Antenna Radiation Efficiency Measurement in an Ultrawide Frequency Range
- 6 January 2009
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Wireless Propagation Letters
- Vol. 8, 72-75
- https://doi.org/10.1109/LAWP.2008.2011928
Abstract
Conventional antenna radiation efficiency measurement techniques, such as the Wheeler cap, are generally narrowband and, thus, well suited for resonant antennas. In this work, the Johnston-Geissler (J-G) method based on the Wheeler cap principle is used in a wide frequency range. First, a good agreement between measurement and simulation in an ultrawide frequency band is shown on a straight wire monopole antenna with different attenuators emulating antenna losses. Then, this technique is used to measure the radiation efficiency of several ultrawideband (UWB) antennas.Keywords
This publication has 8 references indexed in Scilit:
- Direct Measurement of Small Antenna Radiation Efficiency by Calorimetric MethodIEEE Transactions on Antennas and Propagation, 2006
- Planar trapezoidal and pentagonal monopoles with impedance bandwidths in excess of 10:1Published by Institute of Electrical and Electronics Engineers (IEEE) ,2003
- Measurement of UWB antenna efficiencyPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- An improved small antenna radiation-efficiency measurement methodIEEE Antennas and Propagation Magazine, 1998
- Comparison of three methods for the measurement of printed antenna efficiencyIEEE Transactions on Antennas and Propagation, 1988
- Radiometric measurement of antenna efficiencyElectronics Letters, 1985
- An analysis of the Wheeler method for measuring the radiating efficiency of antennasIEEE Transactions on Antennas and Propagation, 1977
- The Radiansphere around a Small AntennaProceedings of the IRE, 1959