Results 21 to 30 of about 53,982 (285)
A Dual-Band Dual-Polarized Omnidirectional Antenna
Frontiers in Physics, 2020 A dual-band dual-polarized omnidirectional antenna is investigated. The two bands are generated by a lower circular patch and an upper circular patch, respectively.
Hui Gu, Lei Ge, Jihong Zhang
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Dual-Band and Multi-State Polarization Conversion Using aTerahertz Symmetry-Breaking Metadevice
Nanomaterials, 2023 We numerically and experimentally demonstrate a terahertz metadevice consisting of split-ring resonators (SRRs) present within square metallic rings. This device can function as a dual-band polarization converter by breaking the symmetry of SRRs. Under x-
Yuwang Deng +7 more
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A dual-polarized slot antenna for millimeter waves [PDF]
, 1998 We describe a new dual-polarized slot antenna to be used with quad-optical devices such as superconductor-insulator-superconductor (SIS) mixers at millimeter and submillimeter wavelengths.
Chattopadhyay, Goutam, Zmuidzinas, Jonas
core +2 more sources
IEEE Access, 2017 In this paper, we propose a polarization filtering-based transmission scheme to enhance the physical layer security in the dual-polarized satellite communication.
Zhangkai Luo, Huali Wang, Kaijie Zhou
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A dual-polarized quasi-optical SIS mixer at 550 GHz [PDF]
, 2000 In this paper, we describe the design, fabrication, and the performance of a low-noise dual-polarized quasi-optical superconductor-insulator-superconductor (SIS) mixer at 550 GHz.
Chattopadhyay, Goutam +3 more
core +1 more source
IEEE Access, 2017 A fast dual polarization hopping (FDPH) system is designed to enhance the physical layer secure transmission in fixed down-link satellite communications. In order to prevent the eavesdropper from detecting transmitted signals, a pair of dual polarization
Xiaokai Zhang +2 more
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Design and Fabrication of a dual-polar reflector array antenna for satellite applications [PDF]
فصلنامه علوم و فناوری فضایی, 2020 This paper presents a new unit to design dual linearly polarized reflectarray antenna at ku for satellite telecommunication. Two orthogonal sets of parallel dipoles are used for each polarization to achieve more degree of freedom in the design and wider ...
Alireza HeshmatiMoez +3 more
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Collocated Microstrip Antennas for MIMO Systems with a Low Mutual Coupling Using Mode Confinement [PDF]
, 2010 WOSInternational audienceIn this paper, collocated antennas for MIMO systems are presented. The structure is composed of a dual-polarized microstrip square patch combined to a dual-polarized microstrip square ring.
Avrillon, Stéphane +3 more
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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
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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
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