Design of a metamaterial-inspired size-reduced wideband loop antenna with frequency scanning characteristic
- Title
- Design of a metamaterial-inspired size-reduced wideband loop antenna with frequency scanning characteristic
- Author
- 정경영
- Keywords
- LEAKY-WAVE ANTENNA; MONOPOLE
- Issue Date
- 2012-12
- Publisher
- INST ENGINEERING TECHNOLOGY-IET, MICHAEL FARADAY HOUSE SIX HILLS WAY STEVENAGE, HERTFORD SG1 2AY, ENGLAND
- Citation
- IET MICROWAVES ANTENNAS & PROPAGATION, 권:6, 호:11, 1227-1235
- Abstract
- A novel metamaterial-inspired loop antenna is proposed towards wideband operation, size reduction and frequency scanning capabilities. The high permeability characteristic of split rings resonators (SRRs) is utilised to reduce the size of a loop antenna. The SRRs also improve the impedance matching of the loop antenna, and thus significantly increase the bandwidth. Moreover, the proposed antenna has a frequency scanning capability because of the existence of SRRs. According to the measured results, the proposed antenna has a 10 dB operating band from 2.3 to 3.8 GHz with the absolute bandwidth of 1.5 GHz and the fractional bandwidth of 50%. Owing to SRRs, the first-order resonant frequency of the antenna shifts from 3.5 to 2.4 GHz, leading to an effective size reduction of 32% against the original loop antenna. The proposed antenna exhibits a continuous frequency scanning capability with the total scanning angle of 135 degrees, sweeping from 75 to -60 degrees.
- URI
- http://ieeexplore.ieee.org/document/6329097/http://hdl.handle.net/20.500.11754/54349
- ISSN
- 1751-8725
- DOI
- 10.1049/iet-map.2012.0006
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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