Distributed active radiation: Terahertz power-generation and beam-steering in CMOS
- Creators
- Sengupta, Kaushik
Abstract
Silicon technology can potentially create low-cost, integrated solutions at Terahertz frequency ranges. However, there are significant challenges in generating sufficient power at these frequency ranges with devices operating near or above f_(max) and further radiating it directly from the chip with integrated beam-control. In this paper, we review some of our work where we propose a true circuit-electromagnetics co-design approach which removes the artificial partitions among the different levels of abstraction in a conventional system design methodology. In the proposed inverse design approach, we start with the desired radiated THz field and aim to formulate metal surface-currents that could generate such a pattern. We then aim to synthesize the current configuration using a judicious combination of actives and passive on chip. This holistic approach led to the conceptual evolution of Distributed Active Radiator. As a proof-of-concept, we demonstrate the first integrated THz phased-array in CMOS with a 4×4 array of DARs generating nearly 10 dBm Effective-isotropic-radiated-power at 280 GHz and digitally controlled beam-scanning covering more than 80° in 2D space.
Additional Information
© 2013 IEEE.Additional details
- Eprint ID
- 43199
- Resolver ID
- CaltechAUTHORS:20140103-092957420
- Created
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2014-01-03Created from EPrint's datestamp field
- Updated
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2019-10-03Created from EPrint's last_modified field
- Other Numbering System Name
- INSPEC Accession Number
- Other Numbering System Identifier
- 13597898