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Your search keyword '"Fadila, Ashbir Aviat"' showing total 7 results
Start Over Author "Fadila, Ashbir Aviat" Journal ieee journal of solid-state circuits
7 results on '"Fadila, Ashbir Aviat"'

1. A Time-Mode-Modulation Digital Quadrature Power Amplifier Based on 1-bit Delta–Sigma Modulator and Hybrid FIR Filter

Author

Zhang, Yuncheng, primary, Sun, Zheng, additional, Liu, Bangan, additional, Qiu, Junjun, additional, Xu, Dingxin, additional, Zhang, Yi, additional, Fu, Xi, additional, You, Dongwon, additional, Huang, Hongye, additional, Madany, Waleed, additional, Fadila, Ashbir Aviat, additional, Liu, Zezheng, additional, Wang, Wenqian, additional, Xiong, Yuang, additional, Shirane, Atsushi, additional, and Okada, Kenichi, additional

Published
2024
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2. A Ka-Band SATCOM Transceiver in 65-nm CMOS With High-Linearity TX and Dual-Channel Wide-Dynamic-Range RX for Terrestrial Terminal

Author

Wang, Yun, YOU, Dongwon, You, Dongwon, Fu, Xi, Nakamura, Takeshi, Fadila, Ashbir Aviat, Kawaguchi, Atsuhiro, Qiu, Junjun, Pang, Jian, Jian, Pang, Liu, Bangan, Zhang, Yuncheng, Zhang, Haosheng, Wu, Rui, Shirane, Atsushi, and Okada, Kenichi

Subjects
Physics, CMOS, business.industry, Amplifier, Electrical engineering, Baseband, Adjacent-channel interference, Electrical and Electronic Engineering, Wideband, Transceiver, business, Multiplexing, Frequency-division multiplexing
Abstract

In this article, a Ka-band satellite communication (SATCOM) transceiver is first presented using a standard CMOS technology. The proposed Ka-band SATCOM transceiver consists of a high-linearity transmitter (TX) and dual-channel receiver (RX); both TX and RX are based on direct-conversion architecture. By implementing the dual-channel RX, multiple multiplexing modes, including polarization multiplexing and frequency multiplexing, can be enabled depending on the application. The RX variable gain is distributed in both RF blocks and baseband blocks to achieve a wide input dynamic range. The LNA employs a dual-coupling transformer for a low-noise figure (NF) and wideband input matching; moreover, it enhances the amplifier unilateralization characteristic to mitigate the loading effect from switched attenuators. An adjacent channel interference (ACI) cancellation scheme is proposed to further enhance the RX linearity in the frequency multiplexing mode. In the TX, single-turn high-quality-factor transformer is employed to realize matching network and four-way power combining. A prototype of the SATCOM transceiver is fabricated in a standard 65-nm CMOS process. Under 1.05-V supply voltage, the TX achieves a ${P{_{SAT}}}$ of 20.5 dBm and an average output power of 12 dBm with 2% error vector magnitude (EVM) and a 37.6-dB ACPR. The dual-channel RX achieves an NF of 5.4 dB, an IIP3 of -30 dBm on the high-gain mode, the ACI cancellation is measured of 7.9 dB with a 100-MHz signal bandwidth.

Published
2022
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4. A Bi-Directional 300-GHz-Band Phased-Array Transceiver in 65-nm CMOS With Outphasing Transmitting Mode and LO Emission Cancellation

Author

Abdo, Ibrahim, primary, da Gomez, Carrel, additional, Wang, Chun, additional, Hatano, Kota, additional, Li, Qi, additional, Liu, Chenxin, additional, Yanagisawa, Kiyoshi, additional, Fadila, Ashbir Aviat, additional, Fujimura, Takuya, additional, Miura, Tsuyoshi, additional, Tokgoz, Korkut Kaan, additional, Pang, Jian, additional, Hamada, Hiroshi, additional, Nosaka, Hideyuki, additional, Shirane, Atsushi, additional, and Okada, Kenichi, additional

Published
2022
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6. A CMOS Dual-Polarized Phased-Array Beamformer Utilizing Cross-Polarization Leakage Cancellation for 5G MIMO Systems

Author

Pang, Jian, primary, Li, Zheng, additional, Luo, Xueting, additional, Alvin, Joshua, additional, Saengchan, Rattanan, additional, Fadila, Ashbir Aviat, additional, Yanagisawa, Kiyoshi, additional, Zhang, Yi, additional, Chen, Zixin, additional, Huang, Zhongliang, additional, Gu, Xiaofan, additional, Wu, Rui, additional, Wang, Yun, additional, You, Dongwon, additional, Liu, Bangan, additional, Sun, Zheng, additional, Zhang, Yuncheng, additional, Huang, Hongye, additional, Oshima, Naoki, additional, Motoi, Keiichi, additional, Hori, Shinichi, additional, Kunihiro, Kazuaki, additional, Kaneko, Tomoya, additional, Shirane, Atsushi, additional, and Okada, Kenichi, additional

Published
2021
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7. A 28-GHz CMOS Phased-Array Beamformer Utilizing Neutralized Bi-Directional Technique Supporting Dual-Polarized MIMO for 5G NR

Author

Pang, Jian, primary, Li, Zheng, additional, Kubozoe, Ryo, additional, Luo, Xueting, additional, Wu, Rui, additional, Wang, Yun, additional, You, Dongwon, additional, Fadila, Ashbir Aviat, additional, Saengchan, Rattanan, additional, Nakamura, Takeshi, additional, Alvin, Joshua, additional, Matsumoto, Daiki, additional, Liu, Bangan, additional, Narayanan, Aravind Tharayil, additional, Qiu, Junjun, additional, Liu, Hanli, additional, Sun, Zheng, additional, Huang, Hongye, additional, Tokgoz, Korkut Kaan, additional, Motoi, Keiichi, additional, Oshima, Naoki, additional, Hori, Shinichi, additional, Kunihiro, Kazuaki, additional, Kaneko, Tomoya, additional, Shirane, Atsushi, additional, and Okada, Kenichi, additional

Published
2020
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