Article
Engineering, Electrical & Electronic
Dongwon You, Xi Fu, Hans Herdian, Xiaolin Wang, Yasuto Narukiyo, Ashbir Aviat Fadila, Hojun Lee, Michihiro Ide, Sena Kato, Zheng Li, Yun Wang, Daisuke Awaji, Jian Pang, Hiraku Sakamoto, Kenichi Okada, Atsushi Shirane
Summary: A Ka-band 64-element deployable active phased-array transmitter (TX) on a hetero segment liquid crystal polymer (LCP) substrate for small satellites is proposed. The phased-array TX achieves a large array size implementation and a small form factor with integrated six-layer and two-layer LCP substrates. The proposed TX supports 256-APSK DVB-S2X and achieves 46.7 dBm EIRP with superior EVM performance.
IEEE MICROWAVE AND WIRELESS TECHNOLOGY LETTERS
(2023)
Article
Engineering, Electrical & Electronic
Oguz Kazan, Zhaoxin Hu, Linjie Li, Abdulrahman Alhamed, Gabriel M. Rebeiz
Summary: This article presents an 8-channel transmit phased-array RFIC for SATCOM applications in C-, X-, Ku-, and Ka-bands. The RFIC achieves wideband operation and high performance, as demonstrated through experimental verification.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2022)
Article
Computer Science, Information Systems
Dongwon You, Xiaolin Wang, Hans Herdian, Xi Fu, Hojun Lee, Michihiro Ide, Carrel Gomez, Zheng Li, Jill Mayeda, Daisuke Awaji, Jian Pang, Hiraku Sakamoto, Kenichi Okada, Atsushi Shirane
Summary: This article introduces a lightweight and deployable phased array antenna for small-satellite constellation systems, which aims to reduce cost and increase link distance. The proposed Ka-band deployable active phased-array TX on a 4-layer liquid crystal polymer (LCP) board breaks the trade-off between high antenna aperture size and small form factor in phased arrays. The TX can steer the beam from -50. to 50. and drive a 32-APSK DVBS2 signal with a -28.7 dB EVM, demonstrating high performance. Additionally, the TX achieved the lightest and thinnest phased array with 0.96 kg/m(2) areal mass and 0.9 mm thickness. This groundbreaking research paves the way for affordable and user-centric satellite communication (SATCOM) in low-earth orbit (LEO).
Article
Engineering, Electrical & Electronic
Abdulrahman Alhamed, Gokhan Gultepe, Gabriel M. Rebeiz
Summary: This article introduces a millimeter-wave multi-band transmit phased-array design supporting 5G NR FR2 bands, with eight-element phased-array module achieving high data rate and power performance when tested.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2022)
Article
Engineering, Electrical & Electronic
Jinseok Park, Gwanghyeon Jeong, Songcheol Hong
Summary: The Ka-band variable-gain phase shifter uses a multi-vector summation method to represent phase and amplitude, achieving wide gain-control dynamic range and orthogonal phase and gain control function. It demonstrates good performance in the 30 to 32.5 GHz range.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS
(2021)
Article
Engineering, Electrical & Electronic
Abdulrahman Alhamed, Gokhan Gultepe, Gabriel M. Rebeiz
Summary: This article presents a multiband phased array designed for multistandard 5G communications, with high bandwidth and performance.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)
Article
Engineering, Electrical & Electronic
Siwei Li, Zhe Zhang, Bhaskara Rupakula, Gabriel M. Rebeiz
Summary: This article presents a 140-GHz wafer-scale phased-array receiver with low system noise figure and high data rate, representing the first achievement in current technology.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2022)
Article
Engineering, Electrical & Electronic
Huanbo Li, Jixin Chen, Debin Hou, Zekun Li, Rui Zhou, Zhe Chen, Pinpin Yan, Wei Hong
Summary: This article presents a pair of W-band phased-array transmitter and receiver chipsets for high data-rate wireless communication. The chips integrate four compact front-end channels and enable array scaling. They leverage advanced phase shifting and noise reduction techniques, as well as a novel miniature power combiner. The chips also undergo system-level calibration and wireless transmission tests, demonstrating their reliability and high-speed data transfer capability.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2022)
Article
Engineering, Electrical & Electronic
Yongran Yi, Dixian Zhao, Jiajun Zhang, Peng Gu, Yuan Chai, Huiqi Liu, Xiaohu You
Summary: This article presents a four-element phased-array transceiver front-end for mm-Wave 5G NR, detailing the effects of AM-PM and AM-AM distortions on EVM. It describes a linear wideband class-AB PA that mitigates distortions without degrading performance, and proposes a matching network embedded T/R switch for TDD support. The TRX element achieves phase and gain controls with a vector-modulated phase shifter and attenuator.
