Abstract
This paper presents an improved two-antenna microwave passive direction finding system inspired by the human auditory system. By incorporating a head-like scatterer between two monopole antennas, both phase and magnitude information can be utilized to estimate the direction of arrival (DOA) of a microwave signal, thus eliminating ambiguities associated with phase wrapping at high frequency, just like human ears. In addition, better DOA sensitivity is demonstrated with the incorporation of the head-like scatterer. Both numerical modeling and experimental results of a simple X-band two-monopole configuration with symmetric and asymmetric scatterers are presented.
Original language | English (US) |
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Article number | 5765478 |
Pages (from-to) | 2691-2697 |
Number of pages | 7 |
Journal | IEEE Transactions on Antennas and Propagation |
Volume | 59 |
Issue number | 7 |
DOIs | |
State | Published - Jul 1 2011 |
Keywords
- Biological inspired
- direction of arrival (DOA) estimation
- monopole
ASJC Scopus subject areas
- Electrical and Electronic Engineering