• Anurima Majumdar
• Sisir Kumar Das
• Annapurna Das

An ultra wide band circular ring patch antenna array is investigated in this paper. The initial design was a single element annular ring patch antenna fed with microstrip line on FR4 dielectric substrate with and thickness h=1.6 mm. Eigen value solution for 28 GHz yields inner radius a=3.0 mm and outer radius b= 4.05 mm for the patch. The single element shows a bandwidth of 37.2 % at 28.5 GHz with -21dB return loss. The antenna with four connected annular rings array, fed with microstrip line, shows enhanced bandwidth of 57.57 % at 28 GHz with return loss of -23.5 dB. The array also shows multi frequency response. The designed antennae can be used in wireless communication(Abstract).

Annular ring antenna, array antenna, ultra wide bandwidth antenna, wireless communication

"Design of a UWB Antenna Array for Ka Band Operation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 1, page no.29-33, January-2018, Available :http://www.jetir.org/papers/JETIR1801007.pdf

"Design of a UWB Antenna Array for Ka Band Operation", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 1, page no. pp29-33, January-2018, Available at : http://www.jetir.org/papers/JETIR1801007.pdf