fed back, the signal uses the through opening of the connecting portion 21a and the output portion 21b. Passed to the coupling list 22, and then through the communication hole 22b of the engaging portion of the coupling portion 22a, is transmitted to the transceiver antenna.

The above-described embodiments are merely illustrative of the features and functions of the present invention, and are not intended to limit the scope of the technical scope of the present invention. Modifications and variations of the above-described embodiments can be made by those skilled in the art without departing from the spirit and scope of the invention. Therefore, the scope of protection of the present invention should be as set forth in the scope of the claims described below.

Claims (10)

A waveguide feeding device is a waveguide feeding device for connecting a plurality of arrays of antenna transceivers, the device comprising: a body, which is a rectangular block, and a plurality of ends are disposed at the end of the body The connecting portion is provided with an output portion on the opposite side, and a plurality of through holes are formed in the body to connect the connecting portions and the output portion; a coupling unit is a rectangular block at one end of the coupling unit An engaging portion and a coupling portion are disposed, and an opening communicating with the engaging portion and the coupling portion is formed in the coupling unit, and the connecting portion is engaged with the connecting portion, and the antenna transceiver is coupled to the coupling portion The output signal generated by the antenna transceiver is transmitted to the main body through the communication joint and the opening of the coupling portion, and the output signal is transmitted through the through hole of the communication joint portion and the output portion when the signal is fed back. The signal is transmitted to the coupling unit through the through hole of the communication joint portion and the output portion, and then transmitted to the antenna through the communication joint portion and the opening portion of the coupling portion. Forwarding apparatus. The waveguide feeding device of claim 1, wherein the system has an upper cover, a partition, and a lower cover. The waveguide tube feeding device of claim 2, wherein the upper cover body and the lower cover body side have a combination surface of a plurality of groove arrangements, and each of the grooves is stepped, electrically bent, One of the ways of magnetic bending, or two of them. The waveguide feed structure of claim 2, wherein the trench is connected The connection portion and the output portion of the upper and lower covers are connected. The waveguide feeding device of claim 2, wherein the partition is disposed between the upper cover and the lower cover joint surface to form the body through the connecting portion, and Multiple openings in the output section. The waveguide feeding device of claim 1, wherein the coupling unit has a first side plate and a second side plate. The waveguide tube feeding device of claim 6, wherein the first side plate and the second side plate side have a combination surface of a plurality of groove arrangements, and each of the grooves is stepped, electrically bent, One of the ways of magnetic bending, or two of them. The waveguide feeding device of claim 6, wherein the groove is connected to the joint portion of the first and second side plates and a coupling portion. The waveguide feeding device of claim 6, wherein the first and second side plates form a plurality of openings penetrating the joint portion and a coupling portion when the coupling unit is coupled. The waveguide feeding device of claim 1, wherein when the body is engaged with the coupling unit, the connecting portion is engaged with the engaging portion, the opening formed in the body, and the coupling unit The openings are connected.