Results 241 to 250 of about 3,437 (296)

Design and experimental validation of multi-section directional coupler with arbitrary coupling and high directivity for sub-6 GHz UWB applications. [PDF]

PLoS One
Patel SK, Barik RK, Dewangan NK, Koziel S.   +3 more
europepmc   +1 more source

A compact tri-band omnidirectional antenna design for CubeSat applications. [PDF]

Sci Rep
Aziz RS, Koziel S, Pietrenko-Dabrowska A.   +2 more
europepmc   +1 more source

Circular MIMO antenna with ML-based bandwidth and isolation prediction for 6G communications. [PDF]

Sci Rep
Alam MM, Ouameur MA, Haque ME, Haque MA, Tiang JJ, Singh NSS, Alsulami R, Alzahrani S.   +7 more
europepmc   +1 more source

A Dual-Band Bandpass Filter with Wide Upper Stopband Using Stepped-Impedance Resonators and an Integrated Low-Pass Filter. [PDF]

Micromachines (Basel)
Liu L, Lin Y, Chen Q, Zhang L, Weng M.
europepmc   +1 more source

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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, Lucian 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

REVIEW ON DEFECTED GROUND STRUCTURE ANTENNA

2023
In this chapter the detiled discussion about various studies on microstrip patch antenna and defected ground structure antennas starting with EBG structure studies and later about defected ground structure antennas. Results based on different designs has been discussed througly in all papers publised, including history and other various designes ...
Sunil G Jaganath, Rangayya Abkari, Dr. Vidyadhar S Melkeri   +2 more
openaire   +1 more source