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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Casares-Miranda, F.P. Camacho-Penalosa, C. Caloz, C. |
| Copyright Year | 1963 |
| Abstract | A novel high-gain active composite right/left-handed (CRLH) metamaterial leaky-wave antenna (LWA) is presented. This antenna, which is designed to operate at broadside, is constituted by passive CRLH leaky-wave sections interconnected by amplifiers, which regenerate the power progressively leaked out of the structure in the radiation process in order to increase the effective aperture of the antenna and thereby its gain. The gain is further enhanced by a matching regeneration effect induced by the quasi-unilateral nature of the amplifiers. Both the cases of quasi-uniform and binomial field distributions, corresponding to maximum directivity and minimum side-lobe level, respectively, have been described. An active LWA prototype is demonstrated in transmission mode with a gain enhancement of 8.9 dB compared to its passive counterpart. The proposed antenna can attain an arbitrarily high gain by simple increase of the length of the structure, without penalty in terms of return loss and without requiring a complicated feeding network like conventional array antennas |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 2292 |
| Ending Page | 2300 |
| Page Count | 9 |
| File Size | 1782026 |
| File Format | |
| ISSN | 0018926X |
| Volume Number | 54 |
| Issue Number | 8 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-08-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Leaky wave antennas Metamaterials Prototypes Current distribution Aperture antennas Antenna feeds Power amplifiers Antenna arrays Power transmission lines Transmission line theory leaky-wave antennas (LWAs) Active antennas composite right/left-handed (CRLH) metamaterials |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electrical and Electronic Engineering |
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