Summary
International Symposium on Antennas and Propagation
2012
Session Number:POS2
Session:
Number:POS2-27
Passive MIMO Transmission Using Load Modulation
Keisuke Terasaki, Kosuke Kinami, Naoki Honma,
pp.-
Publication Date:2012/10/29
Online ISSN:2188-5079
Summary:
In this paper, a passive MIMO (Multiple-Input Multiple-Output)transmission using load modulation is proposed. In this method, load modulation is applied to the multi-antenna, and a number of signals can be transmitted in parallel. The tag is defined as the multi-antenna that has load impedance, and it can control the reflective wave by switching its load impedance independently. The transmitted signals are estimated from the received signal vector observed at the reader using multi-antenna. The termination impedance pattern of the tag antennas is determined so as that its reflection coefficients are to be distant each other in complex number plane.