Band-Notched Uwb Monopole Antenna Design With Novel Feed for Taper Rectangular Radiating Patch

Abstract

In this paper, a novel dual notch bands Ultra Wide-Band (UWB) antenna for WLAN and WiMAX applications is presented. The antenna contains a taper rectangular monopole antenna with new feed line which is designed and modified for 2-12 GHz. To achieve notch band at WLAN frequencies, different methods are compared such as L-shape slots for one notch or dual rings in notch designing. On the other hand, the novel F-shape feed line is designed to achieve dual notch band characteristic. The effects of stubs parameters at notch frequencies are presented. The benefit of this novel feed line is designing multi-band and reconfigurable antenna by changing stub line parameters. The simulated results of prototype antenna are obtained with HFSS and CST. Total size of the antenna is 60 mm × 60 mm × 1.6 mm. It is fabricated on FR-4 low cost substrate and fed by 50 Ω microstrip line.

Investigation and design of an ultra-wideband fractal ring antenna for notch applications

“…Broadband antennas are suitable to overcome the complexities inherent in multiservice antenna technology, while CP antennas can help mitigate multipath effects in these applications. Various broadband CP antennas were reported [1][2][3][4][5][6][7][8][9]. These antennas used a slot or a patch of various shapes as a radiating element, and a microstrip or a coplanar waveguide (CPW) feedline for excitation.…”

“…IEEE 802.11a standard is utilizing 5.15-5.35 GHz and 5.725-5.825 GHz ranges for sending and receiving, respectively. IEEE 802.11bg uses 2.4 GHz (2.4-2.484 GHz) for WLAN applications [4,5]. Fractal patterns are broken or made into irregular fragments and families of complex shapes which have self-similarity or self-affinity in their geometrical structures.…”

Dual band antenna designing with composite right/left handed

“…Vias are used as shunt inductors but this inductance can be increased by combination of these Vias with other types of inductors such as spiral or meander structures . Microwave integrated circuit (MIC) technology is favored over other techniques in the implementation of antennas for UWB systems as it enables construction of antennas with low profile and light weight attributes . In addition, the antennas can be easily fabricated at low cost using MIC technology .…”

Compact printed ultra-wideband antenna with two notched stop bands for WiMAX and WLAN

“…Several UWB antennas with single/multiple band-notched characteristics have been reported in the literature. Some methods to achieve a band notched characteristics in a monopole printed antennas are cutting the slots on the radiating patch or on the ground plane such as cutting/inserting the U-shaped slot, inverted U-shaped slot, pair of L-shaped slots, pair of inverted-L shaped slits, C-shaped slot, nested C-shaped slots, split ring resonator, complementary split ring resonator, and fractal slot [4][5][6][7][8][9][10][11][12][13][14][15]21,22]. By utilizing combination of the aforementioned methods, UWB antenna with dual band-notched characteristics is designed and investigated.…”