Radio frequency transmitting circuit, radio frequency front-end module and communication device
By employing multiple power amplifier circuits and voltage generation circuits in the RF transmitting circuit, power amplifier circuits of different frequency bands can operate within their corresponding frequency bands, solving the problems of increased module area and cost, and achieving the effect of reducing the number of components and lowering costs.
CN122419488APending Publication Date: 2026-07-17HUAWEI TECH CO LTD
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUAWEI TECH CO LTD
- Filing Date
- 2025-01-15
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing multi-frequency power amplifier RF transmitter circuit modules have a large area, increasing module costs.
Method used
The design employs multiple power amplifier circuits and voltage generation circuits, where the voltage generation circuit is coupled to the gates of multiple power transistors, supporting power amplifier circuits of different frequency bands to operate within their corresponding frequency bands. Frequency band switching is achieved through time-division power supply via the power supply circuit, reducing the number of components.
Benefits of technology
This effectively reduces the module area and number of components in the RF transmitter circuit, thereby lowering costs.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN122419488A_ABST
Abstract
本申请实施例提供一种射频发射电路、射频前端模组以及通信设备，用于改善模组面积较大的现象。射频发射电路包括多个功率放大电路和电压产生电路，多个功率放大电路包括第一功率放大电路和第二功率放大电路，第一功率放大电路包括第一功率管，第二功率放大电路包括第二功率管，电压产生电路分别与第一功率管的栅极和第二功率管的栅极耦合；其中，第一功率放大电路用于处理第一频段的信号；第二功率放大电路用于处理第二频段的信号。通过上述设置，一个电压产生电路能够支持不同频段的功率放大电路在对应的频段内工作，有利于减小射频发射电路内的器件数量，进而有利于减小射频发射电路占用的模组面积。
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