Achieving Ratio Bandwidth of 25:1 From a Printed Antenna Using a Tapered Semi-Ring Feed

Achieving Ratio Bandwidth of 25:1 From a Printed Antenna Using a Tapered Semi-Ring Feed

A printed super-wideband (SWB) antenna that consists of an elliptical monopole and a trapezoid ground plane is presented. By introducing a tapered microstrip impedance transformer and implementing a semi-ring feed interface to the radiation patch, the bandwidth of the antenna is enhanced. The result...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2011, Vol.10, p.1333-1336
Hauptverfasser: Jianjun Liu, Esselle, Karu P., Hay, Stuart G., Shunshi Zhong
Format: Artikel
Sprache:eng
Schlagworte:
Antenna feeds
Antenna measurements
Bandwidth
Current distribution
Impedance
printed monopole
semi-ring feed
super-wideband (SWB)
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Zusammenfassung:A printed super-wideband (SWB) antenna that consists of an elliptical monopole and a trapezoid ground plane is presented. By introducing a tapered microstrip impedance transformer and implementing a semi-ring feed interface to the radiation patch, the bandwidth of the antenna is enhanced. The results demonstrate that the measured 2:1 VSWR bandwidth is from 1.08 to 27.4 GHz with a ratio bandwidth of 25:1. The antenna has a stable radiation pattern over this frequency band. It is suitable for wireless communication applications.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2011.2177800