Code-Domain Multiplexing for Shared IF/LO Interfaces in Millimeter-Wave MIMO Arrays

Johnson, Manoj; Dascurcu, Armagan; Zhan, Kun; Galioğlu, Arman; Adepu, Naresh; Jain, Sanket; Krishnaswamy, Harish; Natarajan, Arun

doi:10.1109/jssc.2020.2967538

Cited by 13 publications

(3 citation statements)

References 33 publications

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“…It is thus evident that these spatial multiplexing systems typically suffer from inherently space constraints as the amount of required circuitry for the analog beamforming network directly scales with the number of beams to be supported. In comparison, analog IF/BB beamformers can potentially handle higher numbers of concurrent independent beams as they feature of a smaller circuit area and relaxed routing complexity [73], [74], [76]. On the other hand, multi-beam communication systems using IF/BB domain beamformers pose narrower instantaneous bandwidths and comes with the design challenge in providing coherent LO distribution across subarray beamformer ICs [44], [75].…”

Section: A Beamforming Techniquesmentioning

confidence: 99%

“…Owing to the enormous advances in CMOS semiconductor technologies, meanwhile also enables the commercial realization of data converters for direct RF sampling up to the Ka-band [180]. Although, power consumption is still the most significant technical hurdle for this technology to be used on element level in mobile DBF antenna terminals, the availability of high-performance data converters has paved the path for new code-based DBF architectures [76], [181]. In these contributions, more specifically, a code division multiplexing technique is used to aggregate the IF signals from multiple antenna elements into a single ADC.…”

Section: ) Digital Beamformer Asicsmentioning

confidence: 99%

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Electronically Steerable Antennas for Future Heterogeneous Communication Networks: Review and Perspectives

et al. 2022

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Satellite, fifth generation (5G), and sixth generation (6G) mobile communication systems operating at micro-and millimeter wave frequencies are an essential pillar in advanced network architectures for high-throughput low latency services. The decisive factors for this current development were the significant technological advances accomplished over the last two decades, which meanwhile enable highly integrated, feature-rich, and cost-effective realizations of complete phased array transceiver topologies. Motivated through the today's trend for heterogeneous constellation types to provide truly global coverage, this contribution reviews the current state-of-the-art of electronically steerable antennas for terrestrial and non-terrestrial communication systems up to 100 GHz. First, the potential benefits and limitations of the most relevant technologies are contrasted and put into context with recent system architectures for adaptive beamforming. Their operating principles along with various experimental implementation and achievements providing advanced capabilities such as multi-band/multi-beam operation, polarization agility, and wideangle scanning are thoroughly presented. Particular emphasis is laid on the review of direct radiating arrays, quasi-optical antenna configurations, and metasurface-based antennas.INDEX TERMS Satellite communications on the move (SOTM), fifth generation (5G), sixth generation (6G), hybrid satellite constellations, aerial networks, electronic steering, phased array, antennas.This article has been accepted for inclusion in a future issue of this journal. Content is final as presented, with the exception of pagination. TOBIAS CHALOUN (Member, IEEE) received the Dipl.-Ing. degree and the Dr.-Ing. degree (with hons.

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Section: A Beamforming Techniquesmentioning

confidence: 99%

Section: ) Digital Beamformer Asicsmentioning

confidence: 99%

Electronically Steerable Antennas for Future Heterogeneous Communication Networks: Review and Perspectives

et al. 2022

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“…This means that higher frequencies are greatly suffering from atmospheric attenuation. In order to reduce path losses at higher frequencies, a technique of a high gain with a narrow beam radiation pattern produced by antenna is used [ 11 , 12 , 13 , 14 , 15 ]. However, using the array technique limits the channel capacity, which is one of the main aims of 5G; hence the array technique cannot utilize the multipath property, which can be helpful in enhancing the channel capacity [ 16 , 17 , 18 ].…”

Section: Introductionmentioning

confidence: 99%

Design of a Millimeter-Wave MIMO Antenna Array for 5G Communication Terminals

Khan¹,

Ullah²,

Ali³

et al. 2022

Sensors

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This paper presents a design of multiple input multiple output (MIMO) antenna array for 5G millimeter-wave (mm-wave) communication systems. The proposed MIMO configuration consists of a two antenna arrays combination. Each antenna array consists of four elements which are arranged in an even manner, while two arrays are then assembled with a 90-degree shift with respect to each other. The substrate used is a 0.254 mm thick Rogers RT5880 with a dielectric constant of 2.2 and loss tangent of 0.0009, correspondingly. The proposed MIMO antenna array covers the 37 GHz frequency band, dedicated for 5G millimeter-wave communication applications. The proposed antenna element yields a gain of 6.84 dB, which is enhanced up to 12.8 dB by adopting a four elements array configuration. The proposed MIMO antenna array performance metrics, such as envelope correlation coefficient (ECC) and diversity gain (DG), are observed, which are found to be under the standard threshold. More than 85% of the radiation efficiency of the proposed MIMO antenna array is observed to be within the desired operating frequency band. All the proposed designs are simulated in computer simulation technology (CST) software. Furthermore, the measurements are carried out for the proposed MIMO antenna array, where a good agreement with simulated results is observed. Thus, the proposed design can be a potential candidate for 5G millimeter-wave communication systems.

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