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Communication lines in wire communication systems are usually used as power lines. Ac communication signal and dc supply power are separated at input part of a powered terminal. Conventional well-known separators utilize the combination of inductors and capacitors. When the frequency of the signal is low, the inductance increases, making it necessary to have a large inductor. A conventional electronic...
Communication lines in wire communication systems are usually used as power lines. The ac communication signal and dc supply power are separated at the input part in a powered terminal. Conventional well-known separators utilize the combined circuits of inductors and capacitors. When the frequency of the signal is at its lowest, the inductance increases, making it necessary to have a large inductor...
An on-chip buck converter with 3D chip stacking is proposed and the operation is experimentally verified. The manufactured converter achieves a maximum power efficiency of 62% for an output current of 70mA with a switching frequency of 200MHz and a 2x2mm on-chip LC output filter in 0.35mum CMOS. The use of glass epoxy interposer to increase the maximum power efficiency up to 71.3%, and the power efficiency...
A magnetic feedback method for enhancing the reverse isolation of low-voltage (1.2-V), single-transistor CMOS low-noise amplifiers (LNAs) is presented. The method neutralizes the gate-drain overlap capacitance of the amplifying transistor, allowing for adequate reverse isolation without gain reduction. The method does not require a differential LNA topology and input matching is facilitated since...
A high intercept points, cost-effective, and power-efficient switching FET double balanced mixer (DBM) is reported. The Switching FET DBM demonstrated in this work offers input intercept points (IIP3) and conversion loss typically 44 dBm and 8.5 dB respectively with 15 dBm LO power for the frequency band (RF: 900-2150 MHz, LO: 850-1950 MHz, IF: 50-200 MHz). The measured interport isolation is typically...
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