A Ka-band Broadband High Power Amplifier

A power amplifier and high-power technology, which is applied in the direction of power amplifiers, waveguide devices, electrical components, etc., can solve the problems of large combiner loss and reduced combined power, and achieve the effects of cost control, reduced combined loss, and simplified overall structure

CN108091970BActive Publication Date: 2020-06-23广州安波通信科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2020-06-23

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Abstract

The embodiment of the present invention discloses a Ka-band broadband high-power amplifier, including: a first-stage power amplifier module, a second-stage power amplifier module, a third-stage power amplifier module, a first waveguide ET, a second waveguide ET, a first A waveguide four-way power divider, a second waveguide four-way power divider, a third waveguide four-way power divider and a fourth waveguide four-way power divider. The power amplifier provided by the present invention adopts a waveguide power divider, including a waveguide ET and a waveguide four-way power divider, which can effectively reduce the combined loss. Although the isolation is sacrificed, greater output power can be obtained under the same combined scale. . And the power amplifier module adopts the waveguide output form, which can be directly connected with the waveguide power combiner (that is, the second waveguide ET, the third waveguide four-way power divider and the fourth waveguide four-way power divider), which simplifies the overall structure of the amplifier , Effective cost control.
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Description

technical field

[0001] The invention relates to the field of Ka-band broadband power amplification, in particular to a Ka-band broadband high-power amplifier. Background technique

[0002] At present, high-power devices based on GaAs and GaN have become the mainstream of civilian high-power product development. However, because the millimeter-wave band is special and its wavelength is very short, the size of the developed MMIC is very small, which limits the maximum output power of a single MMIC. Therefore, the development of high-power amplifiers operating in the millimeter wave band also requires the use of power combining technology. The current mainstream combiner technology includes spatial power combining technology, lossy combining technology, lossless combining technology and so on.

[0003] Lossy synthesis technology can provide a certain degree of isolation for each synthesized device, but due to the resistance component inside the synthesizer, when the frequency...

Examples

Embodiment Construction

[0056] The embodiment of the present invention provides a Ka-band broadband high-power amplifier, which solves the technical problem that the combined power is reduced due to the large loss of the combiner in the current lossy combining technology.

[0057] In order to make the purpose, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the following The described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0058] Please refer to Fig. 1 (a) and Fig. 1 (b), an embodiment of a kind of Ka band broa...