Combined Single-Layer K-Band Transmitarray and Beamforming S-Band Antenna Array for Satcom

Serup, Daniel E.; Pedersen, Gert Frølund; Zhang, Shuai

doi:10.1109/ojap.2022.3203253

Cited by 11 publications

(4 citation statements)

References 30 publications

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“…Antenna beamforming: Antenna beamforming is an approach for directing signals in specific directions while minimizing interference as well as improving signal strength [119]. Moreover, antenna beamforming is also capable of enhancing communication between UAVs and the GCSs in SDUAV networking, leading to higher data rates, a greater communication range, and a more dependable connection for 6G networks [120].…”

Section: Advanced Communication Approaches For Sduav Networkmentioning

confidence: 99%

Software-Defined UAV Networks for 6G Systems: Requirements, Opportunities, Emerging Techniques, Challenges, and Research Directions

Siddiki Abir,

Chowdhury,

Jang

2023

IEEE Open J. Commun. Soc.

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The ever-increasing demand for wireless communication has driven the development of innovative technologies to address the issues that conventional communication networks meet. To support autonomous devices in the sixth-generation (6G) and provide seamless wireless connectivity in inaccessible and hard-to-reach areas, the combination of software-defined networking (SDN) with unmanned aerial vehicles (UAVs) has already shown promises. As the traditional UAV-based cellular network encompasses challenges such as lack of centralized supervision, robust decision-making ability, and dynamic network management, the SDN platform could be an excellent alternative to offer aerial networking for future 6G ecosystem. However, the SDN-assisted UAV paradigm faces a set of challenges and critical issues. For instance, the network management and orchestration, resource allocation and optimization, handover mechanism, spectrum management, energy efficiency, integration of heterogeneous networks, and reliability, thus causing the decrease of quality of services of the SDN-enables UAV networks. To effectively address all these issues and identify the trends of software-defined UAV (SDUAV) networks, more research activities are needed. Unfortunately, there are not any specific guidelines in the literature that address each of these requirements, enabling technologies, emerging techniques, and future research directions in the context of SDN-based UAV networks to enable next-generation 6G systems. Therefore, motivated by this fact, this paper offers a comprehensive evaluation of the state of the SDUAV network and architecture, highlighting its various requirements and different prospects and applications in 6G systems. Besides, this paper also addresses why the combination of SDN and UAV-enabled networks is becoming essential in the 6G networking context and how it can offer more flexibility, scalability, reliability, and efficient connectivity than the conventional approaches to provide features like intelligence, automation, programmability, and centralized controllability. This paper furthermore outlines the difficulties of implementing SDUAV networks, such as security, adaptability, interference management, interoperability, and lack of standardization. Finally, to accomplish the goals, this article provides a roadmap for future trends and research directions in SDUAV networks to support the 6G systems.INDEX TERMS 6G, aerial base station, SDN, SDUAV, UAV-based cellular network. I. INTRODUCTIONThe growing trend of emerging technologies, such as artificial intelligence (AI), augmented reality (AR), virtual reality (VR), extended reality (XR), automated vehicles, electronic health (e-health), cloud computing, Internet of Things (IoT), and Industry 4.0, is culminating a massive amount of data every day [1]. Recently, the International Telecommunication Union (ITU) estimates that traffic volume will be 5016 EB/month, with traffic volume per person reaching 257.1 GB/month [2]. As a result, there will be 97 billion machine-to-machine (M...

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Section: Advanced Communication Approaches For Sduav Networkmentioning

confidence: 99%

Software-Defined UAV Networks for 6G Systems: Requirements, Opportunities, Emerging Techniques, Challenges, and Research Directions

Siddiki Abir,

Chowdhury,

Jang

2023

IEEE Open J. Commun. Soc.

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“…Different use cases and applications set different requirements for the performance and features of antennas [1]- [12]. Transmitarray antennas are often reported in the literature to yield features such as; high gain, dual-band, and circular polarization.…”

Section: Introductionmentioning

confidence: 99%

“…In [1] a shared aperture dual-band transmitarray antenna for S-and Ka-Band is presented. The antenna is a combination of a low-frequency patch antenna array and a high-frequency Transmitarray.…”

Section: Introductionmentioning

confidence: 99%

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Circularly Polarized Shared Aperture K-band Transmitarray and Beamforming S-Band Patch Antenna Array

Serup

Zhang

Pedersen

2023

2023 17th European Conference on Antennas and Propagation (EuCAP)

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This paper presents a circularly polarized shared aperture antenna. The proposed antenna is a combined S-band patch antenna array and a K-band transmitarray antenna. The high-frequency transmitarray feed and the low-frequency patch antenna array share the same aperture area. The high-frequency transmitarray surface only uses a single substrate layer and is electrically transparent to the low-frequency antenna part. With an impressive frequency-ratio of 5.55 and a radiating area of only 10x10 cm the antenna achieves an impedance bandwidth of more than 1 GHz and 5 GHz, and a peak realized gain of 15.35 dBi and 22.85 dBi, in the S-and K-band respectively. Additionally, the low-frequency antenna mode shows a good beamforming performance with a 120-degree steering range with only a 1.25 dB gain variation.

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Circularly Polarized Electromagnetically Controlled Beam-Steerable mm-wave Reflectarray Antenna

Serup,

Aghabeyki,

Zhang

et al. 2024

2024 IEEE International Workshop on Antenna Technology (iWAT)

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Combined Single-Layer K-Band Transmitarray and Beamforming S-Band Antenna Array for Satcom

Cited by 11 publications

References 30 publications

Software-Defined UAV Networks for 6G Systems: Requirements, Opportunities, Emerging Techniques, Challenges, and Research Directions

Software-Defined UAV Networks for 6G Systems: Requirements, Opportunities, Emerging Techniques, Challenges, and Research Directions

Circularly Polarized Shared Aperture K-band Transmitarray and Beamforming S-Band Patch Antenna Array

Circularly Polarized Electromagnetically Controlled Beam-Steerable mm-wave Reflectarray Antenna

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