Results 61 to 70 of about 156,809 (211)

A Compact Millimeter-Wave, Dual-Band, Dual-Polarized, Duplex, and Scalable Phased Array Enabling B5G/6G Multi-Standard Systems

Engineering
A new, compact, and dual-band dual-polarized duplex (D3) phased array architecture is proposed in this study. In contrast to studies reported previously, this design integrates four independent beamforming systems within a single printed circuit board ...
Kai Chen, Jun Xu, Renrong Zhao, Lei Xiang, Debin Hou, Zhiqiang Yu, Jianyi Zhou, Jixin Chen, Zhang-Cheng Hao, Wei Hong   +9 more
doaj   +1 more source

Spiral slotted phased antenna array [PDF]

, 1982
A flush mounting, cavity-backed, dual orthogonal slot antenna for aircraft and space vehicles is described. Improved radiation pattern characteristics are obtained by making the spiral slot pattern elliptical in the aperture plane. A cavity and a flanged
Ellis, H., Jr.
core   +1 more source

Beamforming Techniques for Large-N Aperture Arrays

, 2010
Beamforming is central to the processing function of all phased arrays and becomes particularly challenging with a large number of antenna element (e.g. >100,000).
Adami, K Zarb, de Vaate, J. G. Bij, Faulkner, A J, Kant, G. W., Pickard, P.   +4 more
core   +1 more source

A phased array-based method for damage detection and localization in thin plates [PDF]

, 2009
A method for damage localization based on the phased array idea has been developed. Four arrays oftransducers are used to perform a beam-forming procedure.
Fomme, P., Irina Trendafilova, Pawel Malinowski, Peil, U., Pena, J., Purekar, A.S., Tomasz Wandowski, Wandowski, T., Wieslaw Ostachowicz, Zak, A.   +9 more
core   +1 more source

Phased Array Feed Calibration, Beamforming and Imaging [PDF]

, 2009
Phased array feeds (PAFs) for reflector antennas offer the potential for increased reflector field of view and faster survey speeds. To address some of the development challenges that remain for scientifically useful PAFs, including calibration and ...
Alan Stemmons, Borthakur, Brian D. Jeffs, Chynoweth, Dame, David Jones, Ellingson, Ellingson, Fisher, Fisher, Gilmon, Hay, J. Richard Fisher, Jacob Waldron, Jeffs, Jeffs, Jeffs, Jonathan Landon, Karl F. Warnick, Landon, Landon, Leshem, Leshem, Liszt, Lockman, Michael Elmer, Murphy, Oosterloo, Poulsen, Putman, Roddy, Roger D. Norrod, Taylor, Thilker, Van Trees, Verheijen, Waldron, Warnick, Warnick, Willis, Woestenburg, Zhang, Zhang   +42 more
core   +1 more source

Frequency selective wave beaming in nonreciprocal acoustic phased arrays

Scientific Reports, 2020
Acoustic phased arrays are capable of steering and focusing a beam of sound via selective coordination of the spatial distribution of phase angles between multiple sound emitters.
Revant Adlakha, Mohammadreza Moghaddaszadeh, Mohammad A. Attarzadeh, Amjad Aref, Mostafa Nouh   +4 more
doaj   +1 more source

A 24-GHz SiGe Phased-Array Receiver—LO Phase-Shifting Approach [PDF]

, 2005
A local-oscillator phase-shifting approach is introduced to implement a fully integrated 24-GHz phased-array receiver using an SiGe technology. Sixteen phases of the local oscillator are generated in one oscillator core, resulting in a raw beam-forming ...
Guan, Xiang, Hajimiri, Ali, Hashemi, Hossein, Komijani, Abbas   +3 more
core   +1 more source

User Impact on Phased and Switch Diversity Arrays in 5G Mobile Terminals

IEEE Access, 2018
In this paper, a mobile terminal phased array at 28 GHz with different scan angles is compared with a switch diversity antenna array at 28 GHz in the case of antenna beams pointing at the user's body.
Igor Syrytsin, Shuai Zhang, Gert Frolund Pedersen   +2 more
doaj   +1 more source

A Low-Profile 36-Element K-Band Active Phased Array for Ultra-Small Aperture Application

IEEE Access, 2020
This paper presents a 36-element low-profile half-duplex K-band T/R phased array as a solution for the platform with limited aperture and space for the phased array.
Xuan Luo, Jun Ouyang, Zhihui Chen, Lei Han, Wei Yan   +4 more
doaj   +1 more source

Hierarchical sinuous-antenna phased array for millimeter wavelengths

, 2018
We present the design, fabrication and measured performance of a hierarchical sinuous-antenna phased array coupled to superconducting transition-edge-sensor (TES) bolometers for millimeter wavelengths.
Cukierman, Ari, Lee, Adrian T., Raum, Christopher, Suzuki, Aritoki, Westbrook, Benjamin   +4 more
core   +1 more source