Ultrawideband Hybrid EBG/Ferrite Ground Plane for Low-Profile Array Antennas
- 8 January 2007
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Antennas and Propagation
- Vol. 55 (1), 4-12
- https://doi.org/10.1109/tap.2006.888455
Abstract
The design and analysis of an ultrawideband and low-profile hybrid electromagnetic band-gap (EBG)/ferrite ground plane is presented for implementation with antenna systems in airborne foliage penetrating radar and EW applications. The hybrid EBG/ferrite ground plane consists of an EBG structure with a ferrite slab placed on top of the structure's perfect electric conductor (PEC) ground plane. Reflectivity and phase analyses show that the hybrid EBG/ferrite ground plane offers ultrawideband operation beginning in the 100s of MHz with one design version offering an operational bandwidth exceeding 22:1 starting at 170 MHz. Additionally, analysis of the hybrid ground plane implemented with dipole antennas verifies that the hybrid ground plane effectively produces uni-directional radiation for bi-directional radiating antennas. The designed hybrid ground plane is also simulated with Raytheon's long slot array antenna and the obtained results further verify its ultrawideband performanceKeywords
This publication has 4 references indexed in Scilit:
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- "Infinite Bandwidth" long slot array antennaIEEE Antennas and Wireless Propagation Letters, 2005
- A low-profile Archimedean spiral antenna using an EBG ground planeIEEE Antennas and Wireless Propagation Letters, 2004
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