Ultrawideband Low-Profile and Miniaturized Spoof Plasmonic Vivaldi Antenna for Base Station

Abstract

Stable radiation pattern, high gain, and miniaturization are necessary for the ultra-wideband antennas in the 2G/3G/4G/5G base station applications. Here, an ultrawideband and miniaturized spoof plasmonic antipodal Vivaldi antenna (AVA) is proposed, which is composed of the AVA and the loaded periodic grooves. The designed operating frequency band is from 1.8 GHz to 6 GHz, and the average gain is 7.24 dBi. Furthermore, the measured results show that the radiation patterns of the plasmonic AVA are stable. The measured results are in good agreement with the simulation results.

Passive Planar Microwave Devices

“…Isolation was observed to be higher than 18 dB, and the envelope correlation coefficient (ECC) was less than 0.07 for the MIMO/diversity antenna in the operating range of 3-16 GHz. Dai et al [5] proposed an ultra-wideband and miniaturized spoof plasmonic antipodal Vivaldi antenna (AVA) for ultra-wideband antenna applications, such as in the 2G/3G/4G/5G base stations. They designed and measured an antenna operating from 1.8 GHz to 6 GHz, with an average gain of 7.24 dBi.…”

An Ultra-Wideband Vivaldi Antenna System for Long-Distance Electromagnetic Detection

“…Ultrawideband (UWB) antennas have been increasingly applied in wireless communication, biomedical detection, and radar systems in recent years [1][2][3][4][5][6]. As a tapered slot antenna, the Vivaldi antenna is well-known for its high gain, directive radiation pattern, planar structure and fairly wide bandwidth [7], and it is one of the best options for the UWB technology [8,9]. Its small transverse spacing makes it a good candidate for antenna arrays [10].…”

Radioplasmonics: design of plasmonic milli-particles in air and absorbing media for antenna communication and human-body in-vivo applications.

“…These devices can be considered as plasmonic metamaterials [25] that use altered geometries to achieve an average plasmonic behavior in the RF domain. However, they in general involve complex designs and are poorly versatile since they are built upon a fixed geometry [17,24,26,27]. Complex designs can lead to a difficult comprehension of the phenomena involved and a difficult comparison with the knowledge in conventional antennas [19].…”

“…A novel Plasmonic concept is shown in macroscale with particle dimensions less than a few millimeters or centimeters [48], where it would be easy to carry out experiments to study complex plasmonic phenomena as, for instance, multiple particle coupling [21]. This work naturally includes previous efforts to define plasmonics in extremely low-energies [27,[48][49][50][51][52]. The latest ideas about SPs are simplified since "bulk" materials with simple geometries are used here.…”