A 20/30 GHz Reflectarray Backed by FSS for Shared Aperture <i>Ku</i>/<i>Ka</i>-Band Satellite Communication Antennas

Abdollahvand, M.; Forooraghi, Keyvan; Encinar, José A.; Atlasbaf, Zahra; Martinez‐de‐Rioja, Eduardo

doi:10.1109/lawp.2020.2972024

Cited by 36 publications

(21 citation statements)

References 24 publications

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“…Several previously published works are compared and listed in Table 3. It is clearly observed that the proposed reflectarray element has the advantages of smaller unit‐cell size and wider phase range 17–20 . And the measured peak aperture efficiency can reach 31.9% compared to those FSS‐backed reflectarrays reported in the literature.…”

Section: Resultsmentioning

confidence: 74%

Design of a frequency selective surface‐backed microstrip reflectarray antenna using Minkowski ring elements

Cao

Zhang

Tian

et al. 2022

Int J RF Mic Comp-Aid Eng

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A novel frequency selective surface (FSS)‐backed subwavelength reflectarray element is proposed in this article. The element consists of an inner square ring and an outer Minkowski ring. The proposed fractal element could achieve smaller interelement spacing and better reflection phase performance due to its space‐filling property and self‐similar geometry. An 11 × 11‐element reflectarray with reduced element spacing of 0.38λ0(λ0‐the free space wavelength at 5.8 GHz) is designed. A FSS is used to replace the perfect electric conductor (PEC) ground. In the working frequency, the electromagnetic waves are reflected and result in a smoother and more linear reflection phase curve. Moreover, the radar cross section (RCS) of the reflectarray antenna is also reduced by using the FSS ground. A prototype antenna is then fabricated and measured. The measured results show that the antenna has a peak gain of 18.6 dBi, and an aperture efficiency of about 31.9%. A measured 1‐dB gain bandwidth of 14.3% is obtained. Meanwhile, the measured cross‐polarization and side‐lobe levels are −20 dB and −13 dB, respectively. The simulated results demonstrate that the monostatic RCS can be significantly reduced with a fractional bandwidth of 32.76% and 44.83% for the lower and upper bands with reduced levels of 5 dB, respectively.

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Section: Resultsmentioning

confidence: 74%

Design of a frequency selective surface‐backed microstrip reflectarray antenna using Minkowski ring elements

Cao

Zhang

Tian

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…The high-throughput maritime satellites working at Ku/Ka-band have been regarded as an effective solution for maritime communications, especially for the coverage of high sea. However, since that the Ku/Kaband communications are highly vulnerable to the rain and fog [6] , satellites can hardly guarantee an all-weather high-throughput link for maritime broadband communications.…”

Section: Limited and Vulnerable Satellite Communicationsmentioning

confidence: 99%

Convergence of broadband and broadcast/multicast in maritime information networks

Song

Ren

et al. 2021

Tsinghua Sci. Technol.

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Recently, the fifth-generation (5G) of wireless networks mainly focuses on the terrestrial applications.However, the well-developed emerging technologies in 5G are hardly applied to the maritime communications, resulting from the lack of communication infrastructure deployed on the vast ocean, as well as different characteristics of wireless propagation environment over the sea and maritime user distribution. To satisfy the expected plethora of broadband communications and multimedia applications on the ocean, a brand-new maritime information network with a comprehensive coverage capacity in terms of all-hour, all-weather, and all-sea-area has been expected as a revolutionary paradigm to extend the terrestrial capacity of enhanced broadband, massive access, ultra-reliable, and low-latency to the vast ocean. Further considering the limited available resource of maritime communication infrastructure, the convergence of broadband and broadcast/multicast can be regarded as a possible yet practical solution for realizing an efficient and flexible resource configuration with high quality of services. Moreover, according to such multi-functionality and all-coverage maritime information network, the monitoring and sensing of vast ocean area relying on massive Ocean of Things and advanced radar techniques can be also supported. Concerning these issues above, this study proposes a Software Defined Networking (SDN) based Maritime Giant Cellular Network (MagicNet) architecture for broadband and multimedia services. Based on this network, the convergence techniques of broadband and broadcast/multicast, and their supporting for maritime monitoring and marine sensing are also introduced and surveyed.

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“…To meet the requirements of the rapid development of communication systems, the bidirectional antenna combining the RA and the TA is the trend [10]- [13]. Bidirectional antennas have two opposite beam directions to achieve better coverage, making them potential in narrow, long, and straight communication scenarios.…”

Section: Introductionmentioning

confidence: 99%

“…A frequency selective surface (FSS) is used in [10] as the ground of the RA, which achieves controllable capability of reflection in K/Ka-bands and transmission in Ku-band by changing the operation frequency of the feed. Similar to [10], a dual-band phase-shifting surface array has been proposed using double-ring FSS as the ground [11]. On the other hand, the grid polarizer is also widely used as the ground of the RAs.…”

Section: Introductionmentioning

confidence: 99%

A Single-Layer Reflect-Transmit-Array Antenna With Polarization-Dependent Operation

Song

Xue²,

Cai

et al. 2021

IEEE Access

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In this paper, a novel low-profile, dual-polarized reflect-transmit-array antenna is proposed to independently control the forward and backward beams. A single-layer polarization-dependent element is designed with 0.1 λ0-thickness at 10 GHz, which comprises only two layers of metal patches printed on a dielectric substrate and two metallized vias. Through changing the polarization direction of the incident wave, the operating mode of the proposed array can be easily shifted among reflection mode, reflectiontransmission mode, as well as transmission mode. To verify the design concept, a circular reflect-transmitarray (D = 250 mm) is designed, fabricated, and measured. The measured results indicate a 1 dB bandwidth of 17% (9.8-11.5 GHz) in reflection mode and a measured peak gain of 24.2 dB at 10.5 GHz. Moreover, a 1 dB bandwidth of 6% (9.7-10.3 GHz) can be achieved in transmission mode, and the measured peak gain is 24.6 dB at 10 GHz. The results prove that the proposed design is promising for bidirectional wireless communication applications.

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A 20/30 GHz Reflectarray Backed by FSS for Shared Aperture Ku/Ka-Band Satellite Communication Antennas

Cited by 36 publications

References 24 publications

Design of a frequency selective surface‐backed microstrip reflectarray antenna using Minkowski ring elements

Design of a frequency selective surface‐backed microstrip reflectarray antenna using Minkowski ring elements

Convergence of broadband and broadcast/multicast in maritime information networks

A Single-Layer Reflect-Transmit-Array Antenna With Polarization-Dependent Operation

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