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Photonic system and method for tunable beamforming of the electric field radiated by a phased array antenna

Drummond, M. V. ; Nogueira, R.N.

Instituto de Telecomunicações

Invention Title: Photonic system and method for tunable beamforming of the electric field radiated by a phased array antenna

Patent Nr.: CN201080068628

Type: Patent

Regional Coverage: National

Grant Status: Granted

Priority Date: 08-07-2010

Filing Date: 19-03-2013

Granting Date: 27-04-2016

Country: China

Tech Offer: High-capacity photonic beamforming for phased antennas

Abstract
本发明公开了一种波束形成由相控阵天线产生的电场的光子系统。系统功能的操作依赖于光子可调谐延迟线,该光子可调谐光学延迟线包括Mach-Zehnder干涉仪,该Mach-Zehnder干涉仪具有在臂之间的预定义的时间延迟差。时间延迟通过调整在施加到干涉仪的延迟线的每一个上的功率之间的耦合比而调谐。提出了三个实施例,其中,它们之一独立于阵列基元天线的数量,仅使用单个延迟线和单个单色光源。