Essays about: "Passive RF devices"
Showing result 1 - 5 of 10 essays containing the words Passive RF devices.
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1. 3D Coating of Interface Materials for High-Performance RF Passive Devices
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : The demand for high-performance Radio Frequency (RF) passive devices has been steadily increasing due to the growing complexity and sophistication of wireless communication systems. The Quality factor (Q-factor) is a key parameter for describing the signal losses and the energy efficiency of resonators. READ MORE
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2. Characterisation and Modeling of RF environment
University essay from Uppsala universitet/Signaler och systemAbstract : Devices that transmit and receive electromagnetic signals are today central to the way people communicate and acquire information from the surroundings. WiDAR, Wideband Digital Array Receiver, is the name of a new system of digital antenna array receivers, which has recently been developed at Saab in Järfälla and is the focus of this thesis. READ MORE
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3. Graphene-based Crack-Free Ceramic Coatings for High-Performance Passive RF Devices
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : Dielectric resonators coated with highly conductive metallic layers are widely used in radio frequency (RF) applications. The quality factor (Q-factor) of resonators is a key figure-of-merit that describes the loss and the energy efficiency of the resonators. READ MORE
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4. Audio-based Motion Detection
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : Motion detection is an essential technology and it has numerous use-cases, such as security tracking, automated door opening systems, and IP cameras. Commonly, passive infrared sensors or radio frequency sensors are used for motion detection. However, this thesis focuses on performing motion detection using existing hardware at audio frequencies. READ MORE
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5. PLL for 5G mmWave
University essay from Lunds universitet/Institutionen för elektro- och informationsteknikAbstract : This paper presents research and implementation of a high frequency Integer-N phase-locked loop for digital beamforming in mobile devices. Multiple topologies investigated whereof two were implemented. The transient phase noise of the PLL is -104dB/-95dB @1MHz. The output frequency range is from 8G-10G. READ MORE