Results 251 to 260 of about 7,914 (285)

Optically Controlled mmW Phased Arrays

SPIE Proceedings, 1987
A design for an optically controlled millimeter wave phased array is explained. In this design, the millimeter waves are carried on an optical carrier, so no millimeter waveguides are necessary.
David C. Chang, Alan R. Mickelson
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Integrated Optical Phased Arrays on Silicon

ESSCIRC 2022- IEEE 48th European Solid State Circuits Conference (ESSCIRC), 2022
Farshid Ashtiani, Firooz Aflatouni
openaire   +1 more source

Fiber optic networks for phased arrays

17th Convention of Electrical and Electronics Engineers in Israel, 2002
An experimental fiber-optic network for distribution of microwave signals (1-2 GHz) is presented. Such networks can replace coaxial cables or waveguides inside phased arrays with the advantages of low weight and volume, mechanical flexibility and better immunity to interferences.
E. Levine, D. Kerner, C. Samson
openaire   +1 more source

Optical technique for broadbanding phased arrays

IEEE Transactions on Antennas and Propagation, 1975
An optical method for broadbanding a phased array is considered. A narrow band feed-through aperture lens comprised of pick-up elements, radiating elements, and 360\deg type phase shifters is fed by a small feed array with an intervening passive lens. The lens has fixed frequency-sensitive properties. The feed array has variable time delay compensators
openaire   +1 more source

Phased-array optical scanning

Applied Optics, 1979
J L, Hughes, A K, Ghatak
openaire   +2 more sources

Reprogrammable Optical Phased Array Switching

OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference, 2008
A novel reprogrammable optical phase array (ROPA) device is presented as a reconfigurable electro-optic element. One specific application of the ROPA, a 1:6 electro-optic space switch, is fully described.
openaire   +1 more source

Optical device with phased array

An optical device is described, comprising a first coupler (1) and a second coupler (3) connected by an array of channels (Wq). The device can be used as an array multiplexer or demultiplexer. The couplers are multimode imaging (MMI) components. The phase differences between inputs and outputs of the MMIs are compensated by length differences between ...
Amersfoort, M.R., Besse, P.A., Melchior, H., Smit, M.K.   +3 more
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Optical interconnects for phase array antennas

LEOS Summer Topical on Broadband Analog Optoelectronics: Devices and Systems, 2002
Optical interconnects offer several performance advantages for advanced phased-array antennas. New phased-array architecture designs are possible because of the use of photonic technology, which allows the antenna system to be partitioned differently.
openaire   +1 more source

Radiation Engineering and Optical Phased Array

2019
Radiation is a very important energy conversion process in engineering optics. Effective thermal radiation management can not only improve the efficiency of thermophotovoltaics but also realize passive radiative cooling, thermal cloak, and camouflage.
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Integrated optical phased array at 2μm wavelength band on silicon

2022
Yingjie Liu
exaly