Results 241 to 250 of about 14,554 (296)

Isolation enhancement of a capacitively-fed MIMO antenna using a quasi-fractal parasitic element and defected ground structure. [PDF]

Heliyon
Rizvi SNR, Sufian MA, Hussain N, Chun Y, Park SG, Kim S, Kim N.   +6 more
europepmc   +1 more source

Miniaturized broadband high out-of-band rejection bandpass filter based on spoof surface plasmon polaritons with defected ground structure. [PDF]

Sci Rep
Yang L, Liu H, Cai B, Wu L, Cheng Y.
europepmc   +1 more source

Design and performance analysis of an L-shaped radiator and defected ground antenna for enhancing wireless connectivity in brain implants. [PDF]

Heliyon
Gupta A, Kumar V, Alsharif MH, Uthansakul P, Uthansakul M, Dhasarathan V, Sharma M.   +6 more
europepmc   +1 more source

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Modeling of radiation losses in Defected Ground Structures

2016 IEEE International Conference on Engineering and Technology (ICETECH), 2016
Defected Ground Structures are useful in many microwave applications. It suffers with radiation and scattering losses through defect in the ground plane. This paper addresses the origin and model of such losses with various 3D EM simulations. This model will be useful in engineering the EMI and losses due to DGS and other defect based resonators.
Dhanaraj Kannadassan
exaly   +2 more sources

A novel defected ground structure for planar circuits

IEEE Microwave and Wireless Components Letters, 2006
A new compact defected ground structure (DGS) is proposed for the microstrip line. The structure is compact in microstrip line direction. Here, this DGS is used to design a compact low pass filter (LPF) that is at least 26.3% more compact lengthwise than other reported compact structures and has sharper transition knee.
M.K. Mandal, S. Sanyal
exaly   +2 more sources

Compact Wireless Devices with Defected-Ground Structures

2006 International Conference on Wireless and Mobile Communications (ICWMC'06), 2006
In this paper are presented some investigations on micro- strip defected ground structures (DGS). It is shown that the presence of a slot in the ground plane can substantially enhance the electric coupling, or the electric part of a mixed coupling between resonators and its external feedings.
Nicolae Militaru, Marian Gabriel Banciu, C. A. Dutu, L. Trupina, George Lojewski   +4 more
openaire   +1 more source

Spiral defected ground structures in grounded coplanar waveguide

2011 IEEE Radio and Wireless Symposium, 2011
This paper presents results of a spiral defected ground structure (SDGS) study in grounded coplanar waveguide (GCPW) technology. A SDGS is implemented on the top and bottom ground planes of a GCPW transmission line resulting in stronger attenuation poles.
Young Ki Hong, Rashaunda M. Henderson
openaire   +1 more source

Structural defects in mechanically ground graphite

Carbon, 1999
Abstract Highly ordered synthetic graphite was mechanically ground in a planetary ball mill. The interlayer spacing d002 was found to increase in the grinding process with the reduction of the crystalline size La, Lc. The specific surface area increased to over 600 m2/g at the maximum.
Hiroaki Wakayama, Jiro Mizuno, Yoshiaki Fukushima, Kei Nagano, Toshiharu Fukunaga, Uichiro Mizutani   +5 more
openaire   +1 more source

Dumbbell-shaped defected ground structure

International Journal of RF and Microwave Computer-Aided Engineering, 2007
A simplified equivalent circuit model of a dumbbell-shaped defected ground structure (DGS) is developed. The equivalent circuit model is derived from the equivalent inductance and capacitance, which develop because of the perturbed return current path on the ground and the narrow gap, respectively.
Sushim Mukul Roy, Nemai C. Karmakar, Isaac Balbin   +2 more
openaire   +1 more source