Results 111 to 120 of about 9,181 (234)
Journal of Materials Research and TechnologyOne of the major obstacles to the realization of a sustainable planet is the handling of liquid waste, which is where Chitosan production waste (CPW) have been becoming a significant environmental issue.
Ibrahim M. Maafa +4 more
doaj +1 more source
Progress In Electromagnetics Research C, 2022 Mahmoud Abdelrahman Abdalla, Zhirun Hu
openaire +1 more source
Design and Implementation of CPW fed Wide-band Slot Antenna [PDF]
, 2004 Future antenna will be used to a growing extent for multipurpose applications and thus require operation over wide bandwidths. Especially, planar antennas have been studied to achieve wide bandwidth characteristic for many years.
김기수
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CPW-Fed Microstrip Patch Antenna for Millimeter Wave Applications
, 2022 The antenna elements have been consuming more power and inoperative area with high operational frequency. Therefore, an advanced antenna element design is necessary to cross over the above faults.
p, Siddaiah +2 more
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Materials Research ExpressAgricultural waste management poses significant environmental challenges, necessitating innovative strategies for repurposing biomass. Opuntia ficus-indica (OFI) cladode wastes, comprising 57% of the plant’s biomass, offer a sustainable route for green ...
Motlatsi J Mohlamonyane +2 more
doaj +1 more source
A Tapered CPW-Fed UWB Disc Antenna and the Embedded Meander Slot Band-Notch Design
, 2012 [[abstract]]A planar UWB circular disk monopole antenna fed by a non-uniform coplanar waveguide for a better impedance matching is presented in this paper. The non-uniform CPW is implemented by tapering the central strip or beveling the bilateral grounds
Ho, Min-Hua; Chen, Guan-Lin
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CPW-Fed Circularly Polarized Slot Antenna
, 2017 This article demonstrates the coplanar waveguide (CPW) feed L- slot microstrip antenna for multi frequency band operation is presented. The proposed antenna is excited by a single CPW feed connected to a Microstrip antenna.
Shafiyoddin Badroddin Sayyad +1 more
core +1 more source
Microstrip-CPW transitions for antenna arrays applications
, 1999 International audienceCoplanar waveguides nowadays are successfully used to feed printed antennas. This technique is very interesting for antenna arrays.
Muller, Franck +3 more
core +1 more source
, 2007 摘要 本論文是研究關於直交分合波器(Branch-line coupler)的原理與特性。在論文中利用立體耦合架構(3-D coupling structure)來設計雙層結構之直交分合波器。在實作上，由於四分之ㄧ波長的要求，分枝線分合波器的頻寬多限制於10%-20%之間。不過，本論文所設計出之分合波器不同於傳統架構之分合波器，該結構利用額外增加的耦合量改變中心頻率附近的阻抗匹配，而有著較大的寬頻(Wideband)響應，且只需ㄧ級就能達到寬頻的效果。 首先在單層板中利用共平面波導 ...
林楷閔, Lin, Kai-Min
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A Study on Thin-Film ML/CPW Transmission Line in Composite Structure for RFIC [PDF]
, 2015 최근 정보통신기술이 첨단화로 인하여 무선통신시스템의 개발이 활발히 이뤄지고 있는 실정이다. 급격한 발전에 맞춰 무선통신 단말기의 저단가 및 소형화가 필요하며, 이러한 요구를 충족 시켜주기 위해서는 RF 소자들의 집적화가 필요한 추세이다. 본 연구에서는 실리콘 반도체 기판상에 박막형 ML/CPW 복합구조를 가지는 전송선로를 개발하였다.
손기준
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