Zhou T.,National Key Laboratory of Electronic Information Control |
Fan B.,National Key Laboratory of Electronic Information Control |
Chen J.,National Key Laboratory of Electronic Information Control
Bandaoti Guangdian/Semiconductor Optoelectronics | Year: 2010
Optical beam forming is a new method for obtaining process gain in optical domain by weighting and spatial-filtering the RF signals from antenna array. It has some merits such as large bandwidth and uniform beam-direction independence on signal frequency. In this paper, the principles of optical beam forming are analyzed and its characteristics compared with phase-shift beam forming such as Buttler-matrix are discussed in the case of distorted problem of ultra-wide-band signals transferring beam-forming network. The results show that the optical beam forming has good performance in holding the signal characteristics both in time and frequency domain, as well as obtaining high process gain.