IEEE JOURNAL OF SOLID-STATE CIRCUITS
(2022)
Article
Engineering, Electrical & Electronic
Kevin Kai Wei Low, Samet Zihir, Tumay Kanar, Gabriel M. Rebeiz
Summary: This article presents a wideband scalable Ka-band SATCOM transmit phased array with reconfigurable polarization and embedded RF drivers. The phased array demonstrates excellent performance, making it suitable for compact and high-efficiency SATCOM transmitters. Additionally, it achieves the highest level of integration at millimeter waves and the highest measured EIRP among SATCOM phased arrays.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2022)
Article
Engineering, Electrical & Electronic
Abdulrahman Alhamed, Oguz Kazan, Gokhan Gultepe, Gabriel M. Rebeiz
Summary: This work presents a multiband/multistandard phased-array architecture for the 5G NR FR2 bands, achieving wide bandwidth and multistandard system construction with high gain and low noise figure.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2022)
Article
Computer Science, Information Systems
Marko E. Leinonen, Nuutti Tervo, Markku Jokinen, Olli Kursu, Aarno Parssinen
Summary: In this study, probability density functions (PDFs) of over-the-air (OTA) transmission (TX) powers for individual transmitter (Tx) paths and total TX power of the 5G mmW array were derived using Monte Carlo simulations based on component tolerances. The study found that the distribution of TX power for individual paths in the array is log-normally distributed on a linear scale. Additionally, it was shown that the link budget maps to a link range in a non-linear way, leading to a log-normally distributed link range.
Proceedings Paper
Engineering, Electrical & Electronic
Ju-Ik Oh, Hyunyoung Cho, Jeong-Wook Kim, Ji-Hoon Lee, Jong-Won Yu
Summary: This paper presents a design of a Ka-band 4x4 phased array antenna with embedded beamforming ICs in the printed circuit board (PCB) to reduce loss during connection, and the performance of the antenna is verified through measurement.
2022 14TH GLOBAL SYMPOSIUM ON MILLIMETER-WAVES & TERAHERTZ (GSMM 2022)
(2022)
Article
Engineering, Electrical & Electronic
Umut Celik, Patrick Reynaert
Summary: This article presents a wideband ultralinear fully integrated power amplifier in 22-nm fully-depleted siliconon-insulator technology for phased array-based E-band backhaul networks. A novel amplitude to phase modulation compensation technique called NP matrix is introduced. Simulation results show the proposed amplifier outperforms traditional N-type common-source PA in various aspects.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2021)
Article
Engineering, Electrical & Electronic
Kyung Pil Jung, Tae Hwan Jang, Joon Hyung Kim, Chul Soon Park
Summary: This study presents a 60-GHz four-element CMOS phased-array transmitter with high performance in a 65-nm process. The unit Tx element, consisting of a frequency-selective vector-sum phase shifter, variable gain amplifier, and power amplifier, achieves excellent performance within a 3-dB bandwidth of 56-70 GHz. The transmitter also successfully demonstrates wireless transmission of high-speed modulated signals.
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
(2023)