“…Usually, UWB is performing with wide operating bandwidth, while designing a UWB antenna has some challenges like achieving large impedance bandwidth, low reflection coefficient, significant radiation pattern and space limitations. There are several narrowband applications within the UWB [2-6] like 3.3 GHz to 3.7 GHz of WiMAX [7], 3.3 to 3.8 GHz of C-band for ASEAN [8], lower frequency band (4.5 − 5.5 GHz) for 5G (fifth generation) applications [9], 5.15 GHz to 5.35 GHz and 5.725 to 5.825 GHz of WLAN [10], 7.25 to 7.75 GHz of satellite downlink communication for International Telecommunication Union (ITU) [11], 7.725 to 8.275 GHz of X-band [12] and so on. To improve the 358 performance of a planar UWB antenna, several methods can be applied like different patch shapes, partial ground, inset-fed, defected ground structure (DGS), coplanar waveguide (CPW) and various type of slots on the radiating patch [12,[13][14][15][16][17][18][19].…”