Mismatching processing methods and device for power amplifier of wireless transmitter

A power amplifier and wireless transmitter technology, applied in the field of communication, can solve the problems of low mismatch probability, increased power consumption and heat generation, etc., to reduce wired power consumption, avoid power consumption and heat generation, and avoid sensitivity to volume and cost Effect

Active Publication Date: 2013-09-11
HUAWEI DEVICE CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In some application scenarios, such as wireless data cards, the probability of mismatch is small, and it will increase the power consumption and heat generation when there is no mismatch

Method used

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  • Mismatching processing methods and device for power amplifier of wireless transmitter
  • Mismatching processing methods and device for power amplifier of wireless transmitter
  • Mismatching processing methods and device for power amplifier of wireless transmitter

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Embodiment Construction

[0041] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0042] Such as figure 1 As shown, in the embodiment of the present invention, the flow of the mismatch processing method for the wireless transmitter power amplifier may include:

[0043] Step 101, determine that the power amplifier of the wireless transmitter satisfies the mismatch condition;

[0044] Step 102, enabling an isolator between the power amplifier and the antenna matching circuit of the wireless transmitter for isolation processing;

[0045]Step 103, when the power amplifier satisfies the matching condition again, disable the isolator.

[0046] Depend ...

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Abstract

The invention discloses mismatching processing methods and device for a power amplifier of a wireless transmitter. One of the methods comprises the following steps of: determining whether the power amplifier of the wireless transmitter meets mismatching conditions; starting using an isolator for isolation processing between the power amplifier and an antenna matching circuit of the wireless transmitter; and stopping using the isolator when the power amplifier meets the mismatching conditions once again. Another method comprises the following steps of: determining whether the power amplifier of the wireless transmitter meets mismatching conditions; regulating the input power of the power amplifier according to the maximum wired simulated transmitting power of the power amplifier under matching conditions so as to control the output power of the power amplifier. Compared with the technical scheme of introducing the isolator in the wireless transmitter in the prior art, the invention not only can ensure that the maximum wireless power consumption can not exceed the maximum wired power consumption, but also can reduce wired power consumption and avoid increasing power consumption and heat production at ordinary times when mismatching does not occur; moreover, the sensitivity of the product on the size and the cost of the isolator can be avoided.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a mismatch processing method and device for a wireless transmitter power amplifier. Background technique [0002] At present, the radio frequency circuit used in mobile phones is to control and reduce wired power consumption. The ideal value of the load between PA (Power Amplifier, power amplifier) ​​and RF Switch (Radio Frequency Switch, radio frequency switch) is adjusted to a given output power, linearity The optimal point of efficiency on the Load pull (load characteristic) curve when meeting the 3GPP protocol index margin requirements, usually 50 ohms is a compromise; the antenna matching circuit after the RF switch is also usually adjusted to 50 ohms ohm. [0003] At present, the wireless test standards of mobile phone and other industries are established in free space, but when users actually use it, antenna mismatch will occur and cause power amplifier mismatch. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W52/02H04W52/52H04W88/02
CPCY02D30/70
Inventor 靳林芳杨兆良
Owner HUAWEI DEVICE CO LTD
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