Design of UWB Monopole Antenna with Dual Notched Bands Using One Modified Electromagnetic‐Bandgap Structure

Abstract

A modified electromagnetic-bandgap (M-EBG) structure and its application to planar monopole ultra-wideband (UWB) antenna are presented. The proposed M-EBG which comprises two strip patch and an edge-located via can perform dual notched bands. By properly designing and placing strip patch near the feedline, the proposed M-EBG not only possesses a simple structure and compact size but also exhibits good band rejection. Moreover, it is easy to tune the dual notched bands by altering the dimensions of the M-EBG. A demonstration antenna with dual band-notched characteristics is designed and fabricated to validate the proposed method. The results show that the proposed antenna can satisfy the requirements of VSWR < 2 over UWB 3.1–10.6 GHz, except for the rejected bands of the world interoperability for microwave access (WiMAX) and the wireless local area network (WLAN) at 3.5 GHz and 5.5 GHz, respectively.

Compact Uwb Antennas With Inverted E- And F-Shaped Slots for Bandnotch Characteristics

“…Moreover, with using DGS for this antenna, the bandwidth is improved which is about 3.1 to 11.47 GHz. The proposed inverted E-shaped notch antenna is compact in size compared to the design recently reported in [19][20][21][22][23][24][25][26]. The DGS ground structure has improved results for three proposed antennas.…”

“…This design has a compact size of 13×17 mm 2 and the thickness of 1.6 mm which gives a low profile antenna to cover the UWB band with band-rejection capability. In addition, the proposed antenna is compact compared to the designs recently reported in [19][20][21][22][23][24][25]. The band notching is achieved by embedding nearly inverted F-shaped slot in radiating patch to eliminate frequency band of 3.1 GHz to 3.8 GHz, and inverted E-slot in the microstrip patch has also eliminated two frequencies band including 2.68 to 3.55 GHz and 4.5 to 5.8 GHz.…”

Electromagnetic band-gap structured printed antennas: A feature-oriented survey

“…Based on this characteristic, several papers [120][121][122][123][124][125][126][127][128][129][130][131][132][133] have been published in the open literature for creating band-notch characteristics using EBG-structures. These are described in this section.…”

“…Yang et al 133 have proposed slotted-antenna with semicircular EBG to cover the dual notch characteristics of 4.55-5.46 GHz and 5.68-6.35 GHz band, simultaneously. Thus, the overall literature [120][121][122][123][124][125][126][127][128][129][130][131][132][133] is further summarized based on the method of coupling to the feed line and different notch features in Tables 7 and 8, respectively.…”

Design and Analysis of Two Novel CPW-Fed Dual Band-Notched Uwb Antennas With Modified Ground Structures

“…Also the antenna design approach in [27] has resulted in poor gain performance with a gain less than 2.3 dBi for lower UWB region from 3.1-9.0 GHz and below 2.8 dBi for 9.0-10.6 GHz, making the antenna perform badly in entire UWB region. Various deigns have been proposed in the literature achieving dual or triple band-notching [28][29][30]. Antenna configurations in [28,29] lack the coplanar approach, are bigger in size, and achieve lesser gain in entire UWB range than the reported antennas in this paper, while antenna in [30] is based on stepped impedance resonatordefected ground structure (SIR-DGS), possesses complex design, and is susceptible to fabrication errors which has resulted in distortion in radiation patterns in E-plane.…”