A coaxial fed compact rectangular microstrip antenna with multi-layer configuration for WLAN 2.4/5.2/5.8 GHZ band applications

This paper presents a co-axial fed compact rectangular microstrip antenna with multi-layer arrangement for WLAN band (2.4–2.48, 5.15–5.825 GHz) applications. The designed antenna consist of rectangular patch with two open ended L shaped slots and ground plane with of two open ended rectangular slots. The antenna with single layer arrangement shows two resonant bands in PCS (1.851GHz–1.91GHz) and WiMAX (3.287–3.934GHz) frequency range. The multi layer configuration results in two resonant states of the proposed antenna in WLAN frequency range with maximum gain around 4.96dbi.