Search

A study of printed cross‐dipole antenna with slow‐wave parasitic elements used to achieve high efficiency and directivity is presented. The proposed antenna is designed to operate at WLAN channels (5.15–5.85 GHz), and can produce dual‐orthogonal polarisation through a crossed structure. The printed slow‐wave elements play a role that concentrates on travelling wave and delays propagation of electromagnetic wave. Measurement results of this antenna show that it has high gain, low side‐lobe level and wide bandwidth. This proposed design has advantages in terms of manufacturing the antenna easily and optimising the radiation characteristics. [ABSTRACT FROM AUTHOR]

A hybrid structure consisting of a printed cross dipole and annular ring antennas with a pattern and polarisation diversity for a four‐channel multiple input multiple output system operating in a wireless local area network (LAN) (2.34–2.54 GHz) is presented. The entire antenna size is only 88 × 88 × 44 mm. The envelope correlation coefficient and mean effective gain are computed using measured far‐field radiation patterns. The measured − 10 dB impedance frequency bandwidths of the proposed antenna cover the whole operation bandwidths of wireless LAN with an isolation of less than − 15 dB. [ABSTRACT FROM AUTHOR]