Journal ArticleDOI
Power and Area-Efficient Adaptive Equalization at Microwave Frequencies
TLDR
The proposed technique, which is term the lumped parameter equalizer, addresses several of the problems associated with conventional microwave equalizers based on the tapped delay line structure and is suitable for combating inter-symbol-interference at very high data rates.Abstract:
We present a low power analog adaptive equalization technique suitable for combating inter-symbol-interference at very high data rates. The proposed technique, which we term the lumped parameter equalizer, addresses several of the problems associated with conventional microwave equalizers based on the tapped delay line structure. The theory is given, and simulation results comparing it with the performance of ideal tapped delay line filters are shown. Circuit implementations are discussed, along with the effect of nonidealities on equalizer performance.read more
Citations
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Journal ArticleDOI
Design of Lumped-Component Programmable Delay Elements for Ultra-Wideband Beamforming
Naga Rajesh,Shanthi Pavan +1 more
TL;DR: A ladder filter-based programmable time-delay element for beamforming in ultra-wideband (UWB) systems and a lumped-element realization becomes possible by approximating e-std as a ratio of polynomials (based on Taylor and Padé expansions).
Journal ArticleDOI
Synthesis of Distributed Phase-Locked Oscillators
Mauricio Yanez,John C. Cartledge +1 more
TL;DR: Through simulation it is shown that the effects of transmission line loss, uneven tap weight spacing and terminal impedance mismatch can be mitigated by properly adjusting the tap weights of the oscillator.
Proceedings ArticleDOI
Programmable analog pulse shaping for ultra-wideband applications
Naga Rajesh,Shanthi Pavan +1 more
TL;DR: This work presents a programmable pulse shaping filter based on singly-terminated LC ladders that by appropriate setting of the filter taps, a variety of shapes related to a Gaussian pulse can be generated.
Proceedings ArticleDOI
A lumped component programmable delay element for Ultra-Wideband beamforming
Naga Rajesh,Shanthi Pavan +1 more
TL;DR: A ladder filter based programmable time delay element for beamforming in Ultra-Wideband (UWB) systems is introduced and achieves lower power dissipation, better area efficiency, and finer delay and gain resolution more efficiently.
Proceedings ArticleDOI
A 10 Gbps eye opening monitor in 65nm CMOS
Sandeep Krishnan,Shanthi Pavan +1 more
TL;DR: This work describes the working principle and design details of a low cost, on-chip monitor circuit that enables the determination of the eye diagram and demonstrates the efficacy of the techniques.
References
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Journal ArticleDOI
Analysis and Design of Singly Terminated Transmission-Line FIR Adaptive Equalizers
Shanthi Pavan,Rajesh Tiruvuru +1 more
TL;DR: It is shown that resistive shunt compensation of transmission lines is a useful technique that results in dramatic improvements in the performance of singly terminated transversal filters, making them excellent candidates for LMS algorithm based adaptive equalization at gigabit speeds.
Proceedings ArticleDOI
A 40 Gb/s transversal filter in 0.18 /spl mu/m CMOS using distributed amplifiers
J. Sewter,Anthony Chan Carusone +1 more
TL;DR: It is the first reported CMOS transversal filter operating at 40 Gb/s and consumes up to 70 mW from a 1.8 V supply depending on the tap gains.
Patent
Improved integrated circuit implementation for power and area efficient adaptive equalization
TL;DR: In this article, a channel equalization involving receiving a signal from a channel associated with inter-symbol interference (ISI), providing the received signal to an LCR network comprising a plurality of inductors (L2, L4, L6, C5, C7, C8, C9, C10, C11, C12, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24, C25, C26, C27, C
Proceedings ArticleDOI
Power and area efficient high speed analog adaptive equalization
TL;DR: The proposed technique, which is term the continuous time equalizer (CTE), addresses several limitations associated with equalizers based on tapped delay lines and is suitable for combating inter-symbol-interference at very high data rates.
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