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Showing result 1 - 5 of 213 essays matching the above criteria.
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1. Extending Wireless Power Transfer Range for Self-Powered Micro Devices with mm-size Antenna
University essay from Linköpings universitet/Elektroniska Kretsar och SystemAbstract : The primary challenge in expanding the wireless power transfer range for miniaturized self-powered micro devices is the limited RF energy harvesting due to the small effective area and low gain of the mm-sized antennas used in these devices. This thesis introduces a method for extending the distance between an external energy source antenna (TX) and a micro-device antenna (RX) to more than 10 cm. READ MORE
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2. Investigation of Analog Calibration Systems for Spurious Tone Suppression in Frequency Triplers
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : The market for Wi-Fi receiver designs for latest Wi-Fi standards, that cover RF bands in the 2.4 GHz, 5 GHz and 6 GHz spectrum, require increasingly stringent power consumption limitations as more of the market is driven towards battery-powered devices. READ MORE
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3. Laser dazzling of CMOS imaging sensors using amplitude modulated and continuous wave lasers
University essay from Umeå universitet/Institutionen för fysikAbstract : Protecting sensitive information is important, especially in defence applications. As cameras become more common, developing countermeasure systems that limit the information gathering capabilities of imaging sensors would be beneficial. READ MORE
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4. Design and Modeling of InxGa(1−x)As/InP based Nanosheet Field Effect Transistors for High Frequency Applications
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : The advancement of CMOS technology has been fueled by the need to satisfy Moore’s law by shrinking transistors to progressively smaller sizes and increasing the transistor density per unit area [1]. The dimension of the state-of-the-art MOSFET is now down to a few nanometers. READ MORE
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5. Current-Mode Class D Power Amplifier for 2.4GHz Wi-Fi
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Modern wireless communication techniques employed in the Wi-Fi® protocol, such as orthogonal frequency-division multiplexing exhibit analogue signals with high peak-to-average power ratio. Therefore, power amplifiers for Wi-Fi suffer from low efficiency when operating in back-off mode, away from their maximum efficiency at peak power. READ MORE