0.13-$\mu$m CMOS Phase Shifters for X-, Ku-, and K-Band Phased Arrays

Koh, Kwang-Jin; Rebeiz, Gabriel M.

doi:10.1109/jssc.2007.907225

Cited by 364 publications

(128 citation statements)

References 27 publications

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“…They achieve a phase shift of 110° and 70°, respectively. It saves the number of inductors in order to minimize the circuit area [9]. As shown in Fig.…”

Section: Circuit Designmentioning

confidence: 99%

L/S-Band 0.18 æm CMOS 6-bit Digital Phase Design

Sheng¹,

Liu²

2016

Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)

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“…They achieve a phase shift of 110° and 70°, respectively. It saves the number of inductors in order to minimize the circuit area [9]. As shown in Fig.…”

Section: Circuit Designmentioning

confidence: 99%

L/S-Band 0.18 æm CMOS 6-bit Digital Phase Design

Sheng¹,

Liu²

2016

Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)

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“…Most proposed designs perform BF in analog (at either RF or IF) prior to the analog to digital (A/D) conversion [17]- [21]. A key limitation of these architectures is that they permit the UE to "look" in only one or a small number of directions at a time.…”

Section: A Contributionsmentioning

confidence: 99%

Directional initial access for millimeter wave cellular systems

Barati¹,

Hosseini²,

Mezzavilla³

et al. 2015

2015 49th Asilomar Conference on Signals, Systems and Computers

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Abstract-The millimeter wave (mmWave) bands have recently attracted considerable interest for next-generation cellular systems due to the massive spectrum at these frequencies. However, a key challenge in designing mmWave cellular systems is initial access -the procedure by which a mobile device establishes an initial link-layer connection to a base station cell. MmWave communication relies on highly directional transmissions and the initial access procedure must thus provide a mechanism by which initial transmission directions can be searched in a potentially large angular space. Design options are compared considering different scanning and signaling procedures to evaluate access delay and system overhead. The channel structure and multiple access issues are also considered. The results of our analysis demonstrate significant benefits of low-resolution fully digital architectures in comparison to single stream analog beamforming.

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“…입력으로부터 이렇게 분리된 차동 I/Q 신호는 DAC와 VGA를 이용하여 디지털적으로 신호의 크기를 조절할 수 있고, Vector sum을 통하여 신 호의 위상을 조절할 수 있다 [6] . Ⅴ. Ku-band 2-Antenna 4-Beam Chip [9] Ku-band에서 동작하고 두 개의 안테나로부터 4개의 독 립적인 beam을 동시에 수신할 수 있는 수신기를 SiGe BiCMOS 공정을 이용하여 개발하였다.…”

Section: 능동소자를 이용한 위상변위기는 신호를unclassified

Silicon Based Millimeter-Wave Phased Array System

Kang¹

2014

The Journal of Korean Institute of Electromagnetic Engineering

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This paper reviews the research on silicon based phased array system operating from microwave to millimeter wave frequencies. First, the design of phase shifter using CMOS technology is presented. The passive phase shifter is applied to the transmit/receive module from one to 16 channel in a single chip. The 35 GHz 4-element T/R module consumes less than 200 mW both transmit and receive modes. The architecture can extend to 16-channel operating at 44 GHz, thereby improving transmit power and linearity. The Ku-band 2-antenna 4-element receiver was developed using active phase shifter based on vector sum method. It is important to minimize coupling between beams because the chip contains four independent beams. The method of coupling is presented and verified.Key

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0.13-$\mu$m CMOS Phase Shifters for X-, Ku-, and K-Band Phased Arrays

Cited by 364 publications

References 27 publications

L/S-Band 0.18 æm CMOS 6-bit Digital Phase Design

L/S-Band 0.18 æm CMOS 6-bit Digital Phase Design

Directional initial access for millimeter wave cellular systems

Silicon Based Millimeter-Wave Phased Array System

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