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Miniaturization of an Ultra-Wideband Antenna with Two Spiral Elements
- Authors
- Hong, Seokjin; Choi, Jaehoon
- Issue Date
- Feb-2009
- Publisher
- WILEY
- Keywords
- Antenna; miniaturization; planar antenna; spiral antenna; ultra-wideband (UWB)
- Citation
- ETRI JOURNAL, v.31, no.1, pp.71 - 73
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- ETRI JOURNAL
- Volume
- 31
- Number
- 1
- Start Page
- 71
- End Page
- 73
- ISSN
- 1225-6463
- Abstract
- In this letter, novel antennas with two spiral elements are presented for ultra-wideband application. The original antenna consists of a T-shaped microstrip feed line, two spiral radiating elements, and a ground plane with two circular slots. It measures 30 mm x 40 mm x 1.6 mm. Spiral elements are used to increase the lower bandwidth limit. To further reduce the size of the antenna, the original antenna is cut in half by using the symmetry of the surface current distributions. The proposed antennas feature omnidirectional radiation patterns and good gainflatness.
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