## 1 Introduction
A substrate of a dielectric constant of 10 and 3.88 mm thicknesses is utilized in the design. The antenna has a size of 45 \(\times\) 45 mm\({}^{2}\) and a peak gain of 2.2 dB. The antenna has a simple structure with a narrow 3 dB AR from 1.572 to 1.578 GHz (0.4%). The antenna has a narrow band of 3 dB AR bandwidth with a large size. A 3D with complex structure microstrip antenna is introduced in [10]. An L-shaped slot is etched in the patch. The antenna is operated around 1.9 (27.2%). A substrate of a dielectric constant of 2.7 and 9 mm thicknesses is utilized in the design. The antenna has a size of 80 \(\times\) 80 mm\({}^{2}\) and a peak gain of 4.3 dB. The antenna has a 3 dB AR bandwidth of 3%. The antenna has a complex structure with a large size. In [12], a microstrip antenna with an H-shaped and reactive impedance surface (RIS) is investigated. The antenna is operated from 4.64 to 7.3 GHz (44.5%). The RO4003 substrate with 5.88 mm is utilized in the design. The antenna has a size of 32 \(\times\) 32 mm\({}^{2}\). The antenna has a peak gain of 7.2 dB. Additionally, the antenna has a 3 dB AR bandwidth of 27.5% from 4.55 to 6 GHz. The antenna has a complex structure and it is utilized for WLAN communication. A slot antenna with a CPW feed is introduced in [13]. The antenna is operated from 1.78 to 5.64 GHz (104%). The 1.66 mm FR4 substrate is utilized in the design. The antenna has a size of 54 \(\times\) 54 mm\({}^{2}\) and a peak gain of 3.8 dB. Additionally, the antenna has a 3 dB AR bandwidth of 58.6% from 2.85 to 5.21 GHz. The antenna has a simple structure with a large size and it is utilized for WLAN communication. Moreover, some modifications are utilized in the monopole antenna to increase the 3 dB AR bandwidth. Lumped capacitors are used in [15]. An inverted U-shaped monopole antenna attached to lumped capacitors is used to generate the CP operation. The antenna is operated from 3.75 to 7 GHz (60.5%). A substrate of a dielectric constant of 2.2 and 1.52 mmthicknesses is utilized in the design. The antenna has a size of 52 \(\times\) 55 mm\({}^{2}\) and a peak gain of 4.8 dB. Additionally, it has a 3 dB AR bandwidth of 4% from 4.25 to 5.95 GHz. The antenna has a simple structure with a large size and works for wireless communication. Parasitic strips are investigated in [16; 18]. A Y-shaped monopole antenna is suggested in [19]. The antenna is operated from 2.25 to 2.35 GHz (28.6%). A substrate of a dielectric constant of 2.2 and 3.1 mm thicknesses is utilized in the design. The antenna has a size of 50 \(\times\) 55 mm\({}^{2}\) and a peak gain of 2.9 dB. Additionally, it has a 3 dB AR bandwidth of 4% from 2.25 to 2.35 GHz. The antenna has a simple structure with a large size and works for satellite communication. A slot antenna with an L-shape is suggested in [22]. An L-shaped monopole slot antenna with a C-shaped feed is utilized to generate the CP operation. The antenna is operated from 1.48 to 1.93 GHz (30%). The 0.8 mm FR4 substrate is utilized in the design. The antenna has a size of 70 \(\times\) 70 mm\({}^{2}\) and a peak gain of 2.45 dB. Additionally, it has a 3 dB AR bandwidth of 32% from 1.42 to 1.97 GHz. The antenna has a simple structure with a large size and works for satellite communication. A parasitic open-loop resonator is added to a rectangular monopole antenna to generate the CP operation. The antenna is operated from 1.48 to 4.24 GHz (96.5%). The 1 mm FR4 substrate is utilized in the design. The antenna has a size of 50 \(\times\) 55 mm\({}^{2}\) and a peak gain of 3.5 dB. Additionally, the ground plane is modified to increase the 3 dB AR bandwidth to 63.3% from 2.05 to 3.95 GHz. The antenna has a simple structure with a wideband 3 dB AR bandwidth and a large size. A wide-band CP antenna is introduced in this work. A U-shaped radiator on the front side, a partial ground plane with two rectangle slots, and a quadrilateral-shaped parasitic strip on the back side are utilized to produce the CP feature.