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- Title
REDUCING THE ARRAY SIZE FOR DOA ESTIMATION BY AN ANTENNA MODE SWITCH TECHNIQUE.
- Authors
Cheng, S.-C.; Lee, K.-C.
- Abstract
In this paper, an antenna-mode-switch technique is proposed to reduce the array size for the DOA (direction-of-arrival) estimation. Conventional DOA estimation requires many elements of antenna array to achieve high resolution, and then suffers from large array size. To improve such disadvantages, this paper proposes an antenna-mode-switch technique to reduce the required number of array elements. Our results show that the required number of array elements will be greatly reduced by using the proposed technique. Furthermore, a bow-tie antenna design for implementing the proposed antenna-mode-switch technique is also proposed. The results prove that high-resolution and accurate properties of such a practical antenna design is very close to those of the ideal antenna mode.
- Subjects
ANTENNAS (Electronics); ESTIMATION theory; ANTENNA arrays; DESIGN; LARGE space structures (Astronautics)
- Publication
Progress in Electromagnetics Research, 2012, Vol 131, p117
- ISSN
1070-4698
- Publication type
Article
- DOI
10.2528/pier12062203