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Volume 31 Issue 3
Dec.  2010
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Xing Gao-xiang, Cai Zhi-ming. Numerical Synthesis for Constant Beamwidth Beam Pattern with Steering-Invariance[J]. Journal of Electronics & Information Technology, 2009, 31(3): 574-577. doi: 10.3724/SP.J.1146.2007.01796
Citation: Xing Gao-xiang, Cai Zhi-ming. Numerical Synthesis for Constant Beamwidth Beam Pattern with Steering-Invariance[J]. Journal of Electronics & Information Technology, 2009, 31(3): 574-577. doi: 10.3724/SP.J.1146.2007.01796

Numerical Synthesis for Constant Beamwidth Beam Pattern with Steering-Invariance

doi: 10.3724/SP.J.1146.2007.01796
  • Received Date: 2007-11-20
  • Rev Recd Date: 2008-05-05
  • Publish Date: 2009-03-19
  • A steering-invariant constant beamwidth beamforming algorithm is proposed. On the basis of main-lobe shape controlling idea, the proposed algorithm uses the main-lobe on some direction as reference main-lobe, and constructs the reference beampattern whose main-lobe direction is changed with different designed main-lobe direction by parallel moving the reference main-lobe, and keeps the height of side-lobe adjusted adaptively. Some virtual interfere sources are set on the look-in domain, the proposed algorithm adjusts the intension of them iteratively and makes the designed main-lobe on arbitrary direction inosculated the reference main-lobe, then the steering-invariant constant beamwidth beampattern is obtained after some iterative calculations. It is shown by simulation that the proposed algorithm can form the steering-invariant constant beamwidth beampattern effectively under the designed main-lobe direction of 60.
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