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The stripline fed 60GHz CP 2x4 patch array and LP grid array were designed in LTCC technology. The arrays with GCPW-stripline transitions were fabricated and measured in terms of the impedance matching performance and polarization characteristics. The wireless access advantage of the CP patch array over the LP grid array antenna is demonstrated.
To investigate the electromagnetic (EM) scattering from a PEC target located above a two-layered rough surface, the method of moments (MOM) is introduced in this paper. The incident wave is considered in the vertical polarization. The discrepancies of the bistatic scattering from this composite model and two-layered rough surface only are shown firstly. The influences of the relative permittivity...
A wideband circularly polarised slot antenna is presented. The slot antenna is fed by four microstrip line feeds orientated to have relative phases of 0deg, 90deg, 180deg and 270deg using a feed network comprising a pair of broadband 90deg hybrid. The proposed antenna delivers measured and simulated impedance bandwidths of 77.8% (1.02-2.32 GHz) and 89.1% (1.02-2.66 GHz), respectively, for standing...
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