Results 31 to 40 of about 56,406 (306)
A New Approach for Ocean Surface Wind Speed Retrieval Using Sentinel-1 Dual-Polarized Imagery
Remote Sensing, 2023 A synthetic aperture radar (SAR) has the capability to observe ocean surface winds with a high spatial resolution, even under extreme conditions. The purpose of this work was to develop a new method for wind speed retrieval with the combination of SAR ...
Yuan Gao, Yunhua Wang, Weili Wang
doaj +1 more source
Dual-polarized 28-GHz air-filled SIW phased antenna array for next-generation cellular systems [PDF]
, 2019 A high-performance dual-polarized eight-element air-filled substrate-integrated-waveguide (AFSIW) cavity-backed patch antenna array is presented. The antenna operates in the [26.5-29.5] GHz band and provides a stable high data-rate wireless communication
Kapusuz, Kamil Yavuz +2 more
core +1 more source
Compact Dual-Polarized/Duplex Filtering Antenna With High Isolation
IEEE Open Journal of Antennas and Propagation, 2023 This paper introduces novel dual-polarized/duplex filtering antennas with a novel filtering feeding network. The feeding network consists of an all-resonator structure, which shares a common dual-mode resonator.
Jianfeng Qian +5 more
doaj +1 more source
IEEE Photonics Journal, 2019 We present the first demonstration of an actively Q-switched orthogonally polarized dual-wavelength Nd:YLF/YVO4 Raman laser to our knowledge. The gain competition of the orthogonally polarized dual-wavelength fundamental laser at 1047 and 1053 nm ...
Zhiyu Zuo +7 more
doaj +1 more source
Study and Design of a Diferentially Fed Tapered Slot Antenna Array [PDF]
, 2010 The results of a parametric study and design of an ultrawideband dual-polarized array of differentially-fed tapered slot antenna elements are presented. We examine arrays of bunny-ear antennas and discuss the capabilities and limitations of differential ...
García, Enrique +5 more
core +2 more sources
Flexible dual-diversity wearable wireless node integrated on a dual-polarised textile patch antenna [PDF]
, 2014 A new textile wearable wireless node, for operation in the 2.45 GHz industrial, scientific and medical (ISM) band, is proposed. It consists of a dual-polarised textile patch antenna with integrated microcontroller, sensor, memory and transceiver with ...
Knockaert, Jos +4 more
core +2 more sources
Dual-Polarized Ricean MIMO Channels: Modeling and Performance Assessment
, 2012 In wireless communication systems, dual-polarized (DP) instead of single-polarized (SP) multiple-input multiple-output (MIMO) transmission is used to improve the spectral efficiency under certain conditions on the channel and the signal-to-noise ratio ...
Ascheid, Gerd +4 more
core +1 more source
A Left/Right-Handed Dual Circularly-Polarized Antenna With Duplexing and Filtering Performance
IEEE Access, 2019 A shared-radiator dual-band dual-sense circularly-polarized (CP) microstrip antenna with duplexing and filtering functions is presented. For each band, there is a coupling network, which consists of a hairpin resonator, a straight slot, and a U-slot, and
Jian-Feng Li +4 more
doaj +1 more source
, 2008 We derive a generalised van Cittert-Zernike (vC-Z) theorem for radio astronomy that is valid for partially polarized sources over an arbitrarily wide field-of-view (FoV).
Carozzi, T. D., Woan, G.
core +2 more sources
Experimental study of depolarization and antenna correlation in tunnels in the 1.3 GHz band [PDF]
, 2019 Measurements have been carried out in a low-traffic road tunnel to investigate the influence of the polarization of the transmitting and receiving antennas on the channel characteristics. A real-time channel sounder working in a frequency band around 1.3
Challita, Frederic +5 more
core +4 more sources