A CPW-Fed CSRR and Inverted U Slot Loaded Triple Band Notched Uwb Antenna

Abstract

A CPW-fed ultra-wideband (UWB) monopole antenna design which exhibits triple band stop functions is demonstrated. The proposed antenna comprises a Split Ring Resonator (SRR) and inverted U slots on a metallic patch to exhibit triple band-notch functions for WiMAX (3.3-3.6 GHz), Cband (3.8-4.2 GHz) and WLAN (5.1-5.8 GHz) bands. The slot width optimization is examined to tune the band-notch resonance frequency, and their effects are exhibited by surface current distributions. The antenna has compact size of 26 * 30 mm 2 , and it functions over 3 to 11 GHz with VSWR < 2 except notched bands. The SRR loaded dual band-notched antenna and amended inverted U slot integrated antenna both are fabricated and their VSWR, radiation characteristics measured. The antenna demonstrates excellent agreement between measured and calculated results.

Design of Compact UWB Slotted Hexagonal Monopole Antenna with 3.5/5.5 GHz Dual Band Rejection

“…Here U-shape slots on the patch and L-shape slot on the ground have produced band notch effect for WLAN and WiMAX applications. Similar notch properties have been reported in the articles [2][3][4][5][6][7][8][9][10][11][12] by etching different types of slots, the addition of stubs, parasitic elements, defected ground structure, modified feed line, EBG structure etc. In [2], a T-shape stubs and a pair of U-shaped parasitic elements have been introduced to achieve dual notched band.…”

“…Peddakrishna et al [11] have investigated a band-notched UWB antenna with a PI-shape slot on the radiating element and EBG slots on the ground plane. Recently Yadav et al [12] have stated an article with CSRR and U slots on the patch to achieve a similar goal.…”

Compact Ultra-Wideband Antenna With Triple Band Notch Characteristics Using Ebg Structures

“…Various techniques have been employed to realise UWB antennas with band-notch characteristics [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Slots of different shapes, such as U shape slot, U shape slot with parasitic strip, three C shape slot, and inverted U slots, have been introduced in the radiating patch and ground plane in [2][3][4][5][6][7]. The effective length of resonating slots of different shapes is about half a wavelength.…”

“…Introducing a slot is a useful technique to achieve band-notch characteristic [2,4]. Multiple slots can be designed to achieve multi-band notch characteristics [3,5,6]; however, multiple slots affect the gain, efficiency, and radiation pattern of an antenna. Another technique is the insertion of a resonator structure (such as split ring resonator and electric ring resonator) to obtain band-notch characteristics [8][9][10].…”