Title :
Development and antenna range demonstration of an eight-element optically powered directly modulated receive UHF fiberoptic manifold
Author :
Goutzoulis, Anastasios P. ; Zomp, John M. ; Johnson, Andy H.
Author_Institution :
Electron. Sensors & Syst. Div., Northrop Grumman Corp., Pittsburgh, PA, USA
fDate :
11/1/1996 12:00:00 AM
Abstract :
We describe the development and antenna range demonstration of an eight-element optically powered directly modulated UHF fiberoptic manifold. Low-power consumption active laser diode drivers are used to set the link noise figure to below 3 dB without major sacrifice in link dynamic range, power is provided via light, propagating in a multimode fiber, and is converted to DC via photovoltaic converters. The manifold has a 75 MHz 3 dB bandwidth (350-425 MHz), it consumes 216 mW per channel (54 mA@4 V), has a two-tone dynamic range of 69 dB-MHz2/3 and a noise figure of 2.4 dB
Keywords :
antenna phased arrays; fibre optic sensors; laser beam applications; optical fibre telemetry; optical modulation; phased array radar; radar antennas; radar receivers; search radar; 2.4 dB; 216 mW; 350 to 425 MHz; 4 V; 54 mA; 75 MHz; active laser diode drivers; antenna range demonstration; digital beamforming; direct modulation; eight-element optically powered manifold; low-power consumption LD drivers; multimode fiber; phased arrays; photovoltaic converters; receive UHF fiberoptic manifold; surveillance radars; Antennas and propagation; Diode lasers; Dynamic range; Noise figure; Optical modulation; Optical noise; Optical propagation; Photovoltaic systems; Solar power generation; UHF antennas;
Journal_Title :
Lightwave Technology, Journal of
