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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Chebihi, A. Luxey, C. Diallo, A. Le Thuc, P. Staraj, R. |
| Copyright Year | 2002 |
| Abstract | In this letter, a novel port-to-port isolation technique suitable for a two-antenna system positioned at the top corner of a mobile phone is presented. The chosen planar inverted-F antennas (PIFAs) are intended to operate in the UMTS band [1.92-2.17] GHz and more precisely in the UMTS Rx band for diversity purpose. First, the distance between the PIFAs is severely reduced to 4 mm (0.027 lambda0) in order to obtain a very compact system. This proximal placement causes an increase of the insertion loss between the feeding ports of the PIFAs and therefore degrades the overall diversity performance of the two-antenna system. To compensate for this effect, the neutralization technique previously proposed by the same authors is implemented. Then, a novel way to implement this technique is studied to further improve the PIFAs' port-to-port isolation. It consists in achieving the neutralization of the antennas trough folded lines connected to the printed circuit board (PCB). A new prototype is fabricated and measured. The S-parameters and the total efficiency are presented. Additionally, the most important diversity metrics are computed to evaluate the potential of this novel two-antenna system for diversity applications in the UMTS Rx mode. |
| Sponsorship | IEEE Antennas and Propagation Society |
| Starting Page | 665 |
| Ending Page | 668 |
| Page Count | 4 |
| File Size | 547900 |
| File Format | |
| ISSN | 15361225 |
| Volume Number | 7 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-01-01 |
| Publisher Place | U.S.A. |
| Access Restriction | One Nation One Subscription (ONOS) |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | 3G mobile communication Mobile handsets Mobile antennas Microstrip antennas Telephone sets MIMO Antennas and propagation Insertion loss Degradation Performance loss diversity gain Small antennas planar inverted-F antenna (PIFA) mobile phones total efficiency isolation |
| Content Type | Text |
| Resource Type | Article |
| Subject | Electrical and Electronic Engineering |
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