Graphene-based wide band semi-flexible array antenna with parasitic patch for smart wireless devices

In this paper, a semi-flexible 2 x 1 array antenna is proposed with epoxy glass fiber and graphene as patch and ground, respectively. Microstrip patch antenna with a center parasitic patch of half-wavelength and slot in the radiating patch have been incorporated for the bandwidth enhancement in order of 79.56% (2.21-5.13 GHz). The antenna has an overall size of 0.30 lambda x 0.24 lambda at a lower frequency of operation (2.45 GHz). The incorporation of slotted Graphene in radiating element leads to a wideband regime with satisfactory gain values of 2.73 and 3.744 dBi at 2.40 and 4.0 GHz, respectively. Antenna radiation efficiency in the range of 78% with linear polarization makes the antenna appropriate for WLAN band and smart wireless devices application.

Automated summary

This paper proposes a semi-flexible 2 x 1 array antenna with epoxy glass fiber and graphene as patch and ground, respectively. The antenna incorporates a microstrip patch antenna with a center parasitic patch and slot in the radiating patch for bandwidth enhancement. The antenna has a wide operating frequency range and satisfactory gain values, making it suitable for WLAN and smart wireless devices applications.