A Miniaturized Wide-Band Antenna Based on the Epsilon Negative Transmission Line for Wireless Communication Devices

Abstract

A compact wide-band planar antenna is proposed using the metamaterial transmission line. The motivation of this study is to overcome the problem of low bandwidth while designing a miniaturized antenna. The proposed design consists of a rectangular patch and a squareshaped split-ring resonator (SSSRR) on the asymmetric ground plane. Strip lines are provided to connect the right ground plane to obtain the shunt inductances and improve the bandwidth. This antenna has a miniature physical size of 20×28×1.6 mm 3 corresponding to the electrical size of 0.16λo × 0.23λo × 0.013λo, where λo is the free space wavelength at the resonant frequency 2.51 GHz. The obtained results show that this antenna has wide-band from 2.2 GHz to 12.63 GHz, which makes it a good candidate for cover various standards of WLAN (2.4/5.2/5.8 GHz), WiMAX (2.5/3.5/5.5 GHz), satellite TV (7.14 GHz), and X-band (10.19/ 12.02 GHz). The proposed antenna simulations and analyses were performed using the CST simulator.

Prediction of English Scores of College Students Based on Multi-source Data Fusion and Social Behavior Analysis

“…On smart campus, the various wireless access points (APs) can be regarded as Wi-Fi probes to collect the data from mobile devices with Wi-Fi access function. Under the IEEE802.11 protocol, the data collected by Wi-Fi probes contain three fields: media access control (MAC) address, received signal strength indicator (RSSI), and timestamp of the received signal [12]:…”

Design and analysis of single and multi‐input multioutput triple‐band metamaterial inspired antennas for WiMAX, WLAN, and satellite applications

“…The MIMO antenna design requires a compact patch, and various approaches have appeared in the literature to provide a miniature antenna by using the fractal technique or by adding parasitic strips 10–12 and also apply the method of the composite right‐/left‐handed transmission line (CRLH‐TL), mμ or epsilon/negative transmission line 13–15 . The more common between of them is a new characteristic of MTM named zeroth‐order resonance (ZOR); in this mode, the phase constant keeps to zero, which corresponds to an infinite wavelength; hence, the antenna achieves resonant frequencies independent of its physical dimension that provides the opportunity for miniaturization 16–18 . In addition, ZOR frequency consists of the shunt or series elements of the CRLH‐TL, and the coplanar antennas have better design liberty to adjust series or shunt competes on the same sides 19–23 .…”

“…[13][14][15] The more common between of them is a new characteristic of MTM named zeroth-order resonance (ZOR); in this mode, the phase constant keeps to zero, which corresponds to an infinite wavelength; hence, the antenna achieves resonant frequencies independent of its physical dimension that provides the opportunity for miniaturization. [16][17][18] In addition, ZOR frequency consists of the shunt or series elements of the CRLH-TL, and the coplanar antennas have better design liberty to adjust series or shunt competes on the same sides. [19][20][21][22][23] In this paper, triple-band single and MIMO antennas have been suggested for WLAN/WiFi, WiMAX, satellite TV, and X-band communication requests.…”