Compact Uwb Planar Antenna With Triple Band Emi Reduction Characteristics for Wimax/Wlan/X-Band Satellite Downlink Frequency

Abstract

Abstract-A new compact and simple design of UWB antenna with triple band-notched characteristic is proposed in this paper. The first band notch for 3.3-3.8 GHz (WiMAX) is created by cutting a line slot in the radiating patch. The second band rejection for 5.1-5.8 GHz (WLAN) is achieved by etching out an elliptical split ring resonator (ESRR) from the patch placed just above the feed line and patch junction. And the third notch for 7.25 GHz-7.75 GHz (X-band satellite downlink frequency) is created using rectangular split ring resonator (RSRR) in the feed line. Each notch can be adjusted without disturbing the others. A 10 dB return loss wide bandwidth (3.1-10.6 GHz) and VSWR > 2 for the stopbands has been measured.

Planar Multi Notch Band Antenna In-band Gain Enhanced by Epsilon-near-zero Non-absorptive Metasurface

“…The reference antenna used in this work is a planar UWB antenna with triple band notch characteristics for EMI reduction for WiMAX (3.5 GHz), WLAN (5.5 GHz), and X-band satellite down-link frequency (7.5 GHz) which occupy frequency bands within the designated UWB bandwidth [1]. The antenna is designed with a half-circular radiating patch having a radius of 14 mm on an FR4 substrate of 28 mm × 28 mm dimension to match the size of the metasurface.…”

“…The allocation of the UWB spectrum (3.1 to 10.6 GHz) for commercial communication purposes by the US Federal Communications Commission (FCC) in the year 2002 resulted in the increased demand of notch band antennas to overcome the problem of in-band electromagnetic interference (EMI). The most preferable designs presented for this purpose are printed antennas due to their low profile, planar structure, light weight, and ease of fabrication [1,2]. It is noticed that obtaining high gain in printed notch band antennas is quite difficult.…”