Time-modulated antenna array with lossless switching network

Time-frame of the project: 1.5.2015-31.8.2015

A novel architecture for a time modulated antenna array (TMAA) based on single-pole double throw (SPDT) switches has been invented. The designedTMAA has lossless switching network because there is no power loss during the OFF state. In addition to improved efficiency, this TMAA provides beam-scanning capabilities. Moreover, the proposed TMAA has a constant instantaneous directivity, which is favorable for some applications. The architecture has been implemented as an aperture-coupled patch antenna array and verified as a smart antenna in a digital wireless communication system.

Time modulated antenna array

Beam-scanning radiation patterns

References:

1. G. Bogdan, Y. Yashchyshyn, M. Jarzynka, “Time-Modulated Antenna Array with Lossless Switching Network”, IEEE Antennas and Wireless Propagation Letters, vol. 15, 2016, pp. 1827-1830, doi: 10.1109/LAWP.2016.2538463