A small novel ultra wideband antenna with slotted ground plane

Author(s):  
Yusnita Rahayu ◽  
Tharek Abd. Rahman ◽  
Razali Ngah ◽  
P.S. Hall
Author(s):  
Aziz El fatimi ◽  
Seddik Bri ◽  
Adil Saadi

<div class="WordSection1"><p>This paper presents a candidate ultra wideband antenna for Ku-band wireless communi- cations applications, analyzed and optimized by the finite element method (FEM). This three-dimensional modeling was realized and compared with published antennas for val- idate the performances of the proposed antenna. Its design is based on the insertion o fseveral symmetrical slots of different sizes on the ground plane of a mono-layer patch antenna to overcome the main limitation of the narrow bandwidth of patch antennas. The proposed antenna, made on an FR-4 epoxy mono-layer substrate with a defected ground plane (dielectric constant <em>ε</em><em>r </em>= 4,4, loss tangent <em>tan δ </em>= 0,02 and thickness <em>hs </em>= 1.6 mm). The simulated numerical results obtained are very satisfying; Bandwidth = 10.48 GHz from <em>f</em>1 = 9.34 GHz to <em>f</em>2 = 19.82 GHz, <em>S</em>11 = -34.17 dB, Voltage Stationary Wave Ratio VSWR = 1.04 , Gain = 6.27 dB.</p></div>


2011 ◽  
Vol 383-390 ◽  
pp. 4457-4460 ◽  
Author(s):  
Wei Hua Zong ◽  
Xiao Yun Qu ◽  
Yong Xin Guo ◽  
Ming Xin Shao

A printed open-ended slot antenna is designed for mobile phone application. The slot has a hybrid structure of a rectangle and a circle cut out of a 60mm×115mm ground plane, and fed by a microstrip line with a circular patch connected to a bent strip on the upper part of the patch. The proposed antenna provides a wide -6dB bandwidth covering 1.73-11GHz. It can be used in DCS1800, PCS1900, UMTS2000, TD-SCDMA, Bluetooth, LTE2.5GHz, WiMax, and UWB


2015 ◽  
Vol 9 (10) ◽  
pp. 1028-1034 ◽  
Author(s):  
Mubarak Sani Ellis ◽  
Zhiqin Zhao ◽  
Jiangniu Wu ◽  
Zaiping Nie ◽  
Qing Huo Liu

Author(s):  
Chaiyong Soemphol ◽  
Niwat Angkawisittpan

<span>A coplanar waveguide</span><em></em><span>fed ultra-wideband antenna with extended transmission band to WLAN frequency is investigated. The proposed antenna consists of a modified </span><span>semi-</span><span>circular patch and staircase of ground plane. The prototype is fabricated on a low cost FR4 substrate with dielectric constant of 4.4</span><span> with thicknes of 0.8 mm. The overall dimensions of proposed UWB antenna are </span><span>34 mm x 40 mm. The simulation and experimental results have been shown that the proposed antenna archives low VSWR over transmission bandwidth from 2.10 - 12.7 GHz to cover both WLAN and UWB bands.  The average gain is 3.87 dBi. It depicts nearly omni-directional radiation pattern like dipole antenna. Moreover, the fabricated prototype antenna shows a good agreement between the simulated and measured results</span>


2012 ◽  
Vol 35 ◽  
pp. 165-179 ◽  
Author(s):  
Majid Rafiee ◽  
Mohd Fadzil Ain ◽  
Md. Shahar Aftanasar

2013 ◽  
Vol 846-847 ◽  
pp. 521-525
Author(s):  
Zheng Lin Zhou ◽  
Ming Li

A compact coplanar waveguide fed UWB (ultra-wideband) antenna with triple band-notched characteristics is presented. The rectangle radiation patch is used in the new design, and the bandwidth of the UWB antenna is extended by using circle corner for the rectangle cut from the ground. A parasitic element is added, whereas an inverted U-shaped slot is cut on the top of the CPW ground plane and a U-shaped slot is cut on the rectangle radiation patch. As a result, a triple band-notched characteristic is obtained, by which the potential interference between UWB and WLAN (Wireless Local Area Networks), C-band and X-band systems can be effectively reduced.


2015 ◽  
Vol 8 (7) ◽  
pp. 1069-1075 ◽  
Author(s):  
Meenakshi Devi ◽  
Anil Kumar Gautam ◽  
Binod Kumar Kanaujia

A novel design of a compact ultra wideband antenna with triple band-notched characteristics is proposed. Much wider impedance bandwidth (from 2.63 to 13.02 GHz) is obtained by using a star like-shaped radiator and a defected rectangular ground plane and band-notched functions are obtained by attaching L- and I-shaped structure on the ground and a capacitive-loaded loop (CLL) resonator on the patch. The triple band-notch rejection at WiMAX, WLAN, and ITU bands are obtained by attaching I-shape strip, CLL resonator, and flip L-shape, respectively. The parametric study is carried out to study the influence of varying dimensions on the antenna performance. To validate simulation results of the design a prototype is fabricated on the commercially available FR4 material. The measured results reveal that the presented triple band-notch antenna offers a very wide bandwidth of 10.41 GHz (2.63–13.04 GHz) with triple band-notched characteristics at WiMAX (2.94–3.7 GHz), WLAN (5.1–5.9 GHz), and ITU (7.4–8.7 GHz).


Sign in / Sign up

Export Citation Format

Share Document