Gain Improvement for Single Band Ultra-Wideband Antenna by Slots Technique

The most important challenge in antenna design is increasing its gain because antenna gain is considered one of the main factors in determining antenna performance for applications in communication engineering. The paper tackles antenna enhancement by optimum antenna design for geometrical parameters of Rectangular-Shaped Slotted Single-Band Microstrip Patch Antenna. To increase the gain, the researchers used an optimization process of slot insertion in the antenna patch plane. The sizes of slots in the patch have been effectively changed to increase the gain. The design improved the directivity of the antenna as well. The dimensions of the patch for the array-shaped antenna are (21×12×1.6) mm. Its substrate dimensions are (30 x 30 x 1.6) mm. The design is tested by the frequencies 3.1 GHz-10.6 GHz Ultra-Wideband. For single-band 10.4 GHz, the proposed antenna gain is 5.06 dB, and VSWR is less than 2. The design is simulated successfully by computer simulation technology. The research technique causes gain enhancement with the range of 1.2 dB to 5.06 dB. The technique provides high gain at a single band for wireless communication applications.