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Radiation Efficiency of a Coplanar-fed Ultra-Wideband Antenna

Pires, N. ; Mendes, C. ; Koohestani, M. ; Skrivervik, A. ; Moreira, A. A.

Radiation Efficiency of a Coplanar-fed Ultra-Wideband Antenna, Proc IEEE AP-S/URSI International Symp., Chicago, United States, Vol. 1, pp. 1 - 2, July, 2012.

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This paper presents a study on the radiation efficiency of Ultra-Wideband (UWB) antennas. Measurement were made using a cavity-based method with source stirring. A novel post-processing filtering technique of the measured data is introduced. The approach was tested on a coplanar-line-fed UWB monopole. The efficiency of this antenna was also computed with two commercial electromagnetic packages. Simulations and measurement agree to predict a radiation efficiency of over 95% through the 3.1–10.6 GHz operating bandwidth.