Results 71 to 80 of about 4,264 (215)
Electronics Letters, 2003 It is shown that the dominant factor controlling reflectarray bandwidth is the bandwidth of the radiating element, and that the effect of non-constant path delays over the surface of the flat reflector has little significance unless the aperture is electrically very large and the f/D ratio is small. An example of a polarisation-twist reflectarray using
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IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.This paper presents a frequency‐reconfigurable dual‐band nematic liquid‐crystal (LC) reflectarray antenna with angular beam separation for satellite communication. Dual‐band operation at 12 and 28 GHz is achieved through voltage‐controlled reconfiguration of the LC layer.
Hsi‐Hsir Chou +3 more
wiley +1 more source
Open Resonator System for Reflectarray Elements Characterization
International Journal of Antennas and Propagation, 2012 An open resonator system is proposed in this work to study the phase behavior of reflectarrays cells. The characterization of the single reflectarray element is performed by assuming a Gaussian plane wave normally incident on an infinite periodic array ...
G. Di Massa, S. Costanzo, O. H. Moreno
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IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.An efficient and broad‐band reflective microstrip polariser converter is proposed that converts linear polarization plane waves to circular polarization ones. It is experimentally shown that the designed device converts the LP plane‐waves to a CP one within 7.2∼12.6 GHz with 3‐dB AR bandwidth = 54.5%.
Mahdieh Bozorgi, Mahmood Rafaei‐Booket
wiley +1 more source
Near-field measurements of a millimeter-wave reflectarray at 120 GHz
, 2012 In this paper, we describe the near-field measurements of the surface of a 120 GHz reflectarray. The reconfigurable offset-fed reflectarray under development consist of approximately 3700 coplanar patch antenna elements which are individually controlled ...
Ala-Laurinaho, J. +9 more
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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 reducing atmospheric losses.
Eray Guven +3 more
openaire +4 more sources
IET Microwaves, Antennas &Propagation, Volume 20, Issue 1, January/December 2026.This paper presents a broadband 1‐bit reconfigurable transmitarray operating at 11.7 GHz, using interdigital structures to achieve a 23.1% 3‐dB transmission‐loss bandwidth without requiring an air gap. An EM‐acquired CRCS‐based link gain model is developed to evaluate the radiation gain, scattering characteristics and gain‐frequency response of the RTA.
Ting‐Hao Shih +2 more
wiley +1 more source
IEEE Access, 2018 In this paper, a wideband tunable reflectarray consisting of a graphene-based metamaterial structure has been developed to generate an orbital angular momentum (OAM) vortex wave in terahertz.
Yan Shi, Ying Zhang
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DoA estimation with reflectarray according to single pixel camera principle
, 2022 S.268-272This paper suggests using a tunable reflectarray as a hardware source of Sensing Functions (SFs) for Direction of Arrival (DoA) estimation based on Compressed Sensing (CS).
Skoblikov, Sergii +4 more
core +1 more source
Integrated Solar Array and Reflectarray Antenna for High Bandwidth Cubesats [PDF]
, 2015 The Integrated Solar Array and Reflectarray Antenna (ISARA) mission will demonstrate a reflectarray antenna that increases downlink data rates for Cube- Sats from the existing baseline rate of 9.6 kilobits per second (kbps) to more than 100 megabits per ...
Petro, Andrew +2 more
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