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Design of a ripple free switching mode power converter is a challenging task in power electronics industry. The conventional method for ripple reduction is to use passive filters, which makes the system bulky. Hybrid structured converters are introduced to reduce the ripple without using bulky output capacitors. In this type of converters, to cancel the ripple, opposite current / voltage of the ripple...
This article presents the design of a novel quad band LNA operating in the GSM 0.9GHz/GSM 1.8GHz and ZigBee 0.9GHz/WLAN 2.4GHz communication standards. This pseudo-concurrent architecture uses a one bit mode switch for selecting between the frequency bands. An RF switch is implemented before the Low Noise Amplifier (LNA) module to improve the insertion loss and isolation between the frequency bands...
This article presents the design of a fully concurrent dual-band Low Noise Amplifier (LNA) operating in the GSM 0.9GHz & BLUETOOTH 2.4GHz communication standards. The fully concurrent LNA is designed and simulated in CADENCE using 130nm UMC technology. The dual-band LNA has been designed from the system viewpoint to provide a higher gain at the high band in order to compensate the high-band...
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