A 25–30 GHz Fully-Connected Hybrid Beamforming Receiver for MIMO Communication

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

doi:10.1109/jssc.2018.2789402

Cited by 106 publications

(54 citation statements)

References 23 publications

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“…In direct current combining technique, outputs of all elements combine directly at summing node as shown in [2]. Typically, inside CMOS phased array receiver the output of the array element is in voltage domain.…”

Section: B Current Summing Power Combinermentioning

confidence: 99%

“…Current combining needs low impedance node. The load at summing node could be resistive, simple resonator or transformer load for wide bandwidth [2]. In addition, transformer converts the signal from I to V. However, the summing node is sensitive to parasitics, when more than two stages are combined.…”

Section: B Current Summing Power Combinermentioning

confidence: 99%

“…In addition, transformer converts the signal from I to V. However, the summing node is sensitive to parasitics, when more than two stages are combined. In that case, it is better to combine two array elements at once [2]. This strategy leads to high power consumption and linearity of phased array receiver becomes a challenge in case of highpower input signal.…”

Section: B Current Summing Power Combinermentioning

confidence: 99%

“…Phased array systems are getting more attention of wireless communication industry, because of its inherent capabilities of beamforming and improvement in signal-tonoise ratio (SNR) of the radio link. Some mm-wave frequency bands have been proposed and finalized for 5G communication systems due to the availability of wide range of bandwidth (> 1GHz), at 24GHz, 28GHz and 38 GHz bands [1], [2]. Depending on the location of the phase shifter in the signal chain and/or combining node of multiple elements, different kinds of beamforming techniques are used in phased array systems, e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The transconductance stage also provides enough isolation between the combining ports. A wideband transformer load is utilized in [2] to add currents of two elements in a single stage of combining towards implementation of an 8 x 1 element phased array receiver system. However, the currentcombining based signal combiners in [1] to [3] are based on transconductance stages, and can bring additional limitations for non-linearity of the system.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

A Fully Differential Single-Stage Four-way mmWave Power Combiner for Phased Array 5G Systems

Shaheen

Rahkonen

Akbar

et al. 2019

2019 16th International Symposium on Wireless Communication Systems (ISWCS)

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This paper presents design of a fully differential four-way power combiner for receiver phased array applications. Depending on the system requirements several techniques for combining receiving channels from antenna inputs, for example, Wilkinson Power combiners, current summing power combiners and transformer-based power combiners are utilized. In this work, we show a design procedure of a four-way transformer based current summing power combiner with wideband response from 23 and 45 GHz frequencies. A single stage power combiner shows a simulated insertion loss of 1.5 to 3 dB, compared to Wilkinson power combiner's loss of 3.6 to 6 dB. Isolation between the channels is-14 dB. The proposed combiner and Wilkinson combiner consume area of 0.101 mm 2 and 1.034 mm 2 , respectively. Both combiners are designed using 45 nm CMOS SOI process technology.

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Section: B Current Summing Power Combinermentioning

confidence: 99%

Section: B Current Summing Power Combinermentioning

confidence: 99%

Section: B Current Summing Power Combinermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

A Fully Differential Single-Stage Four-way mmWave Power Combiner for Phased Array 5G Systems

Shaheen

Rahkonen

Akbar

et al. 2019

2019 16th International Symposium on Wireless Communication Systems (ISWCS)

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Silicon Millimeter‐Wave Phased Arrays

Lee,

Sadhu

2024

Encyclopedia of RF and Microwave Engineering

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Millimeter‐wave technology, with its large available bandwidth, promises many new wireless applications, from cellular communications to automotive radar for self‐driving vehicles. The silicon integration of mmWave and phased array technology has opened the door for large‐scale deployment of such systems. This chapter provides an overview tutorial of silicon‐based millimeter‐wave phased arrays and key building blocks.

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Millimeter‐Wave RF Designs

Wang

2019

Wiley 5G Ref

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In this article, the topic of millimeter wave radio frequency (RF) designs is introduced for the fifth‐generation communication system. State‐of‐the‐art studies in both academia and industry are reviewed, from four perspectives of architecture, radio frequency integrated circuit (RFIC) design, package, and measurement. The base station and user equipment architectures are illustrated in details, and the RFIC design, especially for the phased array, is emphasized with several important components, such as power amplifier and on‐chip antenna. Then, antenna‐in‐package technology is illustrated. Later, the over‐the‐air measurement is discussed to resolve the measurement issues. Finally, the current and future challenges in research and practice are pointed out.

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A 25–30 GHz Fully-Connected Hybrid Beamforming Receiver for MIMO Communication

Cited by 106 publications

References 23 publications

A Fully Differential Single-Stage Four-way mmWave Power Combiner for Phased Array 5G Systems

A Fully Differential Single-Stage Four-way mmWave Power Combiner for Phased Array 5G Systems

Silicon Millimeter‐Wave Phased Arrays

Millimeter‐Wave RF Designs

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