Results 41 to 50 of about 1,902,856 (342)

100 GHz Silicon-based micro-machined patch antenna and arrays

The Journal of Engineering, 2019
This study designs a micro-machined BCB-cavity patch antenna and two types of four-element micro-machined antenna arrays at 100 GHz. The patches are fabricated on Benzocyclobutene (BCB) polymer material.
Jingtian Liu, Shuming Chen, Ke Xiao, Xiaowen Chen   +3 more
doaj   +1 more source

Dual-Polarization and Dual-Band Conical-Beam Array Antenna Based on Dual-Mode Cross-Slotted Cylindrical Waveguide

IEEE Access, 2021
Two designs of conical-beam array antennas are presented for different fifth-generation applications. They are based on slotted cylindrical waveguides and a travelling-wave topology, where the waveguide is used to progressively excite a cross-slot array.
Pablo Sanchez-Olivares, Jose Luis Masa-Campos, Eduardo Garcia-Marin   +2 more
doaj   +1 more source

Conformal Antenna Array for Millimeter-Wave Communications: Performance Evaluation

, 2015
In this paper, we study the influence of the radius of a cylindrical supporting structure on radiation properties of a conformal millimeter-wave antenna array.
Bisognin, A., Devillers, F., Ferrero, F., Kolmonen, V-M., Kyro, M., Luxey, C., Raisanen, A. V., Semkin, V.   +7 more
core   +1 more source

A Transmission-Line-Based Decoupling Method for MIMO Antenna Arrays

IEEE Transactions on Antennas and Propagation, 2019
A transmission-line-based decoupling technique for dual-polarized multiple-input and multiple-output (MIMO) antenna arrays is presented and analyzed.
Yi-ming Zhang, Shuai Zhang, Jia‐lin Li, G. Pedersen   +3 more
semanticscholar   +1 more source

Comparison of Microwave Hyperthermia Applicator Designs with Fora Dipole and Connected Array

Sensors, 2023
In microwave hyperthermia tumor therapy, electromagnetic waves focus energy on the tumor to elevate the temperature above its normal levels with minimal injury to the surrounding healthy tissue.
Gulsah Yildiz, Iman Farhat, Lourdes Farrugia, Julian Bonello, Kristian Zarb-Adami, Charles V. Sammut, Tuba Yilmaz, Ibrahim Akduman   +7 more
doaj   +1 more source

Effect of Polarization on the Performance of Adaptive Antenna Arrays

Journal of Communications, 2020
The polarized electromagnetic waves impinging on adaptive antenna arrays have significant impact on their performance. In this paper we investigate the effect of polarized desired and undesired signals on the performance of electronically steered beam ...
A. Al-Ka'bi
semanticscholar   +1 more source

Thinning of Sierpinski fractal array antennas using bounded binary fractal-tapering techniques for space and advanced wireless applications

ICT Express, 2019
Fractal arrays are repetitive-geometry-based smart arrays having impressive array factor properties. However, the performance of these arrays degrades owing to their large number of antenna elements at higher expansion levels. This research work presents
V.A. Sankar Ponnapalli, P.V.Y. Jayasree
doaj   +1 more source

Capacity Optimization of MIMO Systems Involving Conformal Antenna Arrays using a Search Group Algorithm

Algerian Journal of Signals and Systems, 2020
MIMO systems constitute a backbone of the fourth and fifth generations of wireless communication systems. The purpose of this paper is to introduce the involvement of conformal antenna arrays into MIMO systems.
Abdelmadjid RECIOUI
doaj   +1 more source

Metamaterial‐based linear phased array antenna with improved wide‐angle scanning bandwidth by parasitic metal strips

IET Microwaves, Antennas & Propagation, 2021
Two metamaterial‐based linear phased array antennas with improved wide‐angle scanning bandwidth are designed in this study. Metamaterial antenna element consists of a metamaterial patch, periodic metal strips, distributed metal strips and slot coupling ...
Qi Zhang, Wen Jiang, Peng Liu, Kun Wei, Wei Hu, Shuxi Gong   +5 more
doaj   +1 more source

Cytoplasmic p21 promotes stemness of colon cancer cells via activation of the NFκB pathway

Molecular Oncology, EarlyView.
Cytoplasmic p21 promotes colorectal cancer stem cell (CSC) features by destabilizing the NFκB–IκB complex, activating NFκB signaling, and upregulating BCL‐xL and COX2. In contrast to nuclear p21, cytoplasmic p21 enhances spheroid formation and stemness transcription factor CD133.
Arnatchai Maiuthed, Kerstin Huebner, Katharina Erlenbach‐Wuensch, Chuanpit Hampel, Daniela Thalheim, Adriana Vial‐Roehe, Bodee Nutho, Susanne Merkel, Arndt Hartmann, Pithi Chanvorachote, Regine Schneider‐Stock   +10 more
wiley   +1 more source