Results 21 to 30 of about 644,516 (287)

Method of phase compensation and pattern transformation for array antennas with arbitrarily oriented circularly polarised elements

open access: yesIET Microwaves, Antennas & Propagation, 2023
The inconsistent polarised directions and the radiation pattern transformation of the elements need to be considered in the analysis and simulation of large circularly polarised conformal arrays. Without relying on full‐wave simulations of the full array,
Zhongtian Jing, Yubing Han
doaj   +1 more source

Time Modulated Linear Arrays [PDF]

open access: yes, 2013
With increasing demand for modern technology in the communication systems, antenna arrays have attracted much interest in the areas of radio broadcasting, space communication, weather forecasting, radar and imaging.
Tong, Yizhen
core   +5 more sources

Review on Ultra-Wideband Phased Array Antennas

open access: yesIEEE Access, 2021
Ultra-wideband (UWB) phased array antennas are essential for radar, communication, and Electronic Warfare (EW) applications. Systems can operate over wide-band coverage. The high gain systems require wide-band, wide-angle scanning, good radiation pattern,
Thokala Latha   +3 more
doaj   +1 more source

Millimeter-Wave Phased Arrays in Silicon [PDF]

open access: yes, 2007
Integration of mm-wave multiple-antenna systems on silicon-based processes enables complex, low-cost systems for high-frequency communication and sensing applications.
Natarajan, Arun Sridhar
core   +1 more source

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

open access: yes, 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.
Wandowski, T.   +3 more
core   +3 more sources

Optimal E-Field Vector Combination for a Highly Focused Antenna-Array [PDF]

open access: yes, 2014
A near-field highly focused circular phased-array antenna for 5.8-GHz radio frequency identification (RFID) applications is presented. The electric field (E-field) at the focus is enhanced by a constructive vector combination in a three-dimensional (3-D)
Perallos, Asier   +5 more
core   +1 more source

Phased Antenna Array Implementation with USRP [PDF]

open access: yes2017 IEEE Globecom Workshops (GC Wkshps), 2017
This paper presents the implementation of a phased antenna array with Universal Software Radio Peripheral (USRP). The antenna elements of the array are driven by individual USRP platforms. Hence, the synchronization and calibration of different platforms are required in phase and amplitude.
Sonkki Marko Tapani   +2 more
openaire   +3 more sources

In-Flight Performance Monitoring of TerraSAR-X Active Phased Array Antenna [PDF]

open access: yes, 2009
TerraSAR-X is a high resolution synthetic aperture radar (SAR) satellite launched in 2007. Its active phased array X-Band antenna hosts 384 transmit/receive modules (TRMs) controlling the beam shape and steering in azimuth and elevation.
Markus Bachmann   +5 more
core   +1 more source

An Efficient Method for Performance Monitoring of Active Phased Array Antennas [PDF]

open access: yes, 2009
Modern synthetic aperture radars (SARs) are equipped with active phased array antennas to electronically generate various antenna beams. The TerraSAR-X satellite is a high resolution SAR system launched in June 2007.
Schwerdt, Marco   +2 more
core   +1 more source

Metamaterial enhanced phased-array antenna

open access: yes, 2022
S.1119-1122In this work, different approaches for enhancing radiation properties of phased-array antennas based on metamaterials (MTM) are presented. In case of antenna front-end technology, efforts have been done in designing metaradomes for mitigation ...
Martel, C.   +12 more
core   +1 more source

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