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Long term evolution linear power amplifier

A linear power, long-term evolution technology, applied in power amplifiers, high-frequency amplifiers, differential amplifiers, etc., can solve problems such as increasing production costs, and achieve the effects of reducing production costs, reducing layout area, and improving power transmission efficiency

Inactive Publication Date: 2012-01-18
TIANJIN UNIV
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AI Technical Summary

Problems solved by technology

At the same time, because of the use of on-chip integrated inductors in the power amplifier, the production cost is increased.

Method used

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  • Long term evolution linear power amplifier
  • Long term evolution linear power amplifier
  • Long term evolution linear power amplifier

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Embodiment Construction

[0018] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0019] In the long-term evolution linear power amplifier, the drain of the common-source transistor M1 is connected to the source of the common-gate transistor M3, the drain of the common-source transistor M2 is connected to the source of the common-gate transistor M4, and the gate of the common-source transistor M1 receives The differential radio frequency signal vin+, the gate of the common source transistor M2 receives the differential radio frequency signal vin-; the gates of the common gate transistors M3 and M4 are connected to the bias voltage Vg or the power supply voltage VDD, and the drains of the common gate transistors M3 and M4 are connected to the even Pole antenna; the on-chip capacitor Co1 is connected between the drain of the...

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Abstract

The invention discloses a long term evolution linear power amplifier which relates to the field of mobile communication, in particular to a long term evolution linear power amplifier. The long term evolution linear power amplifier comprises a difference cascade structure and two parallel resonance circuits, wherein the difference cascade structure is composed of MOS (Metal Oxide Semiconductor) tubes M1, M2, M3 and M4; and each resonance circuit is composed of a dipole antenna and onchip capacitors Co1 and Co2. In the long term evolution linear power amplifier, because two onchip integrated inductors are omitted, the integration area of the power amplifier is greatly reduced, and the manufacture cost of the integrated power amplifier is lowered; meanwhile, the difference structure and the dipole antenna are directly coupled, an output impendence conversion network is not required, so that power transmission efficiency is greatly improved, a new matching mode is built between the power amplifier and an transmitting antenna, and the long term evolution linear power amplifier has an important production practice meaning.

Description

technical field [0001] The invention relates to the field of mobile communication, in particular to a long-term evolution linear power amplifier. Background technique [0002] With the commercialization of the third generation mobile communication system 3G in countries all over the world, the fourth generation mobile communication system 4G has become the focus of research. According to the goals proposed by the ITU, the 4G mobile communication system needs to achieve a data rate of 100Mbps to 1Gbps, for which a series of new technologies will be applied. my country's next-generation mobile communication technology TD-LTE with independent intellectual property rights was finally determined by the International Telecommunication Union in October 2010 as the international standard for the fourth-generation mobile communication 4G. LTE (Long Term Evolution, Long Term Evolution) is the evolution from 3G to 4G. It improves and enhances the air access technology of 3G. It adopts...

Claims

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Application Information

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IPC IPC(8): H03F3/20H03F3/189H03F3/45
Inventor 毛陆虹邓见保张世林谢生
Owner TIANJIN UNIV
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