## Willwerth, "Maximum Directivity of a Series-Fed Microstrip Array Antenna for Wireless Application

- H. Aumann, F. K. Tuttle
- IEEE International Symposium on Antennas and…
- 2011

@article{Aumann2013TheDO, title={The directivity of a Yagi-Uda antenna from an effective propagation constant}, author={Herbert M. Aumann and Anu Myne and Kristan A. Tuttle}, journal={2013 IEEE Antennas and Propagation Society International Symposium (APSURSI)}, year={2013}, pages={1514-1515} }

- Published 2013 in 2013 IEEE Antennas and Propagation Society…

A technique is presented for determining the directivity of a long, uniform Yagi-Uda antenna. It is shown that the maximum directivity is limited by the propagation constant of the particular antenna structure. The propagation constant can be determined by means of a two-port antenna test fixture with M and M + 1 directors.

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