A radio frequency integrated circuit, transmitter and mobile terminal
A technology of radio frequency integrated circuits and transmitters, which is applied in the field of communication, can solve problems such as deterioration of power amplifier performance, and achieve a wide range of applications
Active Publication Date: 2022-07-26
SHENZHEN HYTERA COMM
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Problems solved by technology
[0002] In the prior art, the bias state of the power amplifier will be changed due to the change of temperature, which will lead to the deterioration of the performance of the power amplifier. Therefore, in order to obtain the appropriate performance in the full temperature range, in the design stage of the RF power amplifier, it is necessary to ensure that the power amplifier is in the full temperature range. There is a stable static operating point, so a solution that can solve the above technical problems is needed
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[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0022] In the description of the present application, "a plurality of" means at least two, such as two, three, etc., unless otherwise expressly and specifically defined. Furthermore, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not ...
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The present application discloses a radio frequency integrated circuit, which includes: a temperature compensation processing circuit for receiving a bias voltage signal and a collected temperature voltage signal, and amplifying the bias voltage signal by a first multiple to obtain a target bias voltage signal, amplify the temperature voltage signal by a second multiple to obtain the target temperature voltage signal, and perform superposition processing on the target bias voltage signal and the target temperature voltage signal to obtain the target temperature compensation voltage signal; the power amplifier circuit is connected with the temperature compensation processing circuit And receive the radio frequency input signal to use the target temperature compensation voltage signal to perform temperature compensation on the radio frequency input signal, so as to generate the corresponding radio frequency output signal. By means of the technical solution provided in the present application, the relative independence of the bias compensation and the temperature compensation can be realized without changing the circuit topology of the power amplifier circuit, and the application range is wide. The present application also provides a transmitter and a mobile terminal.
Description
technical field [0001] The present application relates to the field of communications, and in particular, to a radio frequency integrated circuit, a transmitter and a mobile terminal. Background technique [0002] In the prior art, since the change of temperature will change the bias state of the power amplifier, the performance of the power amplifier will be deteriorated. Therefore, in order to obtain appropriate performance in the full temperature range, in the design stage of the RF power amplifier, it is necessary to ensure that the power amplifier must be within the full temperature range. There is a stable static operating point, so there is a need for a solution that can solve the above-mentioned technical problems. SUMMARY OF THE INVENTION [0003] The technical problem mainly solved by the present application is to provide a radio frequency integrated circuit, a transmitter and a mobile terminal that can realize relatively independent bias compensation and tempera...
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IPC IPC(8): H04B1/04H04B1/40
CPCH04B1/04H04B1/40H04B2001/0416
Inventor 张宜成崔建伟曾志雄万玉明
Owner SHENZHEN HYTERA COMM