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In this paper, a novel high gain two stage Ultra wideband (UWB) Low Noise Amplifier (LNA) typology is proposed. The broadband matching and the flat gain are two important factors for the broadband circuits. Besides those factors, the minimal Noise Figure (NF), good linearity, and the lower power consumption are also desired. The common gate input stage configuration is used in the proposed LNA to...
A fully integrated 3.2 to 10 GHz multi-band QVCO for UWB low data rate (LDR) communication is presented in this paper. The QVCO design supports all channel frequencies of the IEEE 802.15.4a standard which consists of 8 high band channels between 6-10 GHz and 3 low band channels between 3-5 GHz. The QVCO generates 6.4-10.3 GHz covering all high band carrier frequencies while the low band carrier frequencies...
Current trends in wireless communications emphasize the development of UWB (Ultra-Wide Band with bandwidths greater than 500 MHz or 20% of center frequency) radios. As the size of the digital part scales down, more and more components are being pushed into the digital domain. As a consequence of this, in receiver architectures, the ADCs are being pushed more towards the antenna in the front end. This...
This paper presents a low-power low-noise amplifier (LNA) with switching bands for MB-OFDM Group-C and Group-D ultra-wideband wireless radio system. The LNA is designed and implemented in TSMC 0.18 mum . Simulation results show that power gain of 12.4 dB, input and output matching lower then - 8.5 dB and - 14.5 dB, and a minimum NF of 4.0 dB can be achieved, while the power consumption is 11.2 mW...
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