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Advanced multi-band modulation technology for underwater communication systems
2015In recent years, underwater communication (UWC) systems have been attractive in the development of civilian and military applications. However, there are many challenging issues surrounding such communication systems due to severe channel conditions such as ambient noise, frequency selectivity, multi-path with significant tap delays and Doppler shifts.
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Stacked FET structure for multi-band mobile terminal power amplifier module
2013 IEEE MTT-S International Microwave Symposium Digest (MTT), 2013A multi-band PHEMT 5 × 7 mm2 PA module for mobile applications is described based upon a stacked FET structure. The PA has 28.5 dBm linear output power and over 40 % PAE with -38 dBc ACLR for a 3.2 V supply voltage, covering a wide frequency range of 698-915 MHz, 1430-1450 MHz and 1710-1980 MHz.
Hideshi Motoyama +4 more
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A multi-band, dual-antenna and antenna interface module system for mobile phones
2007 International workshop on Antenna Technology: Small and Smart Antennas Metamaterials and Applications, 2007This paper presents details of a self-diplexing dual antenna system and associated antenna interface module. The manufactured demonstrator operates efficiently in 4 GSM bands and 3 UTRA bands with antennas that are just 6 mm high. It is shown that the VSWR can be maintained below approximately 4:1 in all modes no matter how the phone containing the ...
K. R. Boyle +7 more
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A Multi-band GNSS Signal Sampler Module with Open-Source Software Receiver
ION GNSS+, The International Technical Meeting of the Satellite Division of The Institute of Navigation, 2016Multi-constellation and multi-frequency GNSS signals are a reality now and their benefits have been the topic of discussion in the recent past amongst the GNSS user segment at large. However, to conduct an experiment involving multi-constellation and multi-frequency signals without an expensive hardware or to quickly examine the result of an ...
Nagaraj C. Shivaramaiah +2 more
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Effect of Adaptive Modulation and Error Correction on Multi-Band OFDM-MIMO System
2006We have devised a new system for forming the antenna beam in a com- bined OFDM and MIMO scheme. In this scheme, the OFDM signal is divided among multiple bands, and the divided signals are transmit- ted on an appropriate beam of each sub-band. In this paper, We have described the system configuration of the proposed multi-band OFDM- MIMO scheme for use
M. Ohkawa, R. Kohno
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Antennas for multi-band RF front-end modules
2004Electrical Engineering, Mathematics and Computer ...
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Modulation of Noncoding RNAs (ncRNAs) and Their Potential Role as Therapeutics
Medical Epigenetics, 2021Luciano Pirola +2 more
exaly
IEEE Transactions on Circuits and Systems I: Regular Papers, 2022
Yuchen Cao 0003, Haifeng Lyu, Kenle Chen
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Yuchen Cao 0003, Haifeng Lyu, Kenle Chen
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Multi-band 200 GBd Transmission Using a PLZT Modulator
2025 IEEE Silicon Photonics Conference (SiPhotonics)Shiyoshi Yokoyama +4 more
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Multi-band geometric phase metasurface with independent phase modulation
2024 IEEE MTT-S International Wireless Symposium (IWS)Faizan Faraz, Weiren Zhu
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