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초록
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.
키워드
Antenna; miniaturization; planar antenna; spiral antenna; ultra-wideband (UWB); Antenna grounds; Miniature instruments; Radar antennas; Ultra-wideband (UWB); Wireless telecommunication systems; Directional patterns (antenna); Bandwidth limits; Gain flatness; Ground planes; Miniaturization; Omni-directional radiation patterns; Planar antenna; Radiating elements; Spiral antenna; Spiral elements; Surface currents; T-shaped microstrip; Ultra wide-band applications; Ultra-wide band antennas
- 제목
- Miniaturization of an Ultra-Wideband Antenna with Two Spiral Elements
- 저자
- Hong, Seokjin; Choi, Jaehoon
- 발행일
- 2009-02
- 유형
- Article
- 저널명
- ETRI Journal
- 권
- 31
- 호
- 1
- 페이지
- 71 ~ 73