Tunable impedance matching network with wide impedance coverage for multi frequency standards RF front-end

Wong, Yan Chiew; Ranjit, S. S. S.; Radzi, Syafeeza Ahmad; Hamid, Norihan Binti Abdul

doi:10.1016/j.aeue.2017.08.004

Cited by 6 publications

(2 citation statements)

References 13 publications

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“…Figure 5 shows the simulation results of the developed comparator. When the front-end measured voltage exceeds a reference voltage of 105.1 mV, the comparator outputs a digital signal 1 [21]. At the end, visible light flashing on and off is successfully converted into binary form.…”

Section: Front-end Receivermentioning

confidence: 99%

On-chip ultra low power optical wake-up receiver for wireless sensor nodes targeting structural health monitoring

et al. 2020

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Wireless sensor network (WSN) consists of distributed nodes deployed for monitoring the physical conditions and organizing collected data at the central control unit. Power consumption is the challenges in WSN as the network consists of wireless sensor nodes becomes denser. By utilizing WSN and visible light technology, a simple health monitoring system design can be approached that are smaller in size, faster and lower power consumption. This work focuses on design a low power optical wake-up receiver to reduce the energy consumption of each node in WSN. A wake-up receiver is designed to be always-on for detecting incoming signal and switches on the stand by protocol controller and WSN network for data transmission process. The characteristic of optical transmission and functional circuit of a wake-up receiver has been investigated. A low power optical wake-up receiver has been designed in 180nm Silterra CMOS process technology. The proposed wake-up receiver consumes only 443pW in standby mode and 1.89nW in active mode. The proposed optical wake-up receiver drastically reduces the power consumption by more than one third compared to other wake-up receivers which could be a milestone in the medical field if successfully conducted.

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Section: Front-end Receivermentioning

confidence: 99%

On-chip ultra low power optical wake-up receiver for wireless sensor nodes targeting structural health monitoring

et al. 2020

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“…Although, it depends on the specific circuit requirements such as the simplicity in practical realization, the frequency bandwidth, the least noise figure, design implementation and adaptability, stable operations conditions, and linearity. Thus, many types of stability and matching networks are available [1][2][3][4][5], which include lumped element [5], transmission lines [6], and variable matching network [7][8][9][10][11]. The qualitative summary of the stability and matching techniques for microwave amplifier of the earlier research done are listed and summarized in Table 1.…”

Section: Introductionmentioning

confidence: 99%

Cylindrical Dielectric Resonator as Dielectric Matching on Microwave Amplifier for the Unconditionally Stable and Conditionally Stable Transistor at 5 GHz Frequency

Yob

Mahyuddin

Ain

et al. 2022

ARASET

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Stability and matching techniques on microwave amplifier have been an important consideration to maintain their required performances, but typically its frequency dependent. Thus, a frequency variable mechanism is required. The dielectric matching employing the stability and matching techniques on microwave amplifier with cylindrical dielectric resonator has been investigated and realized. The cylindrical dielectric resonator (CDR) with parallel microstrip lines is proposed at 5 GHz frequency for unconditionally stable and conditionally stable transistor as dielectric matching. Hence, the proposed dielectric resonator with +2 mm spacing and 155˚ of curved configuration indicated the best performances for preliminary study. The result improves the performance of the parallel inhomogeneous CDR by 9.77%. Subsequently, the homogeneous CDR is also successfully working as the variable frequency mechanism for unconditionally stable and conditionally stable transistor at 5 GHz frequency in maintaining their stability performances.

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Miniature high gain slot-fed rectangular dielectric resonator antenna for IoT RF energy harvesting

Masius

Wong

Lau

2018

AEU - International Journal of Electronics and Communications

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Tunable impedance matching network with wide impedance coverage for multi frequency standards RF front-end

Cited by 6 publications

References 13 publications

On-chip ultra low power optical wake-up receiver for wireless sensor nodes targeting structural health monitoring

On-chip ultra low power optical wake-up receiver for wireless sensor nodes targeting structural health monitoring

Cylindrical Dielectric Resonator as Dielectric Matching on Microwave Amplifier for the Unconditionally Stable and Conditionally Stable Transistor at 5 GHz Frequency

Miniature high gain slot-fed rectangular dielectric resonator antenna for IoT RF energy harvesting

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