T-shape slot in rectangular slot antenna to enlarge bandwidth for broadband communication

The bandwidth enhancement of rectangular slot antenna with H and T-shaped slot tuning for ultrawideband applications

“…The slot etching help to adjust for reducing the return loss at high frequency range as 8 GHz. The measured bandwidth of proposed antenna is 130.49% (2.82 -13.41 GHz) which has bandwidth more than traditional antenna [12,17] about 53.35% and 49.29%. The radiation patter of antenna was Omni-directional.…”

“…In this research, the design of proposed antenna used traditional antenna structure from [17] and was studied increasing bandwidth by T-shape slot etching on the rectangular stub and adding the tuning stub on ground plane [11][12][13][14][15][16] as shown in Figure 1. The antenna structure was designed and fabricated on print circuit board with FR4 base with the constant dielectric value of ( r ε ) 4.3 and the thickness (h) of 0.764 mm by the original antenna size as 30×35 mm 2 .…”

“…Therefore, this research is developed by use technique that help increasing bandwidth for ultrawideband frequency response but there are defect of antenna as large size [8][9][10], which can't put into wireless communication device. This problem is resolved by increasing bandwidth that T-shape slot on patch [11][12][13] and tuning stub on ground plane [14][15][16] with traditional antenna [17] to extend ultra-wideband by use CST Microwave Studio to adjust parameter and to develop the highest efficiency of prototype antenna.…”

Dual-Three Stepped Trident Ultra-Wideband Planar Monopole Antenna

“…It has size of 30 mm × 35 mm × 0.764 mm. A T-slot was introduced in rectangular radiating elements in [17] to enhance the impedance bandwidth of the antenna. As proposed in [18], partial ground plane is used to enhance the impedance bandwidth of the proposed antenna.…”