Optically beamformed wideband array performance

被引：22

作者：

Jofre, Lluis ^{[1
]}

Stoltidou, Chrysavgi ^{[1
]}

Blanch, Sebastian ^{[1
]}

Mengual, Teresa ^{[2
]}

Vidal, Borja ^{[2
]}

Marti, Javier ^{[2
]}

McKenzie, Iain ^{[3
]}

del Cura, J. M. ^{[4
]}

机构：

[1] Univ Politecn Cataluna, ES-08034 Barcelona, Spain

[2] Univ Politecn Valencia, Nanophoton Technol Ctr, Valencia 46022, Spain

[3] European Space Agcy, European Space Res & Technol Ctr, NL-2200 AG Noordwijk, Netherlands

[4] SENER, Aerosp Div, Madrid, Spain

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2008年 / 56卷 / 06期

关键词：

microwave photonics; optical beamforming; phased array antennas; spatial light modulator (SLM);

D O I：

10.1109/TAP.2008.923355

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Optical beamforming networks (OBFNs) are an interesting alternative for the design of wideband antenna arrays, mainly due to their low losses and weight, their high parallel processing capabilities and their electromagnetic immunity. Nevertheless, for a practical implementation, different technological and architectural tradeoffs need to be assessed. In this paper, the performance of an OBFN system is analytically studied and experimentally demonstrated. The study forms part of the optical beamforming network project, a multigroup research project supported by the European Space Agency (ESA). Differently from bulky free-space geometries, the architecture is based on fiber-optic delay lines for the time delays generation and on a spatial light modulator for the phase shifts generation. Experimental results for an X-band prototype are provided, showing beam steering accuracy, multibeam capability, amplitude distribution weighting and wideband operation.

引用

页码：1594 / 1604

页数：11

共 25 条

[1] ABDUL AA, 2006, PHOTONICS PRINCIPLES
[2] ANGELETTI P, 2002, P IEEE ANT PROP SOC, V4, P736
[3] BLANCH S, 1995, P INT S ANT PROP SOC, V1, P260
[4] CANTALLOUBE HMJ, 2003, P IEEE GARSS TOUL FR, P533
[5] *CASS HUYG, MISS SAT TIT
[6] DALMASES F, 2006, EUR C ANT PROP EUCAP
[7] DALMASES F, IEEE MED EL C MEL MA, P336
[8] DOLFI D, 1991, OPT LETT, V16, P225
[9] Efron U, 1995, Spatial Light Modulator Technology: Materials, Devices, and Applications
[10] Ender J. H. G., 2002, Proceedings 4th European Conference on Synthetic Aperture Radar. EUSAR 2002, P157

← 1 2 3 →