A 25-30 GHz 8-antenna 2-stream hybrid beamforming receiver for MIMO communication

Mondal, Susnata; Singh, Rahul; Hussein, Ahmed I.; Paramesh, Jeyanandh

doi:10.1109/rfic.2017.7969030

Cited by 18 publications

(10 citation statements)

References 3 publications

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“…• Power Splitters and Combiners Loss: In the analog beamforming stage of SA and FH architectures, output signals of RF-chains need to be fed into phase shifter network for phase rotation. The Wilkinson power splitters are commonly used for such purpose [28], [29], [56]. Moreover, the fully-connected hybrid architecture uses same Wilkinson structure to combine multiple RF signals before power amplification.…”

Section: Rf Signal Distributionmentioning

confidence: 99%

“…The power model adopted in this work considers gain compensation amplifier design from [36], where each amplifier has up to 15dB gain with P Amp = 40mW power consumption. Note that active combining [28] is an alternative approach that combines RF signal in current mode using low-noise amplifiers. Although insertion loss can be avoided, there is power consumption in each combiner.…”

Section: Rf Signal Amplification Powermentioning

confidence: 99%

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Performance, Power, and Area Design Trade-Offs in Millimeter-Wave Transmitter Beamforming Architectures

Han

Ramesh

Gallagher

et al. 2019

IEEE Circuits Syst. Mag.

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Millimeter wave (mmW) communications is viewed as the key enabler of 5G cellular networks due to vast spectrum availability that could boost peak rate and capacity. Due to increased propagation loss in mmW band, transceivers with massive antenna array are required to meet link budget, but their power consumption and cost become limiting factors for commercial systems. Radio designs based on hybrid digital and analog array architectures and the usage of radio frequency (RF) signal processing via phase shifters have emerged as potential solutions to improve radio energy efficiency and deliver performances close to conventional digital antenna arrays. In this paper, we provide an overview of the state-of-the-art mmW massive antenna array designs and comparison among three array architectures, namely digital array, partially-connected hybrid array (sub-array), and fully-connected hybrid array. The comparison of performance, power, and area for these three architectures is performed for three representative 5G downlink use cases, which cover a range of pre-beamforming signal-to-noise-ratios (SNR) and multiplexing regimes. This is the first study to comprehensively model and quantitatively analyze all design aspects and criteria including: 1) optimal linear precoder, 2) impact of quantization error in digital-to-analog converter (DAC) and phase shifters, 3) RF signal distribution network, 4) power and area estimation based on state-of-theart mmW circuits including baseband digital precoding, digital signal distribution network, high-speed DACs, oscillators and mixers, phase shifters, RF signal distribution network, and power amplifiers. Our simulation results show that the fully-digital array is the most power and area efficient compared against optimal design for each architecture. Our analysis shows digital array benefits greatly from multi-user multiplexing. The analysis also reveals that sub-array is limited by reduced beamforming gain due to array partitioning, and system bottleneck of the fullyconnected hybrid architecture is the excessively complicated and power hungry RF signal distribution network.

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Section: Rf Signal Distributionmentioning

confidence: 99%

Section: Rf Signal Amplification Powermentioning

confidence: 99%

Performance, Power, and Area Design Trade-Offs in Millimeter-Wave Transmitter Beamforming Architectures

Han

Ramesh

Gallagher

et al. 2019

IEEE Circuits Syst. Mag.

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“…The proposed IF-RX receiver utilizes a cartesian combining architecture based on work in [7] for a direct conversion receiver and extended for a mmWave beamformer in [2]. In this paper, we convert down to a fixed IF between 2 to 4 GHz.…”

Section: Receiver Architecturementioning

confidence: 99%

“…Therefore, a scalable solution is preferred. Some earlier approaches for scalable phased arrays use heterodyne down-conversion from mmWave to IF and perform the beamforming at baseband (BB) to avoid the complexity and power penalty of mmWave quadrature LO-generation [2]. Local oscillator (LO) phase shifting for scalable arrays increase the buffering and LO routing at mmWave resulting in significant area and highpower consumption [3].…”

Section: Introductionmentioning

confidence: 99%

“…This work exploits the cartesian combining architecture in [2] for a scalable solution and proposes a modular subarray architecture combining signals of mmWave subarray antenna elements. Each antenna signal needs complex weighting, but this function is distributed between mmWave and IF as in [2], where only the variable gain is required at mmWave, while the phase shift of 90° to realize the cartesian combining is implemented in IF-RX exploiting quadrature mixing (see fig 1). Hence, only one mmWave LO per subarray is needed and no different phases.…”

Section: Introductionmentioning

confidence: 99%

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A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation

Akbar

Klumperink

Tervo

et al. 2019

ESSCIRC 2019 - IEEE 45th European Solid State Circuits Conference (ESSCIRC)

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Large-scale phased arrays need to combine weighted signals from multiple sub-arrays either in analog or in digital domain. Sub-arrays are preferably implemented modularly with integrated circuits placed next to the associated antennas. In order to enable flexible and scalable combining networks of several mmWave sub-arrays, this paper presents a wideband receiver module that provides the cartesian combining of beamforming weights for one sub-array at IF. Furthermore, it allows interference cancellation between subarrays or combining multiple sub-arrays. It also provides filtering before ADCs to support current and foreseeable 5G channel bandwidths up to 800MHz. The receiver is operating at 2-4GHz IF frequency range and has more than 400MHz baseband bandwidth, a noise-figure of 5.5dB,-6dBm 1dB compression point and +3dBm in-band IIP3. In addition, overthe-air measurements are performed, showing 26dB of interference cancellation between the sub-arrays. The prototype is implemented using 45nm CMOS PDSOI.

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Design of a 20–80 GHz Down-Conversion Mixer for 5G Wireless Communication with 22nm CMOS

Hurskainen

Akbar

Stadius

et al. 2020

2020 2nd 6G Wireless Summit (6G SUMMIT)

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This paper proposes a 20-80 GHz RF doublebalanced mixer utilizing a hybrid down-conversion scheme. To achieve the down-conversion over the entire range, two mixers are operating in double-down-conversion for fixed IF of 3 GHz and RF is divided into low-band 20-44GHz and high-band 44-80GHz. For the low-band, the first mixer is bypassed and the second mixer used for down-conversion. For the high-band, both mixers are used for down-conversion. This results in reducing the LO tuning range by over 50% as compared to a regular sliding IF scheme. The design is evaluated using simulations of the designed mixer in 22nm CMOS technology, achieving a conversion gain of over 5 dB throughout the RF bandwidth, a minimum IIP3 of 4.9 dBm and minimum noise figure of 5.1 dB.

show abstract

A 25-30 GHz 8-antenna 2-stream hybrid beamforming receiver for MIMO communication

Cited by 18 publications

References 3 publications

Performance, Power, and Area Design Trade-Offs in Millimeter-Wave Transmitter Beamforming Architectures

Performance, Power, and Area Design Trade-Offs in Millimeter-Wave Transmitter Beamforming Architectures

A Wideband IF Receiver Module for Flexibly Scalable mmWave Beamforming Combining and Interference Cancellation

Design of a 20–80 GHz Down-Conversion Mixer for 5G Wireless Communication with 22nm CMOS

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