A Compact Wideband Circularly Polarized Planar Filtenna Using Synthesis Technique for 5 GHz WLAN Application

A broad axial ratio bandwidth and wide angle coverage circularly polarized monopole antenna for wireless communication

“…To improve ARBW, several techniques are adopted and reported in Refs. [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20] One simple C-shaped broadband CPMA is realized and its ARBW is optimized by introducing a rectangular open loop strip and stub in ground plane. 2 In Midya et al 3 another broad axial ratio bandwidth CPMA was implemented by introducing G-shaped parasitic strip (PS) with a C-shaped radiator.…”

“…In addition, two compact CP antennas are implemented using stubs and slits and synthesis technique, respectively. 19,20 In addition, numerous techniques are also being applied to improve gain by applying metasurface, 21 antenna array with sequential phase feed structure [22][23][24] and metallic reflectors with defected side walls. 25 Nevertheless, ARBW and impedance bandwidth (IBW) plays an important role to cover maximum range of spectrum for different applications.…”

“…The major problem with CPMA is less axial ratio bandwidth (ARBW). To improve ARBW, several techniques are adopted and reported in Refs 2–20 . One simple C‐shaped broadband CPMA is realized and its ARBW is optimized by introducing a rectangular open loop strip and stub in ground plane 2 .…”

“…In Sharma et al, 18 characteristic mode analysis is done for verification of CP mode instead of conventional method. In addition, two compact CP antennas are implemented using stubs and slits and synthesis technique, respectively 19,20 . In addition, numerous techniques are also being applied to improve gain by applying metasurface, 21 antenna array with sequential phase feed structure 22–24 and metallic reflectors with defected side walls 25 .…”