A 4-element 28 GHz Millimeter-wave MIMO Array with Single-wire Interface using Code-Domain Multiplexing in 65 nm CMOS

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

doi:10.1109/rfic.2019.8701732

Cited by 13 publications

(6 citation statements)

References 3 publications

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“…We also envision that this proposed PTA with prism-like spectral-to-spatial mapping property can be potentially explored to create a single input interface for multi-beam MIMO operation, where different frequency contents in a multi-frequency input are focused in different directions. Single-wire MIMO interface remains an active area for large scale MIMO arrays where routing multiple IF inputs to multiple chiplets is cumbersome [23][24][25]. Since this behavior is reconfigurable as a function of the joint delay/phase shift combination, the beam directions in the spatial MIMO operation could also be re-programmed.…”

Section: Discussionmentioning

confidence: 99%

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A Reconfigurable Phase-Time Array Transmitter Achieving Keyless Secured Transmission and Multi-Receiver Localization for Low-Latency Joint Communication and Sensing

Mannem

Park

Erfani

et al. 2023

IEEE J. Solid-State Circuits

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The vast available spectrum at Mm-Wave/Terahertz (THz) frequencies is envisioned as a key enabler to solve the everincreasing data rate needs in crowded urban environments and lead the next wireless technology revolution. To overcome the high path loss present at mm-Wave/THz, highly directional antenna arrays have become ubiquitous. Their future large-scale deployment will naturally create dense wireless sensor networks, which in-turn enable joint communication and sensing. However, beamforming of high-directivity antenna arrays relies on real-time precise localization between transmitters (TXs) and receivers (RXs), to ensure robustness in dynamic mobile applications. Moreover, traditional digital encryption and decryption at multi-Gbps data rate cause large power and latency overhead, and thus wireless physical layer security has become a promising solution. In this paper, we propose and demonstrate a reconfigurable Phase-Time Array (PTA) TX with prism-like spectral-to-spatial mapping of wideband transmitted signals, which achieves keyless physically secured wireless communication and fast multi-RX localization to enable low-latency joint communication and sensing within the same wireless electronics frontend. The PTA realizes reconfigurable spectral-to-spatial mapping by applying both a phase shift and true time delay at each array element. This intentionally creates and exploits the array beam squinting effect, such that different frequency components of a wideband signal are transmitted in different directions, analogous to an optical prism. Therefore, multiple RX nodes can simultaneously determine their angular positions relative to the TX array using their received signals for fast multi-RX localization. Judiciously engineering the prism-like beam squinting in PTA TX can also selectively distort signal transmission to unwanted directions for secured communication without cryptography. Furthermore, the PTA scheme can reconfigure its element-level phase-time delay combinations to attain variable levels of communication security and localization/sensing performance depending on the needs.

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Section: Discussionmentioning

confidence: 99%

“…We also substitute wave number (k), d with k = 2π/λ and d = λ0/2. Equation ( 22) can be simplified as equations ( 23)- (24). The peak of the radiation pattern "θpeak" for a frequency "f" can be derived as shown in equation ( 25) below.…”

Section: Appendixmentioning

confidence: 99%

A Reconfigurable Phase-Time Array Transmitter Achieving Keyless Secured Transmission and Multi-Receiver Localization for Low-Latency Joint Communication and Sensing

Mannem

Park

Erfani

et al. 2023

IEEE J. Solid-State Circuits

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“…However, additional hardware was required, a field programmable gate array (FPGA) board for digital control and an Ettus B200 mini software-defined radio (SDR) for data waveform control. In [15], a highly compact 28 GHz complementary metal-oxide-semiconductor (CMOS) integrated circuit (IC) with multiple input multiple output (MIMO) and beamforming capabilities with a single wire for baseband multiplexing is reported. However, it requires heavy digital signal processing (DSP) MIMO operations to retrieve the information.…”

Section: Introductionmentioning

confidence: 99%

“…The concept of beamforming, in the sense of the ability to control the radiation shape of an antenna array, can be performed either digitally, like the examples presented previously [14][15][16][17][18][19], analogically (by using the frontend analog phase shifters [20]) or in a hybrid way [21]. A millimeter-wave hybrid beamforming system architecture based on analog phased subarray is reported in [22].…”

Section: Introductionmentioning

confidence: 99%

“…This work uses a 32-element antenna array with a hybrid beamforming transceiver to operate at the 28 GHz band in TDD mode, with 500 MHz bandwidth. An important aspect is the reduction in the number of intermediate frequency (IF) channels compared to [14][15][16][17][18][19], reducing the cost comparing to fully digital architectures. However, one issue with this architecture is the analog phase shifting, which is critical to increasing the insertion loss up to 19.5 dB, requiring the use of additional amplifiers to compensate such losses.…”

Section: Introductionmentioning

confidence: 99%

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Software-Defined Radio Beamforming System for 5G/Radar Applications

et al. 2020

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Based on the flexibility of software-defined radio (SDR) techniques applied to an array of antennas, this article presents a beamforming architecture designed to operate in millimeter-wave bands (28 GHz), with possible applications in radar and 5G systems. The system structure, including its main constituents such as the radio frequency (RF) frontend modules, the radiating elements as well as the baseband processing on the host computer are widely described. Beamforming is achieved by digitally controlling the signals that feed the antennas. The experimental measurements performed in an anechoic chamber validate the proposed approach.

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A Highly Linearized Ka-band Heterodyne Receiver using a Folded Class-AB Inductive Peaking Mixer and Magnetic-Self-Cancellation-Transformer-Based IF Amplifiers

Deng

Jia

et al. 2022

2022 IEEE International Symposium on Circuits and Systems (ISCAS)

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A 4-element 28 GHz Millimeter-wave MIMO Array with Single-wire Interface using Code-Domain Multiplexing in 65 nm CMOS

Cited by 13 publications

References 3 publications

A Reconfigurable Phase-Time Array Transmitter Achieving Keyless Secured Transmission and Multi-Receiver Localization for Low-Latency Joint Communication and Sensing

A Reconfigurable Phase-Time Array Transmitter Achieving Keyless Secured Transmission and Multi-Receiver Localization for Low-Latency Joint Communication and Sensing

Software-Defined Radio Beamforming System for 5G/Radar Applications

A Highly Linearized Ka-band Heterodyne Receiver using a Folded Class-AB Inductive Peaking Mixer and Magnetic-Self-Cancellation-Transformer-Based IF Amplifiers

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