JPH01119102A - Power synthesizing system - Google Patents

Abstract

PURPOSE:To effectively and easily synthesize a high frequency power by focusing and synthesizing the output of plural high frequency power amplifiers at one place by using a wave converging means. CONSTITUTION:A spatial radiation antenna 2 is provided on the output stages of plural high frequency amplifiers 1, and each of them is arranged on one side, and also, the wave converging means 3 is provided on the other side. As the wave converging means 3, a recessed shape reflecting plate is used, and a synthetic power output circuit 5 is arranged at the focusing part of the plate. Therefore, a high frequency power outputted from each radiation antenna 2 is focused on the output circuit 5 arranged at the focusing part of the reflecting plate after being reflected on the recessed shape reflecting plate, which makes a synthesized state. In such a way, the high frequency power outputted from each radiation antenna 2 is reflected on the recessed shape reflecting plate, and is concentrated on the output circuit 5 to synthesize the power, then, it is taken out as a synthetic power.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a power combining method, and particularly to a power combining method suitable for various types of equipment that combine and use high frequency power.

[Prior Art] Conventionally, as shown in FIG. 3, the power combining method for power amplifiers combines the outputs of several power amplifiers 49 and further combines the combined results. A tournament type combiner 49A is often used, which combines all the power amplifiers 50 at one point in the center of a circle, and a radial type combiner, which combines all the power amplifiers 50 at one point in the center of a circle, is used. 50A is also used.

[Problem that the invention seeks to solve]

However, in the conventional example shown in FIG. 3, if one of the plurality of power amplifiers 49 is damaged, the other power amplifiers will be greatly affected, and therefore, strict consideration must be given to the isolation method. This has the disadvantage that it requires a lot of effort and maintenance. Furthermore, the conventional example shown in FIG. 4 has the disadvantage that phase adjustment takes time and effort.

[Purpose of the invention]

SUMMARY OF THE INVENTION An object of the present invention is to provide a power combining method that can improve the disadvantages of the conventional example and easily combine high frequency power with a high effective Q.

[Means for solving problems]

In the present invention, the output stage of a plurality of high-frequency power amplifiers is equipped with a space radiation antenna, each of these high-frequency power amplifiers is disposed on one side, and a radio wave convergence means is equipped on the other side. This system uses a configuration in which the outputs of a plurality of high-frequency power amplifiers are focused and synthesized at one location, thereby attempting to achieve the above-mentioned purpose.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to FIG.

The embodiment shown in FIG. 1 is equipped with a space radiation antenna 2 at the output stage of a plurality of high frequency power amplifiers 1, and each of these high frequency power amplifiers 1 is arranged on one side, and a radio wave convergence means 3 is placed on the other side. It is configured to be equipped with. As the radio wave converging means 3, a concave reflecting plate is used in FIG. A composite power output circuit 5 is arranged at the focal point of this concave reflector.

For this reason, the high frequency power output from each radiation antenna 2 is reflected by the concave reflecting plate, and then focused and synthesized on the output circuit 5 disposed at the focal portion of the reflecting plate.

That is, the high frequency power output from each radiation antenna 2 is reflected by the concave reflecting plate, concentrated on the power combining output circuit 5, and extracted as combined power.

FIG. 2 shows another embodiment. The embodiment shown in FIG. 2 differs from the embodiment shown in FIG. 1 in that a convex dielectric lens is used as the radio wave focusing means 3. The other configurations are the same as in the case of FIG. 1 described above.

Even in this case, the same effect as the embodiment shown in FIG. 1 described above can be obtained.

In addition, in each of the embodiments shown in FIGS. 1 and 2 above,
In either case, each radio wave convergence means 3 functions so that the high frequency power focused on the output circuit 5 has the same phase.

〔Effect of the invention〕

As described above, since the present invention is configured to spatially combine power, it is possible to simultaneously combine the power of, for example, several dozen or more power amplifiers, and isolation from other power amplifiers can also be achieved. It is possible to provide an unprecedented and excellent power combining method that does not require consideration.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing one embodiment of the present invention, FIG. 2 is a block diagram showing another embodiment, and FIGS. 3 and 4 are explanatory diagrams showing conventional examples. 1... High frequency power amplifier, 2... Radiation antenna, 3
...Radio wave convergence means. Patent applicant: Japan Electric Co., Ltd. Figure 1 Figure 2

Claims (1)

[Claims] (1). A space radiation antenna is equipped at the output stage of a plurality of high-frequency power amplifiers, each of these high-frequency power amplifiers is arranged on one side, and a radio wave convergence means is equipped on the other side. A power combining method characterized by focusing and combining the outputs of high-frequency power amplifiers in one place.