  With the development of wireless communication, industrial wireless sensor
networks (IWSNs) plays an important role in monitoring and control systems. In
this paper, we extend the application of IWSNs into High Frequency Surface-Wave
Radar (HFSWR) system. The traditional antenna is replaced by mobile IWSNs. In
combination of the application precondition of super-directivity in HF band and
circular topology of IWSNs, a super-directivity synthesis method is presented
for designing super-directivity array. In this method, the dominance of
external noise is ensured by constraining the Ratio of External to Internal
Noise (REIN) of the array, and the desired side lobe level is achieved by
implementing linear constraint. By using this method, the highest directivity
will be achieved in certain conditions. Using the designed super directive
circular array as sub-arrays, the compact receive antenna array is constructed,
the purpose of miniaturization is achieved. Simulation verifies that the
proposed method is correct and effective, the validity of the proposed method
has been proved.
