A High-Gain Dual-Band and Dual-Polarized Transmitarray Using Novel Loop Elements

Aziz, Abdul; Yang, Fan; Xu, Shenheng; Li, Maokun; Chen, Haitao

doi:10.1109/lawp.2019.2912645

Cited by 43 publications

(22 citation statements)

References 16 publications

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“…In [30], it is analysed and designed, implemented and test a transmit array antenna with high-gain dual-band and dual-polarized. The antenna was designed to operate in satellite communications.…”

Section: Double Focus Antenna -Offset Gregorymentioning

confidence: 99%

Worldwide Coverage Mobile Systems for Supra-Smart Cities Communications: Featured Antennas and Design

Benavente-Peces

Herrero-Sebastián

2020

Smart Cities

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Current terrestrial mobile communications networks can’t provide worldwide coverage. Satellite communications are expensive, and terminals are large and heavy. Worldwide mobile coverage requires the use of satellites providing an appropriate QoS, including polar regions. The analysis of the potential satellite constellations demonstrates that LEO one is the best solution. A new generation of low cost, small size, lightweight and global mobile coverage LEO satellites is emerging. The main limitation of the terminals is the antenna size factor, and innovative antennas must be developed to meet this goal. This paper investigates the technologies and techniques for designing and developing antennas aimed at LEO satellite communications in Smart Cities and beyond, which are especially beneficial for mobile communications in areas without 4G/5G coverage. The paper focuses on the terrestrial segment and future mobile devices, remarking the design constraints. In this scenario, the paper reviews the most relevant technologies and techniques used to design suitable antennas. The investigation analyses the state-of-the-art and most recent advances in the design of antennas operating in the Ku-band. The main contribution of the authors is a novel antenna design approach based on SIW technology. The antenna features are compared with other approaches, highlighting the benefits, advantages and drawbacks. As a conclusion, the proposed antenna demonstrates to be a good solution to meet the design constraints for such an application: light, low cost, small size factor.

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Section: Double Focus Antenna -Offset Gregorymentioning

confidence: 99%

Worldwide Coverage Mobile Systems for Supra-Smart Cities Communications: Featured Antennas and Design

Benavente-Peces

Herrero-Sebastián

2020

Smart Cities

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“…As an alternative approach, lenses or transmitarrays that can collimate the EMwaves from the source are used to obtain highly-directional beams. Over the last decade, various kinds of mm-wave lenses and transmitarrays based on the concept of metasurface have been proposed to meet the requirement of different mm-wave application scenarios [11][12][13][14][15][16][17][18][19][20][21][22][23][24]. Nevertheless, to achieve flexible phase control over a broad span covering the range [−π, π] of the wavefront, the "meta-atoms" are usually implemented by cascading several resonant cells in a multilayered form with bonding process.…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, many state-of-art mm-wave metalenses and transmitarrays are limited to a single band [15][16][17][18][19][20][21][22]. To achieve dual-band feature, most of the metalenses or transmitarrays use orthogonal polarization for phase control over two bands [23][24][25][26]. Dual-band single-polarization mmwave metalenses and transmitarrays are rarely reported because it is difficult for the "meta-atoms" to achieve dual-band/multiband phase control of the wavefront independently in a single polarization.…”

Section: Introductionmentioning

confidence: 99%

Additively Manufactured Millimeter-Wave Dual-Band Single-Polarization Shared Aperture Fresnel Zone Plate Metalens Antenna

Zhu

Yang

et al. 2021

IEEE Trans. Antennas Propagat.

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Fresnel zone plate (FZP) lens antenna, consisting of a set of alternative transparent and opaque concentric rings arranged on curvilinear or flat surfaces, have been widely used in various fields for sensing and communications. Nevertheless, the state-of-art FZP lens antennas are limited to a single band due to the frequency-dependent feature, which hinders their use in multiband applications. In this work, a shared-aperture dual-band FZP metalens antenna is proposed by merging two single-band FZP metalens antenna operating at distinct frequency bands seamlessly into one. Instead of using conventional metallic conductors, double-screen meta-grids are devised in this work to form the concentric rings. Because the meta-grids show distinct transmission/reflection properties at different frequencies, the performance of one set of concentric rings operating at the one band will not be affected by the other operating at the different band. In addition, to compensate for the phase shift introduced by the meta-grids, an additional dielectric ring layer is added atop the FZP taking advantage of additive manufacturing. Thus, the radiation performance of the dual-band FZP lens antenna is comparable to that of each single FZP metalens antenna. For proof-of-concept, an antenna prototype operating at the dualband, 75 GHz and 120 GHz with a frequency ratio of 1.6, is fabricated using an integrated additively manufactured electronics (AME) technique. The measured peak gains of 20.3 dBi and 21.9 dBi are achieved at 75 GHz and 120 GHz, respectively.

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“…Although numerous challenges remain in terms of designing dual-band TAs, some outstanding designs have been presented [21][22][23][24][25]. For example, a dual-band TA has been proposed using a four-layer structure, and a 360° phase shift range with transmission magnitude greater than −3 dB This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.…”

Section: Introductionmentioning

confidence: 99%

“…This design achieved a 300° phase shift range and achieved aperture efficiencies of 45% and 41.3% and 1-dB gain bandwidths of 7.2% and 7.0% at 12.5 and 14.25 GHz, respectively. In [25], a dual-band and dualpolarized TA using a three-layer structure was presented in which the two types of loop elements are interlaced with each other and operate independently in two different bands (12.5 GHz/14.25 GHz). A 300° phase shift range with transmission amplitude greater than -2 dB is achieved in both bands.…”

Section: Introductionmentioning

confidence: 99%

Double-Layer Ku/K Dual-Band Orthogonally Polarized High-Efficiency Transmitarray Antenna

et al. 2021

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This paper presents a double-layer, dual-band, orthogonally polarized, highly efficient transmitarray antenna (TA) operated in the Ku/K band (14 GHz/20 GHz) for millimeter wave (MMW) wireless communication systems (WCS). The proposed TA consists of two types of multi-resonant dipoles with metal vias, operating in the Ku and K bands. The Ku and K elements are interlaced with each other independently to ensure dual-band orthogonally polarized operation. The proposed double-layer elements obtained a 360° phase shift range with transmission amplitude greater than -2 dB. They also achieved independent phase responses in both bands by two orthogonally arranged elements. The proposed TA has been designed, manufactured and measured. The measurement results, which are consistent with simulation results, indicate that maximum gains of 25.2 and 27.4 dBi corresponding to aperture efficiencies of 55% and 49% are obtained at 13.75 and 20 GHz, respectively. Moreover, 1-dB gain bandwidths of 10% and 6% are also achieved in the Ku and K frequency bands, respectively. Therefore, the proposed double-layer Ku/K dual-band TA with high efficiency and simple design is a good candidate for MMW WCS.

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A High-Gain Dual-Band and Dual-Polarized Transmitarray Using Novel Loop Elements

Cited by 43 publications

References 16 publications

Worldwide Coverage Mobile Systems for Supra-Smart Cities Communications: Featured Antennas and Design

Worldwide Coverage Mobile Systems for Supra-Smart Cities Communications: Featured Antennas and Design

Additively Manufactured Millimeter-Wave Dual-Band Single-Polarization Shared Aperture Fresnel Zone Plate Metalens Antenna

Double-Layer Ku/K Dual-Band Orthogonally Polarized High-Efficiency Transmitarray Antenna

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