A 28-GHz CMOS Phased-Array Transceiver Based on LO Phase-Shifting Architecture With Gain Invariant Phase Tuning for 5G New Radio

Pang, Jian; Wu, Rui; Wang, Yun; Dome, Masato; Kato, Hisashi; Huang, Hongye; Narayanan, Aravind Tharayil; Liu, Hanli; Liu, Bangan; Nakamura, Takeshi; Fujimura, Takuya; Kawabuchi, Masaru; Kubozoe, Ryo; Miura, Tsuyoshi; Matsumoto, Daisuke; Li, Zheng; Oshima, Naoki; Motoi, Keiichi; Hori, Shingo; Kunihiro, Kazuaki; Kaneko, Tomoya; Shirane, Atsushi; Okada, Kei

doi:10.1109/jssc.2019.2899734

Cited by 166 publications

(61 citation statements)

References 28 publications

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“…The peak PAE of the developed PA is partly limited by the adopted class-A operation mode. 1 Measured result at 30 GHz, 2 Calculated from measured results, 3 Pads are included.…”

Section: Measurements and Resultsmentioning

confidence: 99%

“…The fifth generation (5G) communication technology provides a great potential for numerous emerging applications, such as broadband data traffic, augmented reality (AR), internet of things (IOT), internet of vehicles (IOV), etc. Because of the wide available bandwidth, the mm-Wave technique will play a key role in these emerging demands to achieve multi-gigabit-per-second data rates [1][2][3]. Figure 1a shows the spectra proposed by different regions in the world for 5G service, and frequency bands allocated around 28 GHz are one of the most promising candidates [4,5].…”

Section: Introductionmentioning

confidence: 99%

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A 28 GHz Linear Power Amplifier Based on CPW Matching Networks with Series-Connected DC-Blocking Capacitors

Xia

Huang

et al. 2020

Electronics

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In this paper, the influence of the DC-blocking capacitors leveraged in coplanar waveguide (CPW) matching networks is studied. CPW matching networks with series-connected DC-blocking capacitors are less sensitive to capacitance and are adopted in a 28 GHz power amplifier (PA). The PA targeting fifth-generation (5G) phased array is developed in 90 nm silicon-on-insulator complementary-metal-oxide-semiconductor (SOI CMOS) technology. A stacked field-effect-transistor (FET) architecture is elected in the output stage to boost the output power and reduce the die area. The PA with a core area of 0.31 mm2 demonstrates a maximum small signal gain of 13.7 dB and a −3 dB bandwidth of 6.3 GHz (22.9–29.2 GHz). The PA achieves a measured saturated output power (Psat) of 14.4 dBm and a peak power added efficiency (PAE) of 25% for continuous wave signals. At 24/25.6/28 GHz, the PA achieves +7.87/+9.16/+10.7 dBm measured output power and 6.21%/8.11%/10.17% PAE at −25 dBc error vector magnitude(EVM) for a 250 MHz-wide 64-quadrature amplitude modulation (64-QAM). The developed linear PA provides a great potential for low-cost 5G phased array transceivers.

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“…The peak PAE of the developed PA is partly limited by the adopted class-A operation mode. 1 Measured result at 30 GHz, 2 Calculated from measured results, 3 Pads are included.…”

Section: Measurements and Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A 28 GHz Linear Power Amplifier Based on CPW Matching Networks with Series-Connected DC-Blocking Capacitors

Xia

Huang

et al. 2020

Electronics

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“…Such issues become even more challenging as the operating frequency of the circuit increases, and the number of the antennas scales up. Hence, most of the implementations of hybrid beamformers are based on subarray structures, such as in [12], [21]- [23] and references therein.…”

Section: Primer: Hybrid Beamforming and State-of-the-artmentioning

confidence: 99%

“…However, these systems are much more expensive and complex to build. Hence, most of the existing hybrid beamforming testbeds and products are based on the subconnected approaches [9], [12], [21]- [23].…”

