Abstract
The theory of near-field phase transformation equips antenna designers with a tool to carry out more accurate electric field transformation, for even geometrically complex radiating structures, within the near-field region. The theory has now been demonstrated with a range of free-standing structures or surfaces, designed using dielectrics or printed planar metasurfaces. The development on the near-field structures can be divided into three phases. The first phase was focused on narrow frequency band for demonstrating the concept. The second phase of the development is to increase the bandwidth of near-field structures that can cover frequency band required for commercial wireless applications. In the third phase, the overall cost of near-field structures is drastically reduced using advanced manufacturing technique such as additive manufacturing. Some of the highlights of the developments in near-field structures include increasing broadside gain of classical resonant-cavity antennas by ~ 9 dB and realization of antenna beam steering in a conical region having an apex angle of 102 °.
| Original language | English |
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| Title of host publication | ICECOM 2019 23rd International Conference on Applied Electromagnetics and Communications |
| Subtitle of host publication | conference proceedings |
| Place of Publication | Piscataway, NJ |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Number of pages | 5 |
| ISBN (Electronic) | 9781728155142 |
| ISBN (Print) | 9781728155159 |
| DOIs | |
| Publication status | Published - 2019 |
| Event | 23rd International Conference on Applied Electromagnetics and Communications, ICECOM 2019 - Dubrovnik, Croatia Duration: 30 Sept 2019 → 2 Oct 2019 |
Conference
| Conference | 23rd International Conference on Applied Electromagnetics and Communications, ICECOM 2019 |
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| Country/Territory | Croatia |
| City | Dubrovnik |
| Period | 30/09/19 → 2/10/19 |