Design of a wideband continuous-wave photomixer antenna for terahertz wireless communication systems

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We propose a bandwidth-enhanced four-leaf-clover-shaped photomixer antenna for use in terahertz wireless communication systems. The antenna was designed with a highly resonant radiation element, a stable DC feed element with photonic bandgap structure, and two symmetrical parasitic elements electromagnetically coupled with the main radiator for bandwidth enhancement. The antenna was optimized to have a maximum antenna-efficiency bandwidth and maximum directivity on an extended hemispherical lens. The half-maximum antenna-efficiency bandwidth of this structure was approximately 16%, and it completely covered the 275-320 GHz band. The antenna produced a maximum antenna-efficiency of 18% and a maximum directivity of 25 dBi, with a 2.4 dBi variation within the frequency band of interest, thus promising for efficient and stable operation
Publisher
TAYLOR & FRANCIS LTD
Issue Date
2014-05
Language
English
Article Type
Article
Keywords

FUTURE; LENSES

Citation

JOURNAL OF ELECTROMAGNETIC WAVES AND APPLICATIONS, v.28, no.8, pp.976 - 988

ISSN
0920-5071
DOI
10.1080/09205071.2014.899169
URI
http://hdl.handle.net/10203/212676
Appears in Collection
PH-Journal Papers(저널논문)
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