Planar monopole antenna with wide impedance bandwidth for mobile handset application

2007 ◽  
Vol 49 (4) ◽  
pp. 779-781 ◽  
Author(s):  
Wonseob Kim ◽  
Seokjin Hong ◽  
Hoon Park ◽  
Jaehoon Choi
Keyword(s):  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Planar Monopole Antenna ◽  
Mobile Handset

Computer-Aided Design of Ultra Wideband Planar Monopole Antenna with Defect Ground for EMC Testing in Communication

2014 ◽  
Vol 513-517 ◽  
pp. 3273-3276
Author(s):  
J.Q. Ruan ◽  
K.B. Tan ◽  
H.M. Lu ◽  
Y.C. Song ◽  
F.F. Fan ◽  
...  
Keyword(s):  
Communication System ◽  
Computer Aided Design ◽  
Monopole Antenna ◽  
Ultra Wideband ◽  
Impedance Bandwidth ◽  
Computer Aided ◽  
Planar Monopole Antenna ◽  
Aided Design

In this work, a monopole antenna with defect ground is proposed for ultra wideband EMC measurement in communication system. The antenna is fed by micro-strip. It is demonstrated that the antenna provides an impedance bandwidth ranging from 2.5 GHz to 13.5 GHz (for VSWR < 2) and supports an adequate pattern.

A dual wideband Sierpinski carpet fractal-shaped planar monopole antenna with CPW feed

2011 ◽  
Vol 3 (1) ◽  
pp. 77-79 ◽  
Author(s):  
Rowdra Ghatak ◽  
Swapan K. Ghoshal ◽  
Durbadal Mondal ◽  
Anup K. Bhattacharjee
Keyword(s):  
Coplanar Waveguide ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Antenna Gain ◽  
Sierpinski Carpet ◽  
Lower Band ◽  
Planar Monopole Antenna ◽  
Sierpiński Carpet ◽  
Good Agreement

A dual wideband design of Sierpinski carpet fractal-shaped planar monopole antenna with a coplanar waveguide (CPW) feed is proposed in this letter. Wide impedance bandwidth of 22% at lower resonance from 4.88 to 6.08 GHz and 41.7% at higher one, which ranges from 9.5 to 14.5 GHz, is obtained. Measured realized antenna gain is around 5 dBi at the lower band centered around 5.5 GHz and are around 4.5 dBi at the higher band. A fabricated prototype is developed with good agreement between simulation and measurement.

A COMPACT MULTIBAND PLANAR MONOPOLE ANTENNA FOR SLIM MOBILE HANDSET APPLICATIONS

2014 ◽  
Vol 61 ◽  
pp. 31-42 ◽  
Author(s):  
Pradutt Kumar Bharti ◽  
Gaurav Kumar Pandey ◽  
Hari Shankar Singh ◽  
Manoj Kumar Meshram
Keyword(s):  
Monopole Antenna ◽  
Planar Monopole Antenna ◽  
Mobile Handset

scholarly journals Design of a Compact UWB MIMO Antenna without Decoupling Structure

2018 ◽  
Vol 2018 ◽  
pp. 1-7 ◽  
Author(s):  
Yanjie Wu ◽  
Kang Ding ◽  
Bing Zhang ◽  
Jianfeng Li ◽  
Duolong Wu ◽  
...  
Keyword(s):  
Impedance Matching ◽  
Multiple Input Multiple Output ◽  
Monopole Antenna ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Mimo Antenna ◽  
High Isolation ◽  
Multiple Input ◽  
Input Multiple Output ◽  
Mobile Handset

A compact high isolation ultrawideband (UWB) multiple-input-multiple-output (MIMO) antenna is designed. The proposed MIMO antenna consists of a rectangular monopole antenna and a slot antenna fed by two microstrip lines, respectively. To improve the impedance matching, a circular coupling structure is designed to feed the tapered slot antenna. The parasitic resonance introduced by the ground stub helps to extend the impedance bandwidth of monopole antenna at the upper UWB band. Commonly used complex decoupling or coupling structures are eliminated that endow the proposed antenna minimized foot print, which is preferred in mobile handset. Although without decoupling structure, high isolation is obtained between two antenna elements. Simulation and measurement verify the antenna’s desirable performance, showing a broad impedance bandwidth of 3.1–10.6 GHz with |S11| < −10 dB and |S21| < −20 dB over 3.4–10.6 GHz, and |S21| < −18 dB from 3.1–3.4 GHz.

Ultrawide Bandwidth (UWB) Planar Monopole Antenna Backed by Novel Pyramidal-Shaped Cavity Providing Directional Radiation Patterns

2011 ◽  
Vol 10 ◽  
pp. 1469-1472 ◽  
Author(s):  
Robert A. Moody ◽  
Satish K. Sharma
Keyword(s):  
Experimental Verification ◽  
Reasonable Agreement ◽  
Coplanar Waveguide ◽  
Impedance Matching ◽  
Monopole Antenna ◽  
Impedance Bandwidth ◽  
Radiation Patterns ◽  
Directional Radiation ◽  
Gain Variation ◽  
Planar Monopole Antenna

An ultrawideband (UWB) coplanar waveguide (CPW)-fed pentagon-shaped planar monopole antenna (PMA) backed by a novel pyramidal-shaped cavity is presented that provides directional radiation patterns. The pyramidal-shaped cavity reflector is placed at a fixed spacing from the UWB monopole antenna to provide impedance and radiation performance over 110% (3.1-10.6 GHz) frequency band. The PMA itself on a foam substrate provides stable gain variation within 3 dB over an impedance bandwidth (w.r.t.S11&lt;; -10 dB) of 120% (3-12 GHz). The proposed cavity-backed PMA prototype antenna was fabricated, and experimental verification was performed for impedance matching and radiation patterns. The measured results show reasonable agreement with the simulated ones.

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