End-to-end 140 GHz Wireless Link Demonstration with Fully-Digital Beamformed System

Abu‐Surra, Shadi; Choi, Wonsuk; Choi, Sungtae; Seok, Eunyoung; Kim, Dongjoo; Sharma, Navneet; Advani, Siddharth; Loseu, Vitali; Bae, Kwang‐Hak; Na, Ilju; Farid, Ali A.; Rodwell, M.J.W.; Xu, Gary; Zhang, Jianzhong Charlie

doi:10.1109/iccworkshops50388.2021.9473600

Cited by 42 publications

(8 citation statements)

References 4 publications

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“…A fully digital beamformer at 140 GHz has been presented in [ 80 ] using 128 element phased array. Since digital beamforming is not always practical due to its high power consumption, analog beamforming can be attractive above 100 GHz due to the reduced circuit size.…”

Section: Circuit Level Perspectives Of Jcrs Rf Hardwarementioning

confidence: 99%

Joint Communication and Radar Sensing: RF Hardware Opportunities and Challenges—A Circuits and Systems Perspective

Sen,

Harutyunyan,

Umar

et al. 2023

Sensors

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This paper focuses on the topic of joint communication and radar sensing (JCRS) and its applications in the scope of upcoming sixth-generation (6G) technology. While the fifth-generation applications have reached the consumer market in the last few years, JCRS has been identified as one of the key technologies for next generation networks. The role of JCRS will vary, ranging from tasks such as radar coordination, context awareness for communication, enhanced security, increased availability, and improving the resilience and trustworthiness of future networks. In this work, the niche of JCRS technology in the future 6G ecosystem, as well as several potential applications, are discussed with a focus on RF hardware. The use of centimeter (cmWave) and millimeter (mmWave) frequency spectrums in the context of JCRS system implementation have been further elaborated. After presenting the near-term application scenarios, the circuit implementation perspectives are investigated in terms of radio frequency (RF) front-end architectures, antenna implementation, and phased arrays. Different communication and radar antenna options are compared, and the best candidates are identified. The packaging options are also presented. From circuit and system perspectives, link budget and self-interference cancellation (SIC) are highlighted. Furthermore, future directions including the next steps on the path to enabling JCRS technology are presented throughout this article. Prior works focused more on physical layers and network capabilities of JCRS systems, with less focus on hardware possibilities; to fill this gap, this article aims to contribute to this exciting research topic with a holistic review of RF hardware, highlighting the diversity of applications and the available technologies to tackle the near- and long-term needs of consumer applications.

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Section: Circuit Level Perspectives Of Jcrs Rf Hardwarementioning

confidence: 99%

Joint Communication and Radar Sensing: RF Hardware Opportunities and Challenges—A Circuits and Systems Perspective

Sen,

Harutyunyan,

Umar

et al. 2023

Sensors

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“…It is lower than 0.058 bps/Hz (QPSK, 0.029 coding rate) because the signalling overhead (e.g., demodulation reference signal (DMRS), cyclic prefix) has been taken into account in the simulation. The system level simulation setup is based on an antenna array developed for sub-THz communication [49]. The BS array consists of 16 8V X 1H sub-arrays as shown in Fig.…”

Section: A Link Level Simulationsmentioning

confidence: 99%

Extending Uplink Coverage of mmWave and Terahertz Systems Through Joint Phase-Time Arrays

AlAmmouri

Ratnam

et al. 2022

IEEE Access

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In this paper, we establish the potential of joint phase-time arrays (JPTAs) for uplink coverage extension in cellular systems. JPTA allows the base station (BS) to create frequency-dependent widebeams without sacrificing the array gain. In this work, we propose a novel use case of JPTA where the BS exploits the frequency-dependent beams to serve multiple users' equipment (UEs) at different directions simultaneously with the full array gain and with no inter-UE interference. This is achieved by assigning each UE a corresponding bundle of sub-carriers that benefit from the full array-gain. A key feature of this scheme is the prolonged channel access for uplink communication for each user, due to the BS's ability to serve multiple UEs at the same time. We focus on two performance metrics: uplink coverage and uplink throughput. Our results show that using JPTA can extend the uplink coverage range by 3× while boosting the uplink throughput by providing more flexibility for the BS in resource allocation. These results are based on both theoretical analysis and 3GPP spec-compliant simulations with a sub-terahertz transceiver prototype.

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“…Evidently, this can have drastic effects on performance when steering broadband signals over a large scanning range using an array with a very narrow beamwidth. Shifting to a time delay-based approach avoids this issue but is difficult to achieve electronically over wide delay spreads 15 . These particular challenges can be overcome by leveraging optical techniques.…”

mentioning

confidence: 99%

“…This imposes a significant data rate limit on the system. Abu-Surra et al 15 present a phased array with a substantial steering range, although this can only be done in one dimension over a limited 2 GHz bandwidth. Finally, Dong et al 27 , Elkhouly et al 28 and Ahmed et al 29 all show very impressive implementations and demonstrations for steerable Tx/Rx arrays, with Ahmed et al showing actual beamsteering measurement results.…”

mentioning

confidence: 99%

A compact SiGe D-band power amplifier for scalable photonic-enabled phased antenna arrays

Broucke,

Singh,

Van Osta

et al. 2023

Sci Rep

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To address the rising demand for high-speed wireless data links, communication systems operating at frequencies beyond $${100}\,\hbox {GHz}$$ 100 GHz are being targeted. A key enabling technology in the development of these wireless systems is the phased antenna array. Yet, the design and implementation of such steerable antenna arrays at frequencies over $${100}\,\hbox {GHz}$$ 100 GHz comes with a multitude of challenges. In particular, the cointegration of active electronics at each antenna element poses a major hurdle due to the inherent space constraints in the array. This article proposes a novel scalable concept for opto-electronic phased antenna arrays operating at 140 GHz. It details the system architecture of a transmitter that enables the implementation of large scale, wideband, 2D steerable phased antenna arrays and presents the design and measurement of a compact SiGe power amplifier (PA) chip to be used as one of its key building blocks. The amplifier achieves a gain of 20 dB at 135 GHz, features a $$P_{1dB}$$ P 1 d B of 14.6 dBm and can support data rates up to 45 Gbps in a limited footprint of only 540μm × 550μm. This makes it one of the fastest, most powerful D-band power amplifiers in literature with a footprint compatible with $$\frac{\lambda }{2}$$ λ 2 -spaced phased array integration.

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End-to-end 140 GHz Wireless Link Demonstration with Fully-Digital Beamformed System

Cited by 42 publications

References 4 publications

Joint Communication and Radar Sensing: RF Hardware Opportunities and Challenges—A Circuits and Systems Perspective

Joint Communication and Radar Sensing: RF Hardware Opportunities and Challenges—A Circuits and Systems Perspective

Extending Uplink Coverage of mmWave and Terahertz Systems Through Joint Phase-Time Arrays

A compact SiGe D-band power amplifier for scalable photonic-enabled phased antenna arrays

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