Dual-Band, Aperture-Shared Transmitarray for Vehicular SatCom Applications

Madi, Reda; Clemente, Antonio; Sauleau, Ronan

doi:10.1109/access.2023.3293655

Cited by 1 publication

(2 citation statements)

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“…The possibility to steer mechanically the radiation pattern has also been tested by displacing the primary feeder outward along yf -axis (Fig. 8a) [11]. The comparison between the calculated and measured gain evaluated at 8 GHz for two feeder displacements is presented in Fig.…”

Section: A Mechanically Beam-steering Capabilitymentioning

confidence: 99%

“…In the former case an excellent beam collimation and a high aperture efficiency is achieved due to the large set of phase adjustments, at the cost of a narrow working bandwidth [8], [9], [10]. On the contrary, larger frequency bands, less complex design, easy fabrication as well as a certain suitability for implementing reconfigurability are provided by the latter subset [11], [12], [13], [14], [15], [16]. Among the numerus techniques to control the TA spatial phase profile [17], [18], one of the most effective syntheses relies on the use of cascading frequency selective surfaces (FSSs) for altering the impinging electromagnetic wave characteristics [19], [20], [21], [22].…”

Section: Introductionmentioning

confidence: 99%

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Low Profile Dual Linearly Polarized 1-bit Transmitarray Exploiting Two Metallic Layers

Dicandia,

Genovesi

2024

IEEE Access

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A novel azimuth-independent dual linearly polarized (LP) transmitarray (TA) based on a polarization rotator is presented. The exploitation of either right-handed circularly polarized (RHCP) or lefthanded CP (LHCP) scattered field is at the basis of the proposed TA. The employed unit cell guarantees a low insertion loss as well as a crosspolar transmission phase difference of 0° or 180°. The TA unit cell response is insensitive to any angular rotation of the panel, or the primary feed, along . The conceived dualpolarized 1-bit TA allows achieving up to 16.5 % of 3 dB gain bandwidth (BW3dB) with a maximum gain around 22 dBi and a peak aperture efficiency of 30.4 %. Unlike the previously reported dual-polarized TAs, this novel structure consists of a very thin dielectric layer, namely 0.08 0 at central frequency, comprising only two metallic layers making it a cost-effective solution as well as compliant with the increasingly strict profile requirements imposed by many of the future terrestrial and non-terrestrial wireless communication paradigms such as vehicular communications or SatCom systems. As a proof of concept, a prototype of the proposed dual-polarized 1-bit TA is manufactured and tested for assessing the benefits of this design approach.

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Section: A Mechanically Beam-steering Capabilitymentioning

confidence: 99%