Reconfigurable pixel-layer isolator for frequency-tunable on-frequency repeaters
View/Open
Reconfigurable pixel-layer isolator for frequency-tunable on-frequency repeaters (764,6Kb) (Restricted access)
Request copy
Què és aquest botó?
Aquest botó permet demanar una còpia d'un document restringit a l'autor. Es mostra quan:
- Disposem del correu electrònic de l'autor
- El document té una mida inferior a 20 Mb
- Es tracta d'un document d'accés restringit per decisió de l'autor o d'un document d'accés restringit per política de l'editorial
Cita com:
hdl:2117/22788
Document typeArticle
Defense date2014
Rights accessRestricted access - publisher's policy
Except where otherwise noted, content on this work
is licensed under a Creative Commons license
:
Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The maximum gain in on-frequency repeaters is limited by the isolation level between their two antennas due to close-loop stability conditions. In this letter, a novel pixel-layer isolator for tunable on-frequency repeaters is presented. The scattered field of the reconfigurable pixel layer is used to dynamically minimize the mutual coupling between the antennas. Insight is given on the linkage between coupling and reflection coefficients, and a useful design procedure is proposed. The optimized pixel repeater can tune the operating frequency over a 40% range, with tunable instantaneous bandwidth (1%-3%) and achieving a reliable isolation of 50 dB. The repeater has a radiation efficiency of 93% and a constant radiation pattern for the different configurations. Good agreement is obtained between simulations and measurements.
CitationRodrigo, D.; Diaz, E.; Jofre, L. Reconfigurable pixel-layer isolator for frequency-tunable on-frequency repeaters. "IEEE antennas and wireless propagation letters", 2014, vol. 13, p. 475-478.
ISSN1536-1225
Publisher versionhttp://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6755474
Files | Description | Size | Format | View |
---|---|---|---|---|
Reconfigurable ... on-frequency repeaters.pdf![]() | Reconfigurable pixel-layer isolator for frequency-tunable on-frequency repeaters | 764,6Kb | Restricted access |