Results 181 to 190 of about 4,898,698 (235)
Isolation enhancement of a capacitively-fed MIMO antenna using a quasi-fractal parasitic element and defected ground structure. [PDF]
HeliyonRizvi SNR +6 more
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Design of reconfigurable defected ground structure (DGS) for UWB application [PDF]
2012 IEEE Asia-Pacific Conference on Applied Electromagnetics (APACE), 2012 This paper presents the design of reconfigurable defected ground structure (DGS) resonator that can be integrated with ultrawide-band (UWB) microwave filter to produce bandpass and bandstop response simultaneously. The reconfigurable DGS is designed based upon coplanar waveguide (CPW) technology to exhibit bandstop characteristic at 3.5 GHz and 5.5 GHz
Z. Zakaria +3 more
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Microstrip bandstop filter using spurline and defected ground structures(DGS)
Proceedings of 2011 Cross Strait Quad-Regional Radio Science and Wireless Technology Conference, 2011Microstrip filters are widely used in microwave circuit, This paper briefly describes the design principle of microstrip bandstop filter (BSF). A compact wide band high rejection BSF is presented. This filter consists of two parts: defected ground structures filter (DGS) and spurline filter. Due to the inherently compact characteristics of the spurline
null Wang Wenping +3 more
exaly +2 more sources
Microstrip Antenna with Defected Ground Structure (DGS) for Multiband Operation
2016In this paper, a microstrip feeding rectangular MPA using DGS structure into ground plane is presented. In the absence of a slot, a conventional rectangular MPA is also considered for confirming the validity of designed antenna. This conventional antenna design was found to resonate on 7.0611 GHz frequency at −23.70 dB return loss. When introducing the
Rajesh Kumar Vishwakarma
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Coplanar waveguide (CPW) defected ground structure (DGS) for bandpass filter application
Microwave and Optical Technology Letters, 2004AbstractIn this paper, we design and implement a coplanar waveguide (CPW) bandpass filter utilizing defected ground structure (DGS) technology. The CPW DGS technology, which only needs one or a series connection of a few cells to exhibit the bandgap characteristics, can provide the attenuation poles in the upper and lower bands to improve the rolloff ...
Man‐Long Her +3 more
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Design and analysis of defected ground structure (DGS) in normal mode helical antenna
2014 IEEE Symposium on Wireless Technology and Applications (ISWTA), 2014This paper presented a study of a defected ground structure (DGS) which affects the performances of the normal mode helical antenna. Two (2) types of helical antennas have been designed; normal mode helical antenna (NMHA) or conventional antenna and the normal mode helical antenna with defected ground structure. The normal mode helical antennas connect
N. Ripin +3 more
exaly +2 more sources
Concentric Ring-Shaped Defected Ground Structures for Microstrip Applications
IEEE Antennas and Wireless Propagation Letters, 2006 A new defected ground structure (DGS) consisting of concentric circular rings in different configurations is experimentally studied to examine the stopband characteristics.
Manotosh Biswas, D Guha, Y M M Antar
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(ICEEE). 1st International Conference on Electrical and Electronics Engineering, 2004., 2005
A novel Defected Microstrip Structure is proposed, which behaves in a similar way than a conventional unit cell Defected Ground Structure (DGS) concerning band-stop response and selectivity. As a difference from the DGS, the DMS structure frequency response is almost the same when the microstrip length varies.
J.A. Tirado-Mendez, H. Jardon-Aguilar
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A novel Defected Microstrip Structure is proposed, which behaves in a similar way than a conventional unit cell Defected Ground Structure (DGS) concerning band-stop response and selectivity. As a difference from the DGS, the DMS structure frequency response is almost the same when the microstrip length varies.
J.A. Tirado-Mendez, H. Jardon-Aguilar
openaire +1 more source
Sierpinski gasket fractal antenna with defected ground structure (DGS)
2012 International Conference on ICT Convergence (ICTC), 2012This paper presents the design and fabrication of Sierpinski gasket fractal antenna with defected ground structure (DGS) with center frequency at 5.8 GHz. A slot was used as a DGS. The antenna was designed and simulated using Computer Simulation Technology (CST) software and fabricated on FR-4 board with a substrate thickness of 1.6 mm and dielectric ...
Kamariah Ismail, Siti Hasyimah Ishak
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Investigation of novel tapered hybrid defected ground structure (DGS)
International Journal of RF and Microwave Computer-Aided Engineering, 2005Novel defected ground structures (DGSs) have been investigated to achieve improved low-pass filter (LPF) properties. A chronological development in designs ranging from conventional square-patterned photonic-bandgap structure (PBGS) and conventional dumbbell-shaped DGS to proposed novel nonuniform DGS has been investigated theoretically and ...
Mohammad Nurunnabi Mollah +2 more
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