Abstract
Direction finding is potentially useful to whitespace radio applications. Direction finding capability opens the possibility of direction aware communication for channel sharing. However, direction finding systems are typically large, and thus, not suitable for many packages. An electrically small, co-located direction finding system [1] creates the possibility for direction finding on size-constrained applications. This system works by calibrating to the distorted antenna patterns of the co-located elements. To ensure repeatability in the measurement of the radiation patterns of these elements, carefully designed baluns must be implemented. If the antenna current is unbalanced, or the balun allows too much current on the cable, the radiation patterns change dramatically and the performance suffers. This work discusses the limitations and practical effects of these baluns at and away from the designed frequency of operation. Two types of baluns are examined: the quarter wavelength bazooka balun, and the folded bazooka balun.
Original language | English (US) |
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Title of host publication | 2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 |
DOIs | |
State | Published - 2010 |
Event | 2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 - Toronto, ON, Canada Duration: Jul 11 2010 → Jul 17 2010 |
Other
Other | 2010 IEEE International Symposium on Antennas and Propagation and CNC-USNC/URSI Radio Science Meeting - Leading the Wave, AP-S/URSI 2010 |
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Country/Territory | Canada |
City | Toronto, ON |
Period | 7/11/10 → 7/17/10 |
ASJC Scopus subject areas
- Computer Networks and Communications
- Hardware and Architecture