Mustafijur Rahman

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This paper describes a 802.15.6 compliant 2360-2484MHz multiband transmitter that digitally multiplexes the appropriate phases from an 800MHz poly-phase filter output to generate &#x03C0;/4 DQPSK signals at 2.4GHz. Modulation at 1/3<sup>rd</sup> the RF frequency reduces the transmitter power consumption and enables channel selection using a PLL running at(More)
A low power low noise 0.7V mixer first RF frontend for an IEEE 802.15.6 narrowband receiver is presented which uses passive coupling based frequency translated mutual noise cancellation. Unlike traditional noise cancelling techniques we perform symmetrical noise cancellation of a fully differential structure where each path cancels the noise of the other at(More)
The design and simulation of a novel CMOS voltage mode LTA (Loser-take-all) circuit is described. The circuit employs additional inhibitory and local excitatory feedback based on a common voltage computation and this improves both speed and precision drastically. As a result, a single stage cell provides better resolution in comparison to previous works(More)
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