A four-channel array of rf modulated laser signals was generated in a LiNbO optical wa¨eguide network by heterodyne mixing 3 of two input lightwa¨es. Independent control of the rf phase in each channel was pro¨ided by integrated optical phase shifters. An optical frequency shifter was demonstrated t
Optical beam forming techniques for phased array antennas
β Scribed by Wu, Te -kao ;Chandler, Charles W.
- Publisher
- Springer
- Year
- 1993
- Tongue
- English
- Weight
- 358 KB
- Volume
- 14
- Category
- Article
- ISSN
- 0195-9271
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π SIMILAR VOLUMES
Self-calibration of a phased antenna array is required when distortions in the array are not known a priori and cannot be measured, or when turbulence in the propagation medium perturbs the radiation field. Two types of self-calibration procedures are discussed that have proved successful in experim
In this work, a C-band passi¨e microstrip four-element ( ) antenna-array beam-forming network BFN using high-directi¨ity directional couplers is described. In the transmit mode, an input signal is split into four equiphase equiamplitude parts so as to correctly feed the elements of a linearr2-D arra