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As the complexity of the ocean environment, shape of towed array changes with time and space, so the accurate measurement shape of towed array is the key to improve the performance of signal processing. To solve this problem this paper proposes an estimation method based on genetic algorithm, firstly, established the objective function according to a known distance and azimuth of the target by beam...
Phase shifter with moveable dielectric wedge plate sandwiching the strip line in a tri-plate transmission line structure is proposed and designed for 3G basestation antenna. Numerical simulations indicate that phase-shift unit with saw-tooth shaped wedge dielectric may provide low return loss and insertion loss. The performance of the proposed wedge dielectric phase shifter is further demonstrated...
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