Results 91 to 100 of about 6,614,970 (338)

Enhanced Gain Through a Novel Approach to Designing a Composite SWB Antenna‐FSS

IET Microwaves, Antennas & Propagation
In this paper, we propose a novel dual‐layered frequency selective surface (FSS) with a unit cell dimension (length × width × thickness) of 30λ×30λ×1.8λ, operating over a frequency range of 0.5–14.1 GHz (187%) (λ represents the wavelength at 8.3 GHz ...
Hamed Joudaki, Amir Saman Nooramin
doaj   +1 more source

Optimization of Frequency Selective Surfaces

, 2005
Frequency selective surfaces are important in many electromagnetic applications since they transmit electromagnetic energy for some frequencies and reflect for others.
Ericsson, David, Rylander, Thomas
core  

Mitochondrial translation and coordinated cytosolic translation in metabolic homeostasis and disease

FEBS Letters, EarlyView.
Mitochondrial function depends on coordinated protein production from the nuclear and mitochondrial genomes. This review highlights how cytosolic and mitochondrial translation, mRNA localization, protein import, and respiratory complex assembly are integrated to maintain mitochondrial proteostasis and function.
Boseon Kim, Thi Thanh Mai Tran, Nakyung Kang, Min‐Woo Lee, Mihye Lee   +4 more
wiley   +1 more source

A Wideband Circularly Polarised High‐Gain Antenna Using Array Technology and Truncated Dielectric Plates

IET Microwaves, Antennas & Propagation
A gain enhancement method is presented for a circularly polarised (CP) wideband Fabry–Perot resonator antenna (FPRA). The proposed antenna structure consists of a multilayer configuration of closely spaced truncated dielectric plates (TDPs) and a ...
Zhixin Lei, Zhiming Liu, Bingtao Tan, Huilin Zhou, Yuhao Wang, Hao Xu   +5 more
doaj   +1 more source

Broadband Circular Polarizer Based on Multilayer Gradual Frequency Selective Surfaces

International Journal of Antennas and Propagation, 2016
This paper presents a broadband circular polarizer based on multilayer gradual frequency selective surfaces. The unit cell includes two identical circles and a bar, whose dimensions decrease layer by layer with a reduction factor. This design can provide
Wei Zhang, Jian-ying Li, Ling Wang
doaj   +1 more source

Secure Electromagnetic Buildings Using Slow Phase-Switching Frequency-Selective Surfaces

IEEE Transactions on Antennas and Propagation, 2016
The concept of a secure electromagnetic building (SEB) which can successfully prohibit wireless communications is presented. Wireless security is achieved using a slow phaseswitching technique and can be realized by time-varying the transmission ...
Jiayin Roberts, K. L. Ford, J. Rigelsford   +2 more
semanticscholar   +1 more source

Hijacking emergency granulopoiesis: Neutrophil ontogeny and reprogramming in cancer

Molecular Oncology, EarlyView.
Neutrophils are highly plastic innate immune cells; their functions in cancer extend beyond the tumour microenvironment. This Review summarises current understanding of neutrophil maturation and heterogeneity and highlights tumour‐induced granulopoiesis as a systemic programme that expands immature, immunosuppressive neutrophils via tumour‐derived ...
Gabriela Marinescu, Yi Feng
wiley   +1 more source

An ultra‐thin switched state active frequency selective surface absorber with wide bandwidth using semi‐analytical method

IET Microwaves, Antennas & Propagation
Using low‐voltage forward biased PIN diodes, an ultrathin switched states active frequency selective surface based microwave absorber is designed. Using a semi‐analytical method, the NXP#BAP70‐03 PIN diode‐based single polarised unit‐cell of the active ...
Z. A. Pandit Jibran, Kumud R. Jha, Satish K. Sharma, Anuj Shukla   +3 more
doaj   +1 more source

Optically transparent frequency selective surfaces on flexible thin plastic substrates

AIP Advances, 2015
A novel 2D simple low cost frequency selective surface was screen printed on thin (0.21 mm), flexible transparent plastic substrate (relative permittivity 3.2). It was designed, fabricated and tested in the frequency range 10-20 GHz.
Aliya A. Dewani, Steven G. O’Keefe, David V. Thiel, Amir Galehdar   +3 more
doaj   +1 more source

Significant Factors in the Inkjet Manufacture of Frequency-Selective Surfaces

IEEE Transactions on Components, Packaging, and Manufacturing Technology, 2016
Additive fabrication of electromagnetic structures by inkjet printing technology is both cost effective and compatible with a wide range of environmentally friendly substrates, enabling the fabrication of frequency-selective surface (FSS) arrays with ...
B. Turki, E. A. Parker, Sebastian Wünscher, U. Schubert, R. Saunders, V. Sanchez-Romaguera, M. A. Ziai, S. Yeates, J. Batchelor   +8 more
semanticscholar   +1 more source