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This work presents an ultra-low power event driven wake-up receiver (WuRx) fabricated in a RF CMOS 130 nm process. The receiver consists of an off-chip lumped element matching network, an envelope detector, a decision circuit capable of detecting sub-mV baseband signal voltages and a clock source consuming 1.3 nW. This receiver has demonstrated a sensitivity of −72 dBm while consuming a total of 8...
This paper presents a fully passive front-end operating at 461 MHz, as a building block for implementation of wakeup receivers in sensor networks. We use an Aluminum Nitride (AlN) microelectromechanical system (MEMS) resonator for impedance transformation in order to achieve passive voltage boost at the input of a quadratic envelope detector, fabricated in a 130nm CMOS process. Each individual block...
This paper presents an overview of the design considerations and challenges of event-driven wakeup receivers as well as an analysis of state-of-the-art (SOA) research. We consider advantages and disadvantages of the commonly utilized architectures in these systems as well as presenting big picture perspectives from an application standpoint. This paper focuses on event-driven scenarios where the activity...
This paper presents a study of passive Dickson based envelope detectors operating in the quadratic small signal regime, specifically intended to be used in RF front end of sensing units of IoE sensor nodes. Critical parameters such as open-circuit voltage sensitivity (OCVS), charge time, input impedance, and output noise are studied and simplified circuit models are proposed to predict the behavior...
Microwave photonic radiators provide wide bandwidths and high powers at mm-wave frequencies that can be utilized in extremely high throughput wireless communications, and high resolution millimeter wave imaging systems where their rugged, compact designs enable integration into large scale millimeter wave phased arrays. This work presents the design, implementation and measurement of a millimeter...
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