Qualcomm Incorporated

Andrea Fenaroli

Yiwu Tang

Hasnain Lakdawala

Francesco Gatta

Chengjin Zhang

Ahmed Abbas Mohamed Helmy

Ketan Humnabadkar

Minghui Chen

Balasubramanian Ramachandran

An apparatus is disclosed for multi-capacitor energy harvesting. In example aspects, the apparatus includes energy storage including a first capacitor and a second capacitor. The apparatus also includes an energy harvester including at least one rectifier and one or more switches. The switches can be controlled to initially charge the first capacitor and subsequently charge the second capacitor.

Multi-capacitor energy harvesting

Techniques and apparatus are described for reducing power consumption when performing wireless communications by dynamically changing the frequency of a local oscillator signal for a radio frequency (RF) downconversion circuit, based on signal conditions. An example method includes receiving an RF signal and downconverting the RF signal using an oscillating signal with a first frequency at a first time. The method also includes switching to downconverting the RF signal using the oscillating signal with a second frequency, based on a property associated with the RF signal at a second time. The second frequency is a subharmonic of the first frequency.

Dynamic subharmonic mixing for power reduction in wireless communications

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San Diego, CA, United States of America

Andrea Fenaroli