Printed circular disc compact planar antenna for UWB applications

2011 ◽  
Author(s):  
Rezaul Azim ◽  
Mohammad Tariqul Islam ◽  
Norbahiah Misran
Keyword(s):  
Circular Disc ◽  
Planar Antenna ◽  
Uwb Applications ◽  
Compact Planar

scholarly journals Compact planar antenna for UWB applications

2010 ◽  
Author(s):  
Rezaul Azim ◽  
Ahmed Toaha Mobashsher ◽  
Mohammad Tariqul Islam ◽  
Norbahiah Misran
Keyword(s):  
Planar Antenna ◽  
Uwb Applications ◽  
Compact Planar

scholarly journals A Circular Disc Microstrip Antenna with Dual Notch Band for GSM/Bluetooth and Extended UWB Applications

2018 ◽  
Vol 7 (2.16) ◽  
pp. 11
Author(s):  
Sanjeev Kumar ◽  
Ravi Kumar ◽  
Rajesh Kumar Vishwakarma
Keyword(s):  
Radiation Pattern ◽  
Microstrip Antenna ◽  
Ground Plane ◽  
Circular Disc ◽  
Ultra Wideband ◽  
Resonant Circuit ◽  
Frequency Range ◽  
Notch Band ◽  
Uwb Applications ◽  
Ku Band

A microstrip antenna with a circular disc design and modified ground is proposed in this paper. Circular shapes of different size have been slotted out from the radiating patch for achieving extended ultra wideband (UWB) with GSM/Bluetooth bands with maximum bandwidth of 17.7 GHz (0.88-18.6 GHz). Further, characteristic of dual notch band is achieved, when a combination of T and L-shaped slots are etched into the circular disc and ground plane respectively. Change in length of slots is controlling the notch band characteristics. The proposed antenna has rejection bandwidth of 1.3-2.2 GHz (LTE band), 3.2-3.9 GHz (WiMAX band) and 5.2-6.1 GHz (WLAN band) respectively. It covers the frequency range of 0.88-18.5 GHz with the VSWR of less than 2. Also, an equivalent parallel resonant circuit has been demonstrated for band notched frequencies of the designed antenna. The gain achieved by the proposed antenna is 6.27 dBi. This antenna has been designed, investigated and fabricated for GSM, Bluetooth, UWB, X and Ku band applications. The stable gain including H & E-plane radiation pattern with good directivity and omnidirectional behavior is achieved by the proposed antenna. Measured bandwidths are 0.5 GHz, 0.8 GHz, 1.1 GHz and 11.7 GHz respectively. 

Design of a Compact Planar Antenna for UWB Systems

2013 ◽  
Vol 55 (9) ◽  
pp. 1989-1992
Author(s):  
Lu Guo ◽  
Xiaodong Chen
Keyword(s):  
Planar Antenna ◽  
Compact Planar

scholarly journals Efficiency of a Compact Elliptical Planar Ultra-Wideband Antenna Based on Conductive Polymers

2012 ◽  
Vol 2012 ◽  
pp. 1-11 ◽  
Author(s):  
Thomas Kaufmann ◽  
Akhilesh Verma ◽  
Van-Tan Truong ◽  
Bo Weng ◽  
Roderick Shepherd ◽  
...  
Keyword(s):  
High Efficiency ◽  
Conductive Polymers ◽  
Thick Layer ◽  
Ultra Wideband ◽  
Planar Antenna ◽  
Frequency Range ◽  
Test Bed ◽  
Order Of Magnitude ◽  
Uwb Applications ◽  
Pedot Layer

A planar antenna for ultra-wideband (UWB) applications covering the 3.1–10.6 GHz range has been designed as a test bed for efficiency measurements of antennas manufactured using polymer conductors. Two types of conductive polymers, PEDOT and PPy (polypyrrole), with very different thicknesses and conductivities have been selected as conductors for the radiating elements. A comparison between measured radiation patterns of the conductive polymers and a copper reference antenna allows to estimate the conductor losses of the two types of conductive polymers. For a 158 μm thick PPy polymer, an efficiency of almost 80% can be observed over the whole UWB spectrum. For a 7 μm thick PEDOT layer, an average efficiency of 26.6% demonstrates, considering the room for improvement, the potential of this type of versatile materials as flexible printable alternative to conductive metallic paints. The paper demonstrates that, even though the PEDOT conductivity is an order of magnitude larger than that of PPy, the thicker PPy layer leads to much higher efficiency over the whole UWB frequency range. This result highlights that high efficiency can be achieved not only through high conductivity, but also through a sufficiently thick layer of conductive polymers.

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