Please use this identifier to cite or link to this item: http://hdl.handle.net/1959.14/146651
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- Title
- Multioctave frequency selective surface reflector for ultrawideband antennas
- Related
- IEEE antennas and wireless propagation letters, Vol. 10, (2011), p.219-222
- DOI
- 10.1109/LAWP.2011.2130509
- Publisher
- IEEE
- Date
- 2011
- Author/Creator
- Ranga, Yogesh
- Author/Creator
- Matekovits, Ladislau
- Author/Creator
- Esselle, Karu P
- Author/Creator
- Weily, Andrew R
- Description
- In this letter, we demonstrate the gain enhancement of an ultrawideband (UWB) antenna, achieved using an appropriately designed multioctave dual-layer frequency selective surface (FSS) reflector. The proposed novel FSS reflects effectively in phase over a bandwidth of about 120%. Hence, significant enhancement in antenna gain has been achieved with a low-profile configuration without compromising the impedance bandwidth of the UWB antenna. The proposed FSS reflector has a low transmission coefficient and linearly decreasing phase over an ultra-wide frequency band, which is the key requirement for providing an effectively in-phase reflection at the antenna plane. The composite structure is compact, with a total height of λ/4, where λ is the free-space wavelength at the lowest operating frequency of 3 GHz. Experimental results show an impedance bandwidth of 122%. The antenna gain is maintained around 7.5 dBi from 3 to 7 GHz. Between 714 GHz, the antenna is more directie with a gain of about 9 dBi with ± 0.5 dB variation. Experimental measurements confirm the predicted wideband antenna performance and gain enhancement due to the FSS reflector.
- Description
- 4 page(s)
- Subject Keyword
- Frequency selective surface (FSS)
- Subject Keyword
- periodic structures
- Subject Keyword
- ultrawideband (UWB)
- Resource Type
- journal article
- Organisation
- Macquarie University. Dept. of Electronic Engineering
- Identifier
- http://hdl.handle.net/1959.14/146651
- Identifier
- ISSN:1536-1225
- Identifier
- mq_res-ext-2-s2.0-79953269564
- Language
- eng
- Reviewed
