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Distributed power amplifier with reconfigurable frequency band

A power amplifier, distributed technology, applied in power amplifier, climate sustainability, sustainable communication technology and other directions, can solve the problems of power amplifier added efficiency reduction, power added efficiency reduction, increase equipment cost, etc., to improve power added efficiency Efficiency, power-added efficiency improvement, and the effect of flexible configuration

Active Publication Date: 2021-06-29
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Due to the above structure, the distributed power amplifier can work in a very wide frequency band, but in the high frequency band, the signals are out of phase at the reverse port of the drain line, and most of them cancel each other out, so that the output power of the power amplifier is reduced. , leading to a decrease in power-added efficiency
To sum up, for ultra-wideband power amplifiers that can cover all network standards, the additional efficiency of the power amplifier will be reduced, which will affect system power consumption and increase equipment costs.

Method used

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  • Distributed power amplifier with reconfigurable frequency band
  • Distributed power amplifier with reconfigurable frequency band
  • Distributed power amplifier with reconfigurable frequency band

Examples

Experimental program
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Effect test

Embodiment 1

[0034] When the number of transistors is 4, the number of switch inductors is 4, and the actual circuit structure is shown. Figure 4 Indicated.

[0035]A frequency band reconstruct distributed power amplifier, including 4 transistors, 4 drain transmission lines, 5 gate transmission lines, 4 switching inductors, power supplies, bias voltages, and matching resistors; one end of the first gate transmission line As the input, the other end is connected to the gate of the first transistor and one end of the second bar conversion line, the drain of the first transistor is connected to one end of the first drain transmission line, the other end of the first drain transmission line. One end of the drain of the second transistor and the second drain transmission line; the other end of the gate transmission line connected to the gate of the second transistor and one end of the third gate transmission line, the third gate On the other end of the transmission line, the gate of the third trans...

Embodiment 2

[0039] When the number of transistors is 5, the number of switching inductors is 6, and the actual circuit structure is shown. Figure 5 Indicated.

[0040] As can be seen from the figure, the switch inductor is divided into two groups, each of which is connected to one end of the set of switching inductance on the drain transmission line side, and one end of the fourth drain transmission line, the gate conversion line side One end of the set of switching inductance with the fourth gate transmission line, that is, the actual access position of the switching inductance does not affect the actual function of the circuit.

[0041] At this time, this embodiment can achieve switching of three operating frequency bands.

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Abstract

The invention provides a distributed power amplifier with a reconfigurable frequency band, and belongs to the technical field of power amplifiers. A switch inductor is introduced into a traditional distributed power amplifier, whether the inductor is connected to a circuit or not is controlled through a switch, so that frequency band switching is achieved, a self-resonance point of a large choke inductor is transferred to the outside of a band, and the power additional efficiency can be improved by 27% at most compared with a traditional distributed structure.

Description

Technical field [0001] The present invention belongs to the technical field of power amplifier, and more particularly to a frequency band reconfigurable distributed power amplifier. Background technique [0002] Radio and microwave power amplifiers are used to enlarge the radio frequency and microwave signals carrying information in a communication system. Mobile terminal devices often integrate a variety of network systems, while needing navigation and Bluetooth features, while different network systems, navigation and Bluetooth are often used in different electromagnetic wave bands. The power amplifier in the transceiver module in the current mobile terminal device is mostly designed to design a power amplifier of different frequency bands for different sub-function, thus significantly increase the volume and cost of the equipment. [0003] The researchers turned to encompassing the ultra-wideband power amplifier of all network systems, proposed distributed power amplifiers. In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F3/20
CPCH03F3/20Y02D30/70
Inventor 王勇马殊闫富宸
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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