Radio frequency modules capable of self-calibration
AssigneeMediatek Inc.
InventorsLien Chien, Hsin-Ying Lee
Life of this patent
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Abstract
A radio frequency (RF) module capable of self-calibration is provided. According to an embodiment, the RF module includes an RF signal processor, a plurality of RF signal paths, an antenna switch module (ASM), and a power detector. The RF signal paths are connected between the RF signal processor and the ASM. The ASM has an antenna port and selectively connects the RF signal processor to the antenna port through one of the RF signal paths. The power detector is operative to detect power of an RF transmission signal that exits the antenna port of the ASM and enters an antenna when the ASM connects an RF transmission path of the RF signal paths to the antenna port of the ASM.
Claims17
A radio frequency (RF) module, comprising:
- an RF signal processor;
- a plurality of RF signal paths connected to the RF signal processor;
- an antenna switch module (ASM) connected to the RF signal paths, the ASM including an antenna port and selectively connecting the RF signal processor to the antenna port through one of the RF signal paths;
- and
- a power detector, operative to detect power of an RF transmission signal that exits the antenna port of the ASM and enters an antenna when the ASM connects an RF transmission path of the RF signal paths to the antenna port of the ASM.
A radio frequency (RF) module, comprising:
- an RF signal processor;
- a plurality of RF signal paths connected to the RF signal processor;
- an antenna switch module (ASM) connected to the RF signal paths, the ASM including an antenna port and selectively connecting the RF signal processor to the antenna port through one of the RF signal paths;
- and
- a test tone generator, operative to generate a test tone and feed the test tone into the antenna port of the ASM when the ASM connects the antenna port to an RF receiving path of the RF signal paths.
A radio frequency (RF) module, comprising:
- an RF signal processor, comprising a calibration component;
- a plurality of RF signal paths connected to the RF signal processor;
- an antenna switch module (ASM) connected to the RF signal paths, the ASM including an antenna port and selectively connecting the RF signal processor to the antenna port through one of the RF signal paths;
- and
- a coupler, including an input port connected to the antenna port of the ASM, a transmitted port connected to an antenna, and a coupled port connected to the calibration component of the RF signal processor;
- wherein the calibration component of the RF signal processor facilitates the calibration of at least one of the RF signal paths.
Dependencies are inferred from the claim text.