Design and Implementation of Impulse Distributed Waveform Generator Time Interleaved Impulse Generator
S. Janaki1, Siva Yellampalli2
1S. Janaki, Department of VLSI Design and Embedded System, Visveswaraiah Technological University, VTU Extension Centre, UTL Technologies Ltd., Bangalore (Karnataka), India.
2Dr. Siva Yellampalli, Department of VLSI Design and Embedded System, Visveswaraiah Technological University, VTU Extension Centre, UTL Technologies Ltd., Bangalore (Karnataka), India.
Manuscript received on 11 June 2013 | Revised Manuscript received on 17 June 2013 | Manuscript Published on 30 June 2013 | PP: 155-159 | Volume-3 Issue-1, June 2013 | Retrieval Number: A0933063113/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper presents the design and implementation of impulse distributed waveform generator which generates UWB pulses with a bandwidth of 7GHz (1GHz to 8GHz).It utilizes time interleaved impulse generators to generate waveforms. Wide bandwidth is achieved by reducing the width of the impulses generated by time-interleaved impulse generators. Each of the impulse generators are triggered by the tunable delay unit which introduces the delay between the impulses generated. The Pulse shaping circuit shapes the impulses, by pulse amplitude tuning. The amplitude tuned impulses are combined together to obtain the waveform by using on-chip transmission line. Pulse width tuning and delay tuning makes this circuit reconfigurable. The pulse width can be tuned from 80ps to 1ns, and trigger delay can be varied from 30ps to 100ps.
Keywords: Delay Tuning, Impulse Generator, Pulse Width Tuning, Time-Interleaved.
Scope of the Article: Low-power design