Published May 1997
| public
Book Section - Chapter
Level-locked loop: a technique for broadband quadrature signal generation
Abstract
A method for precise wideband quadrature signal generation is presented. A divide-by-2 stage forms an adjustable phase quadrature signal generator. Its output phase error is converted to an error signal, which feeds back to the quadrature signal generator through an integrator, to correct the output phase difference. Using this method, a phase accuracy better than 0.5° is achieved over 40 MHz to 500 MHz of output frequency without any external tuning. The loop compensates for any circuit and layout mismatches, is not sensitive to distorted input LO signals, and has no inherent high frequency limitation.
Additional Information
© 1997 IEEE. Date of Current Version: 06 August 2002. Authors wish to thank M. Gholipour, A. Tabatabaie, S. Shah-Heidari, A. Arefpur, and A. Khalili-Azad for their contribution in the project and Mark Judson for the measurements.Additional details
- Eprint ID
- 28961
- DOI
- 10.1109/CICC.1997.606656
- Resolver ID
- CaltechAUTHORS:20120125-112220383
- Created
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2012-01-26Created from EPrint's datestamp field
- Updated
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2021-11-09Created from EPrint's last_modified field
- Other Numbering System Name
- INSPEC Accession Number
- Other Numbering System Identifier
- 5730320