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A small-sized Ku wave band 120W power amplifier

A technology for power amplifiers and amplifiers, applied to power amplifiers, improved amplifiers to reduce temperature/power supply voltage changes, etc., can solve the problems of low output power and low efficiency, achieve high output power, reduce burden, and simple processing

Pending Publication Date: 2019-05-10
NANJING SAIGEW MICROWAVE SCI & TECH
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AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a small Ku-band 120W power amplifier, which uses a two-stage four-way power distribution and synthesis network to solve the technical problems of low power synthesis efficiency and small output power after single tube amplification

Method used

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  • A small-sized Ku wave band 120W power amplifier
  • A small-sized Ku wave band 120W power amplifier
  • A small-sized Ku wave band 120W power amplifier

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Embodiment Construction

[0026] Such as Figure 1-Figure 3 A small Ku-band 120W power amplifier shown, including a power distribution network, 4 amplifiers and a power combining network;

[0027] The power distribution network includes a first well-shaped bridge, and the first well-shaped bridge includes a first bridge strip part 1, a first load access part 2, an input signal access part 3, a first power distribution output part 5 and The second power distribution output part 6, the left end of the first electric bridge strip part 1 is provided with a horizontal input signal access part 3, and the left end of the first electric bridge strip part 1 is also provided with an upwardly bent first load The access part 2, the first load access part 2 is arranged on the right side of the input signal access part 3, and the right end of the first bridge strip part 1 is provided with a first power distribution output part 5 and a second power distribution output part 6. The first power distribution output part...

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Abstract

The invention discloses a small Ku waveband 120W power amplifier, which belongs to the technical field of communication electronics, and comprises a power distribution network, four amplifiers and a power synthesis network, and solves the technical problems of low efficiency and small output power of power synthesis after single-tube amplification by adopting a two-stage four-path power distribution synthesis network. The power amplifier has the advantages of high output power and small size, the reliability of the power amplifier is improved, the service life of the power amplifier is prolonged, the power consumption during saturated output is less than 600 W, and the power consumption during working in a linear region is less than 450 W. a new waveguide synthesis circuit and a new waveguide-micro-strip double-probe combined power distribution synthesis network is adopted, the power distribution synthesis network not only can compress and synthesize the spatial size, but also is highin power synthesis efficiency, low in loss, simple to process, compact in structure and capable of bearing larger output power.

Description

technical field [0001] The invention belongs to the technical field of communication electronics, in particular to a small Ku-band 120W power amplifier. Background technique [0002] High-power Ku-band power amplifiers are widely used in communication, radar and electronic countermeasure systems. At present, the output power of Ku-band power amplifiers in the domestic market is small, and the working bandwidth is narrow. With the development of communication services and the standardization of products, the demand for high-power Ku-band power amplifiers will continue to grow. With the increase of microwave frequency, the power handling capacity of semiconductor solid-state power amplifiers decreases sharply. Traditional power combiners such as Wilkinson power dividers, Lange couplers, and branch line couplers have insurmountable low synthesis efficiency and low working efficiency when the frequency is high. Inherent defects such as narrow bandwidth. [0003] Because the sa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/30H03F3/21H03F3/24
Inventor 顾菜军严镇浩
Owner NANJING SAIGEW MICROWAVE SCI & TECH
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