Hybrid Analog–Digital Antenna Array With Built-in Image Injection Calibration
- 19 August 2014
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 62 (11), 5513-5523
- https://doi.org/10.1109/tap.2014.2349537
Abstract
This study presents a hybrid receiving array architecture that combines analog and digital beamforming to offer a solution for the phased-array feed and other multifunction receive-only applications. This architecture is capable of handling multiple beams forming simultaneous and precision beam steering. To further reduce the hardware counts of the online performance monitoring, a calibration method is proposed in which none of the transmitters or the dedicated distribution network are used. The hybrid architecture concept and built-in calibration are validated experimentally via a prototype. The system performance, including the statistical results of the baseband measurement, phase error, and radiation patterns under various array configurations, are illustrated. An effective phase tuning step of 0.1 ° , as well as a steering resolution at the subdegree level, is achieved, and the measured aperture distribution is in good agreement with that derived from the proposed online calibration.Keywords
This publication has 26 references indexed in Scilit:
- Phased array digital beamforming hardware development at Applied RadarPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2010
- Australian SKA Pathfinder: A High-Dynamic Range Wide-Field of View Survey TelescopeProceedings of the IEEE, 2009
- The Square Kilometre ArrayProceedings of the IEEE, 2009
- Phased array antenna design and characterization for next-generation radio telescopesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2009
- 32-channel X-band digital beamforming plug-and-play receive arrayPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Smart antenna systems for wireless applicationsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2004
- Antenna and receiver system with digital beamforming for satellite navigation and communicationsIEEE Transactions on Microwave Theory and Techniques, 2003
- Measurement and evaluation techniques for an airborne active phased array antennaPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- DBF array antenna systems at 8.45 GHzPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Software radio architecture with smart antennas: a tutorial on algorithms and complexityIEEE Journal on Selected Areas in Communications, 1999