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Multibeam Reflectarrays in Ka-Band for Efficient Antenna Farms Onboard Broadband Communication Satellites [PDF]
Sensors, 2020 Broadband communication satellites in Ka-band commonly use four reflector antennas to generate a multispot coverage. In this paper, four different multibeam antenna farms are proposed to generate the complete multispot coverage using only two multibeam ...
Daniel Martinez-de-Rioja +4 more
doaj +3 more sources
Wideband Reflectarrays for 5G/6G: A Survey
IEEE Open Journal of Antennas and Propagation, 2022 Application demand for faster data rates is driving the need for wider operating bandwidth of future 5G/6G communication systems which in turn poses stringent requirements on the design of suitable antennas.
Abbas Jamalipour +2 more
exaly +3 more sources
On the Role of Reflectarrays for Interplanetary Links
IEEE Open Journal of the Communications SocietyInterplanetary links (IPL) serve as crucial enablers for space exploration, facilitating secure and adaptable space missions. An integrated IPL with inter-satellite communication (IP-ISL) establishes a unified deep space network, expanding coverage and ...
Eray Guven +3 more
doaj +4 more sources
Analysis and Experimental Demonstration of Reflectarray Antennas in Quasi-Regular Lattices
IEEE Open Journal of Antennas and Propagation, 2023 This paper presents investigations on reflectarray antennas using non-periodic element distributions. The study involves the analysis and design of two reflectarrays based on quasi-periodic lattices with rectangular and pentagonal profiles, whose ...
Borja Imaz-Lueje +3 more
doaj +1 more source
Shaped-Pattern Reflectarray Antennas for mm-Wave Networks Using a Simple Cell Topology
IEEE Access, 2022 In this paper, it is proposed the use of ultra-thin reflectarrays in some emerging scenarios in the new mm-wave cellular networks such as 5G, Beyond-5G (B5G), and future 6G.
Borja Imaz-Lueje +4 more
doaj +1 more source
IEEE Open Journal of Antennas and Propagation, 2023 The feed for reflectarrays and transmitarrays is crucial for determining the overall antenna aperture efficiency, gain, and power handling. In the past, several methods, such as altering the horn shape to achieve higher modes, have been employed to ...
Eric B. Whiting +6 more
doaj +1 more source
A Low Profile Planar Dual-Polarized Tightly Coupled Dipole Reflectarray With 5:1 Bandwidth
IEEE Open Journal of Antennas and Propagation, 2022 This work introduces an extremely low profile ( $0.4\lambda _{high}$ ) planar ultra-wideband dual-polarized reflectarray. The unit-cell structure of the array is modular in nature, and without any electrical connection between adjacent unit-cells.
Muhammad Hamza +2 more
doaj +1 more source
Rapid Design of 3D Reflectarray Antennas by Inverse Surrogate Modeling and Regularization
IEEE Access, 2023 Reflectarrays (RAs) exhibit important advantages over conventional antenna arrays, especially in terms of realizing pencil-beam patterns without the employment of the feeding networks.
Slawomir Koziel +3 more
doaj +1 more source
A 1-Bit Coding Metasurface With Polarization Conversion in X-Band
Frontiers in Materials, 2022 Polarization conversion metasurfaces are widely used in optical devices, microwave devices and communication systems, owing to their unique polarization modulation characteristics.
Wen Hua Gao +3 more
doaj +1 more source
Terahertz Beam Steering Using a MEMS-Based Reflectarray Configured by a Genetic Algorithm
IEEE Access, 2022 With the increase in potential uses of terahertz technology, the need for terahertz transceivers with application-oriented adaptive radiation patterns has emerged.
Xuan Liu +10 more
doaj +1 more source