Abstract
The paper proposes an approach for immunizing the input impedance of a tag-antenna against disturbances by the proximity effect of external objects. The idea is to drive two symmetric closely-spaced antennas with out-of-phase excitations, resulting in a differential input impedance. When an object is placed in the close proximity of the antenna system, the coupling with the two symmetric antennas will be comparable over a wide range of angles around the array broadside. In such a coupling scenario the differential input impedance is maintained compared to its free-space value.
Original language | English |
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Title of host publication | Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE |
Number of pages | 2 |
Publisher | IEEE Press |
Publication date | 1 Dec 2013 |
Pages | 1492-1493 |
Article number | 6711405 |
ISBN (Print) | 978-1-4673-5315-1 |
ISBN (Electronic) | 978-1-4673-5317-5 |
DOIs | |
Publication status | Published - 1 Dec 2013 |
Event | Antennas and Propagation Society International Symposium 2013. APSURSI 2013. IEEE - Hilton, Orlando, United States Duration: 7 Jul 2013 → 13 Jul 2013 http://www.2013apsursi.org/ |
Conference
Conference | Antennas and Propagation Society International Symposium 2013. APSURSI 2013. IEEE |
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Location | Hilton |
Country/Territory | United States |
City | Orlando |
Period | 07/07/2013 → 13/07/2013 |
Internet address |
Series | I E E E Antennas and Propagation Society. International Symposium |
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ISSN | 1522-3965 |