Polarization Reconfigurable Broadband Rectenna With Tunable Matching Network for Microwave Power Transmission

A broadband polarization reconfigurable rectenna is proposed, which can operate in three polarization modes. The receiving antenna of the rectenna is a polarization reconfigurable planar monopole antenna. By installing switches on the feeding network, the antenna can switch to receive electromagneti...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2016-03, Vol.64 (3), p.1136-1141
Main Authors: Lu, Ping, Yang, Xue-Song, Li, Jia-Lin, Wang, Bing-Zhong
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Broadband
Broadband antennas
Broadband communication
Matching
Networks
Polarization
polarization reconfigurable rectenna
Receiving antennas
Rectennas
Rectifying circuits
stable efficiency
Switches
Switching theory
tunable matching network
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Summary:A broadband polarization reconfigurable rectenna is proposed, which can operate in three polarization modes. The receiving antenna of the rectenna is a polarization reconfigurable planar monopole antenna. By installing switches on the feeding network, the antenna can switch to receive electromagnetic (EM) waves with different polarizations, including linear polarization (LP), right-hand and left-hand circular polarizations (RHCP/LHCP). To achieve stable conversion efficiency of the rectenna (n r ) in all the modes within a wide frequency band, a tunable matching network is inserted between the rectifying circuit and the antenna. The measured n r changes from 23.8% to 31.9% in the LP mode within 5.1-5.8 GHz and from 22.7% to 24.5% in the CP modes over 5.8-6 GHz. Compared to rectennas with conventional broadband matching network, the proposed rectenna exhibits more stable conversion efficiency.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2016.2518198