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Open Access
An Opto-VLSI-based tunable beamformer for radio frequency (RF) smart antennas is reported and its concept is demonstrated. RF beam steering is achieved by uploading appropriate phase holograms onto the Opto-VLSI processor so that RF true-time delays (TTDs) are independently generated for each element of the antenna array by simply using several erbium-doped fiber amplifier (EDFA) loops to realize independent tunable fiber lasers in conjunction with a dispersive optical fiber. Experimental results demonstrate RF beam steering up to 30° with a 4-element linear patch antenna array operating at 1.85 GHz.
Published in:
Photonics Journal, IEEE
(Volume:4
,
Issue:
3
)
Date of Publication: June 2012
- Page(s):
- 912 - 919
- ISSN :
- 1943-0655
- INSPEC Accession Number:
- 12767317
- Digital Object Identifier :
- 10.1109/JPHOT.2012.2198210
- Product Type:
- Journals & Magazines
- Date of Publication :
- 07 May 2012
- Date of Current Version :
- 31 May 2012
- Issue Date :
- June 2012
- Sponsored by :
- IEEE Photonics Society
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