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This paper presents the design and implementation of a low power low phase noise Voltage Controlled Oscillator (VCO) using 0.25-micron Silicon-on-Sapphire (SOS) technology for low jitter low phase noise applications. The VCO comprised of a cross-coupled complementary LC core generating 3.6GHz output and a fully optimised Injection Locked Frequency Divider (ILFD) circuit generating the divide-by-two...
This paper presents the design and optimisation of high quality (Q) factor inductors using Micro/Nano Electro-Mechanical Systems (NEMS/MEMS) technology for 10 GHz to 20 GHz frequency band. Three inductors have been designed with rectangular, circular and symmetric topologies. Comparison has been made amongst the three to determine the best Q-factor. Inductors are designed on Silicon-on-Sapphire (SOS)...
This paper presents the design and implementation of a fully on-chip wideband LNA using 0.25-micron silicon-on-sapphire (SOS) technology for the next-generation radio telescope application, the square kilometre array (SKA), which demands ultra low noise and wideband operation. The proposed LNA design employs a cascaded inductive degeneration architecture with intermediate LC architecture, resulting...
This paper presents the design of a voltage controlled oscillator (VCO) for multi-standard wireless receiver covering global standards for mobile (GSM), digital communication systems (DCS), personal communication systems (PCS), and universal mobile telecommunication system (UMTS) standards. An effective frequency planning scheme that requires the VCO to tune from 3.2 GHz to 4.1 GHz and generate multiple...
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