Zobrazeno 1 - 10
of 79
pro vyhledávání: '"Ali M. Darwish"'
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 70:3987-4001
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4cd0083a23268398931dc195d1b23374
https://doi.org/10.1109/tmtt.2022.3186340
https://doi.org/10.1109/tmtt.2022.3186340
Publikováno v:
IEEE Microwave and Wireless Components Letters. 32:776-779
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a8376845c72e74205990b80c2958f67
https://doi.org/10.1109/lmwc.2022.3162992
https://doi.org/10.1109/lmwc.2022.3162992
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 68:3942-3957
This article proposes a novel digital predistortion (DPD) scheme for mitigating the effects of nonlinear distortion caused by frequency multipliers when driven with wideband vector modulated signals. An effective pruning strategy is applied to limit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3266652221a2abb53fd076e71caa8091
https://doi.org/10.1109/tmtt.2020.2992914
https://doi.org/10.1109/tmtt.2020.2992914
Publikováno v:
2020 IEEE/MTT-S International Microwave Symposium (IMS).
In this paper, a frequency-multiplier-based radio frequency (RF) beamforming architecture suitable for the generation/transmission of high-frequency vector-modulated signals is proposed. The proposed architecture incorporates a single-input-single-ou
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::03fa591600519beea7a2dd1ebd5c90d1
https://doi.org/10.1109/ims30576.2020.9223961
https://doi.org/10.1109/ims30576.2020.9223961
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 66:3433-3442
This paper expounds on the mitigation of the hardware nonidealities exhibited by millimeter-wave (mm-wave) transmitters (TXs) generating ultra-wideband signals. In particular, it tackles the IQ imbalance and nonlinear distortions attributed to the IQ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd726c6e8325938a6017d5a6b97028ef
https://doi.org/10.1109/tmtt.2018.2817224
https://doi.org/10.1109/tmtt.2018.2817224
Publikováno v:
2018 15th European Radar Conference (EuRAD).
In this paper we propose a compensation technique for millimeter wave (mm-wave) frequency doubler based outphasing system adopted to generate wideband vector modulated signals. The compensation technique utilizes multi-tone test signals to detect the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::711630c47c61123747f864526b4c942f
https://doi.org/10.23919/eurad.2018.8546541
https://doi.org/10.23919/eurad.2018.8546541
Publikováno v:
2018 IEEE/MTT-S International Microwave Symposium - IMS.
This paper proposes a digital predistortion (DPD) scheme devised to improve the quality of wideband digitally modulated signals generated using frequency doubler based high frequency sources. The proposed DPD consists of two modules, which are config
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6dc8f95a2460b7f6a3e5cec3f40ff377
https://doi.org/10.1109/mwsym.2018.8439366
https://doi.org/10.1109/mwsym.2018.8439366
Autor:
Khamsouk Kingkeo, H. Alfred Hung, Edward Viveiros, John Penn, Y. Ethan Wang, Mathew Biedka, Ali M. Darwish
Publikováno v:
2018 IEEE/MTT-S International Microwave Symposium - IMS.
This paper presents a microwave implementation of the novel sequentially-switched delay line (SSDL) for simultaneous transmit and receive (STAR) applications. The circuit is nonreciprocal and non-magnetic and is implemented in a high frequency GaN MM
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bba335ca6c8744b10c908dbbc9eefb60
https://doi.org/10.1109/mwsym.2018.8439451
https://doi.org/10.1109/mwsym.2018.8439451
Publikováno v:
International Symposium on Microelectronics. 2015:000776-000780
Packaging mm-wave and THz circuits, poses many challenges due to the sensitivity of the circuits to any mismatch at the input or output. Traditional interfaces for combining circuits produce significant losses, and standing waves. This paper presents
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ce3e0151ad834f75e73dfdf807a09df
https://doi.org/10.4071/isom-2015-thp13
https://doi.org/10.4071/isom-2015-thp13
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:2253-2263
A novel 1-to- $N$ broadband “ $i\pi$ -wave” power divider/combiner with reflection cancellation is presented and demonstrated. The new $i\pi$ -wave structure provides reflection cancellation and output port isolation with 1-to- $N$ (arbitrary $N$
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::364d619d500d0631dae5a28ef3cbaeb3
https://doi.org/10.1109/tmtt.2015.2431690
https://doi.org/10.1109/tmtt.2015.2431690