Abstract
In this paper, we present an overview of our recent works on artificial dielectric layers (ADLs), used to enhance the radiation efficiency of planar printed antennas and arrays. The artificial material is realized by introducing planar sub-resonant metallic inclusions in a host material. This allows to enhance the permittivity of the host medium, which is characterized by high anisotropy. An analytical method has been developed to model the ADLs, valid for arbitrary number of layers and generic illumination. After a general description of this method, two design examples are presented. The first utilizes a single ADL slab as a superstrate of an on-chip double slot antenna operating at 300 GHz. Simulated and measured results show an improvement of the antenna gain and overall efficiency of about 2 dB. The second example exploits the use of the ADLs for the design of wideband, wide-scan planar phased arrays. A connected-slot array is loaded with an ADL superstate, to achieve wide-scan capability, up to 50 degrees in all azimuth planes, over an octave bandwidth.
| Original language | English |
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| Title of host publication | 2015 International Symposium on Antennas and Propagation, ISAP 2015 |
| Place of Publication | Piscataway, NJ |
| Publisher | IEEE |
| Pages | 1-4 |
| Number of pages | 4 |
| ISBN (Electronic) | 978-4-8855-2302-1 |
| ISBN (Print) | 978-4-88552-303-8 |
| Publication status | Published - 2016 |
| Event | 2015 IEEE International Symposium on Antennas and Propagation: ISAP 2015 - Hobart, TAS, Australia Duration: 9 Nov 2015 → 12 Nov 2015 |
Conference
| Conference | 2015 IEEE International Symposium on Antennas and Propagation |
|---|---|
| Country/Territory | Australia |
| City | Hobart, TAS |
| Period | 9/11/15 → 12/11/15 |
Bibliographical note
Accepted author manuscriptKeywords
- Dielectrics
- Antenna measurements
- Antenna radiation patterns
- Loaded antennas
- Antenna arrays
- Slabs