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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yousefi, L. Mohajer-Iravani, B. Ramahi, O.M. |
| Copyright Year | 2002 |
| Abstract | In this letter, it is shown that using magneto-dielectric materials as substrate can increase the in-phase reflection bandwidth of electromagnetic bandgap (EBG) structures. To show this, a compact wideband EBG structure is designed and simulated. The numerical results show that this EBG has an in-phase reflection bandwidth of 70% which is several times greater than a conventional EBG resonating at the same frequency. Additionally, the new EBG surface has a smaller cell size, an important feature in the design of small antennas. As a demonstration of the effectiveness of the new structure, a low-profile unidirectional spiral antenna is designed to operate from 8 to 18 GHz. The improvement in the voltage standing wave ratio (VSWR) and gain of this antenna is presented while comparison is made to the case when using conventional EBG surface. |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 289 |
| Ending Page | 292 |
| Page Count | 4 |
| File Size | 965044 |
| File Format | |
| ISSN | 15361225 |
| Volume Number | 6 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2007-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Bandwidth Periodic structures Metamaterials Magnetic materials Electromagnetic reflection Dielectric substrates Wideband Frequency Spirals Voltage perfect magnetic conductor (PMC) Electromagnetic band-gap (EBG) structure magneto-dielectric materials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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