Section: Introductionmentioning

confidence: 99%

Developing the First mmWave Fully-Connected Hybrid Beamformer With a Large Antenna Array

et al. 2020

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Millimeter wave (mmWave) systems with effective beamforming capability play a key role in fulfilling the high data-rate demands of current and future wireless technologies. Hybrid analog-todigital beamformers have been identified as a cost-effective and energy-efficient solution towards deploying such systems. Most of the existing hybrid beamforming architectures rely on a subconnected phase shifter network with a large number of antennas. Such approaches, however, cannot fully exploit the advantages of large arrays. On the other hand, the current fully-connected beamformers accommodate only a small number of antennas, which substantially limits their beamforming capabilities. In this paper, we present a mmWave hybrid beamformer testbed with a fully-connected network of phase shifters and adjustable attenuators and a large number of antenna elements. To our knowledge, this is the first platform that connects two RF inputs from the baseband to a 16× 8 antenna array, and it operates at 26 GHz with a 2 GHz bandwidth. It provides a wide scanning range of 60 • , and the flexibility to control both the phase and the amplitude of the signals between each of the RF chains and antennas. This beamforming platform can be used in both short and long-range communications with linear equivalent isotropically radiated power (EIRP) variation between 10 dBm and 60 dBm. In this paper, we present the design, calibration procedures and evaluations of such a complex system as well as discussions on the critical factors to consider for their practical implementation. INDEX TERMS Millimeter wave, Multiple-input multiple-output, fully-connected hybrid beamforming, phased array antenna, testbed.

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“…However, to realize the 5G millimeter-wave DP-MIMO systems, which require numerous transceiver paths, the conventional phasedarray solutions are still expensive regarding the total die area. [11] and [12] based on the LO phase shifting architecture realize gain-invariant and high-resolution phase shifting. However, additional power and area are consumed for the distributed LO.…”

Section: Introductionmentioning

confidence: 99%

A 28-GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR

Pang

Zheng

Kubozoe

et al. 2020

IEEE J. Solid-State Circuits

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115

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This article presents a low-cost and area-efficient 28-GHz CMOS phased-array beamformer chip for 5G millimeter-wave dual-polarized multiple-in-multiple-out (MIMO) (DP-MIMO) systems. A neutralized bi-directional technique is introduced in this work to reduce the chip area significantly. With the proposed technique, completely the same circuit chain is shared between the transmitter and receiver. To further minimize the area, an active bi-directional vector-summing phase shifter is also introduced. Area-efficient and high-resolution active phase shifting could be realized in both TX and RX modes. In measurement, the achieved saturated output power for the TX-mode beamformer is 15.1 dBm. The RX-mode noise figure is 4.2 dB at 28 GHz. To evaluate the over-the-air performance, 16 H+16 V sub-array modules are implemented in this work. Each of the sub-array modules consists of four 4 H+4 V chips. Two subarray modules in this work are capable of scanning the beam from −50 • to +50 •. A saturated EIRP of 45.6 dBm is realized by 32 TX-mode beamformers. Within 1-m distance, a maximum SC-mode data rate of 15 Gb/s and the 5G new radio downlink packets transmission in 256-QAM could be supported by the module. A 2 × 2 DP-MIMO communication is also demonstrated with two 5G new radio 64-QAM uplink streams. Thanks to

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A 28-GHz CMOS Phased-Array Transceiver Based on LO Phase-Shifting Architecture With Gain Invariant Phase Tuning for 5G New Radio

Cited by 166 publications

References 28 publications

A 28 GHz Linear Power Amplifier Based on CPW Matching Networks with Series-Connected DC-Blocking Capacitors

A 28 GHz Linear Power Amplifier Based on CPW Matching Networks with Series-Connected DC-Blocking Capacitors

Developing the First mmWave Fully-Connected Hybrid Beamformer With a Large Antenna Array

A 28-GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR

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