Research Article
Experimental Demonstration of Coexistence of Microwave Wireless Communication and Power Transfer Technologies for Battery-Free Sensor Network Systems
Table 2
WPT classifications by power level.
| Type | Source | Available transferred power | Structure |
| Scavenging | Unknown (RF and mechanical) | μW | Simple | Harvesting | Intentional and unknown (RF) | mW | Medium | EM power receiving | Intentional (pair with RF power transmission) | W | Complex |
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