Ultrawideband (UWB) Antennas With Multiresonant Split-Ring Loops

Novel ultrawideband (UWB) antennas with multiresonant split-ring loops and with coplanar waveguide (CPW) feed are presented in this communication. Dual concentric microstrip split-ring loops with different geometrical ground planes have been analyzed and compared. UWB antennas are designed, of which...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2009-01, Vol.57 (1), p.256-260
Main Authors: Yang, G.M., Jin, R.H., Xiao, G.B., Vittoria, C., Harris, V.G., Sun, N.X.
Format: Article
Language:English
Subjects:
Antenna feeds
Antenna measurements
Antennas
Applied sciences
Arithmetic
Bandwidth
Coplanar waveguide (CPW)
Coplanar waveguides
Exact sciences and technology
Ground plane
Loss measurement
Microstrip
Noise levels
Progressions
Radiocommunications
split-ring loops (SRLs)
Telecommunications
Telecommunications and information theory
Transmission line measurements
Ultra wideband antennas
Ultra wideband technology
Ultrawideband
ultrawideband (UWB) antenna
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Summary:Novel ultrawideband (UWB) antennas with multiresonant split-ring loops and with coplanar waveguide (CPW) feed are presented in this communication. Dual concentric microstrip split-ring loops with different geometrical ground planes have been analyzed and compared. UWB antennas are designed, of which the dimension of each split-ring loop varies proportionally to the arithmetic progression sequence. The dimensions of the rectangular ground planes and the split-ring loops are tuned for achieving a very wide bandwidth. A tapered transmission line is adopted to improve the return loss performance in the required band. Measurement results show that the proposed UWB antennas have a wide bandwidth from 2 to 20 GHz, and the measured return losses are less than -10 dB in this band combined with relative stable radiation characteristics.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2008.2009744