Evaluation of antenna Q
- 1 January 1964
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 12 (1) , 23-27
- https://doi.org/10.1109/tap.1964.1138151
Abstract
A method is presented for evaluating theQof an antenna, where theQis defined as in conventional network theory. The method consists of subtracting the energy density associated with the power flow from the total energy density, thus enabling the magnetic and electric reactive energy to be computed. Specific application of the method is made to the evaluation of theQof spherical and cylindrical modes. It is verified that theQbecomes very large when the order of the mode exceedsk_{0}awhereais the radius of the sphere or cylinder on which the sources are located.Keywords
This publication has 7 references indexed in Scilit:
- Effect of antenna size on gain, bandwidth, and efficiencyJournal of Research of the National Bureau of Standards, Section D: Radio Propagation, 1960
- Maximum gain of a line source antenna if the distribution fuction is a finite fourier seriesIEEE Transactions on Antennas and Propagation, 1958
- On the gain and beamwidth of directional antennasIEEE Transactions on Antennas and Propagation, 1958
- On the synthesis of line-sources and infinite strip-sourcesIEEE Transactions on Antennas and Propagation, 1957
- Design of line-source antennas for narrow beamwidth and low side lobesTransactions of the IRE Professional Group on Antennas and Propagation, 1955
- A Note on Super-Gain Antenna ArraysProceedings of the IRE, 1951
- Physical Limitations of Omni-Directional AntennasJournal of Applied Physics, 1948