A radio frequency circuit, a radio frequency device and an electronic device

Abstract

The application discloses a radio frequency circuit, a radio frequency device and electronic equipment, and relates to the technical field of wireless communication.The radio frequency circuit comprises an antenna, a front-end switch module, a first frequency band filter module and a back-end processing module.The core of the application is that the frequency characteristics of a second frequency band are that the receiving frequency of the second frequency band is all contained in the receiving frequency range of a first frequency band, and the transmitting frequency of the second frequency band at least partially falls in the range, so that the second frequency band multiplexes the filter module of the first frequency band and the front-end channel of the filter module.The back-end processing module is used for separating the multiplexed signals, and optionally suppressing the second frequency band transmitting signals.By omitting the second frequency band dedicated filter, and replacing part of the high-cost front-end devices with a low-cost, small-package back-end switch and filter network, the application significantly reduces the material cost and effectively reduces the layout area of the printed circuit board under the premise of ensuring the communication performance, and is suitable for various electronic equipment such as mobile phones, tablet computers and the like.

Images