A Compact Ultra-wide Band Antenna with a Notched Band for Wireless Communication Systems

Abstract

An ultra-wide band (UWB) antenna with C-band and X-band notches for wireless communication is presented. The designed structure is printed on a material of "Rogers 4350B" with ε r = 3.66, tan δ = 0.0037, and a thickness of 0.508 mm. This structure is designed to operate at a UWB range starting from 3.3 GHz up to 10.15 GHz with a stopband range from 6.75 GHz to 8.5 GHz. The rejected bands are the upper C-band (6.75 GHz-8 GHz) and the uplink X-band of the satellite (space to earth) from 7.25 GHz to 7.75 GHz. The overall antenna size is optimized, and its dimensions are 21 × 30 × 0.508 mm 3 . The antenna gain varies from 2.1 to 4.2 dBi at the passband, and its total radiation efficiency is 96.4%. The suggested structure is designed and simulated using CSTMWS software. Moreover, a prototype of the proposed structure is fabricated and measured. The fabrication process was done using photolithography techniques, and the measurements were done using an R&S vector network analyzer. Good agreement is achieved between the simulated and measured results.

A Compact Multi-band Monopole Antenna for 5G NR Coal Mine Applications

“…Besides, the designed triple-frequency antenna in terms of electrical size and operating bands has been compared with other available antennas as enlisted in Table 4. As shown in Table 4, it is also seen from the table that the designed third antenna has certain advantages such as more frequency bands than [5,13], relatively small size, and simple structure. The third antenna possesses a compact electrical size compared to [6,7,14,15] in comparison table.…”

“…In the state-of-the-art, numerous investigations have been conducted to explore the realization of a multi-band antenna [5][6][7][8][9][10][11][12][13][14][15][16]. In [5][6][7], multi-band antennas are designed on the basis of ultra-wide band (UWB) antennas by notching out of some specified frequency bands. Stacking some parasitic structures around the resonant frequency is commonly utilized in the design of multi-band antennas [8,9].…”