This letter presents the design and performance measures of a printed dipole antenna with band rejection characteristics for ultrawideband (UWB) applications. The proposed antenna operates in the frequency range 3.656∼ 15.64 GHz with impedance bandwidth (VSWR &lt;2) of 11.027 GHz and maximum gain of 6.046 dBi. It consists of five dipole strips of different resonant length combined orthogonally for effective signal reception. Inverted L-shaped slots were introduced in the ground plane for WLAN band rejection. The band rejection is from 5.06 ∼6.012 GHz. The radiation pattern is nearly omnidirectional in both the elevation and azimuthal plane due to the orthogonal configuration of the dipole strips. The consistency of the radiation pattern exists within the operating band. The performance of the proposed antenna is confirmed by simulation and experimental method. © 2006 IEEE.

Shambavi K

Department of Communication Engineering

School of Electronics Engineering

Vellore Campus

Zachariah C Alex

Department of Sensor and Biomedical Technology

Alex Z.C.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

&nbsp;

&nbsp;

VIT University

Printed Dipole Antenna With Band Rejection Characteristics for UWB Applications

IEEE Antennas and Wireless Propagation Letters

A planar multi-ring monopole antenna for ultra wide band applications is presented in this paper. The proposed antenna is designed using concentric rings of width 1.3 mm which leads to improved band width, radiation efficiency and reduced size. The proposed antenna size is 30∗30∗1.6 mm3 which operates over a frequency range of 2.6 to 13.5 GHz. The radiation pattern is consistent in UWB range which is bidirectional in elevation plane and omnidirectional in azimuth plane. The radiation efficiency of the proposed antenna is 94.6%. © 2015 IEEE.

2015 2nd International Conference on Electronics and Communication Systems (ICECS)

Design of planar multi-ring monopole antenna for UWB applications

Design and performance measures of a printed multi strip monopole antenna for ultra-wideband application are presented. The proposed antenna consist of six quarter wavelength strips of different resonating frequency combined in a manner to provide wideband width. It operates in the frequency range 2.51∼10.61GHz with impedance bandwidth of 8.1 GHz. The radiation pattern is nearly Omni directional in the Azimuthal plane and bidirectional in the elevation plane and the consistency of the radiation pattern exist for almost for all frequency in the operating band. © 2015 IEEE.

Design of printed strip monopole antenna for UWB applications

A multi-fractal monopole antenna for Ultra wide band applications is presented in this paper. The proposed antenna consists of a combination of Koch and Sierpinski fractals within a ring. Use of multi-fractal technique leads to improved bandwidth, radiation efficiency and reduced size. The proposed antenna size is 19.5∗19.5∗1 mm3which operates over a frequency range of 4.2 to 10.3 GHz. Radiation pattern of the proposed antenna is stable over the operating range. © 2014 IEEE.

2014 International Conference on Green Computing Communication and Electrical Engineering (ICGCCEE)

Design of multi-fractal monopole antenna for UWB applications

An ultra wideband (UWB) monopole antenna with dual band-notch characteristic is proposed. Dual arm spiral resonators (DASR) are placed on both sides of the feed line to create band notches at 5.25 and 5.8 GHz for the upper and lower WLAN bands respectively. First the antenna is optimized individually for both upper and lower WLAN band-notch behaviors then embedded together for dual band-notch characteristic. The measured results ensure that two band notches are achieved, and the antenna can be used for UWB applications without any interference from WLAN band.

Fulltext

Progress In Electromagnetics Research C

DESIGN OF DUAL BAND NOTCH UWB MONOPOLE ANTENNA USING DUAL-ARM SPIRAL RESONATOR

This paper presents a multi-fractal antenna operating in ultra wide band range for WLAN and WiMAX applications. The novel idea of multi-fractal geometry is introduced into the conventional triangular patch antenna with microstrip feed. The addition of Koch and Sierpinski fractal techniques gives rise to better impedance bandwidth and return loss characteristics. The proposed antenna exhibits resonant frequency at 5.48 GHz with a return loss of -31.9dB to satisfy the band specifications for wireless LAN applications IEEE802.11a (5.15-5.35 GHz, 5.725-5.875 GHz) and WiMAX application at 5GHz (5.25-5.85 GHz). It is found that the antenna exhibits omni-directional radiation pattern in H plane with a maximum gain of 3.5dB. The antenna exhibits a stable radiation pattern throughout the operating frequency range of 4.68-6.43 GHz. The antenna covers the upper and lower bands of WLAN operating frequencies. The simulation was performed in High Frequency Structure Simulator. © 2013 IEEE.

Journal	Data powered by TypesetIEEE Antennas and Wireless Propagation Letters
Publisher	Data powered by TypesetInstitute of Electrical and Electronics Engineers (IEEE)
ISSN	1536-1225
Open Access	0