Results 211 to 220 of about 49,907 (258)
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IEEE Transactions on Circuits and Systems I: Regular Papers, 2020
This paper presents a reconfigurable delta-sigma modulation (DSM) architecture for concurrent multi-band transmission. The reconfigurability in terms of carrier spacing and the number of simultaneous carrier transmission is useful for applications such as carrier aggregation in 5G. This paper uses $4^{th}$ order reconfigurable multi-band DSM (RMB-
Fadhel Ghannouchi +2 more
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This paper presents a reconfigurable delta-sigma modulation (DSM) architecture for concurrent multi-band transmission. The reconfigurability in terms of carrier spacing and the number of simultaneous carrier transmission is useful for applications such as carrier aggregation in 5G. This paper uses $4^{th}$ order reconfigurable multi-band DSM (RMB-
Fadhel Ghannouchi +2 more
exaly +2 more sources
Advanced multi-band modulation schemes for high speed data center optical interconnects
2016 25th Wireless and Optical Communication Conference (WOCC), 2016A 56 Gb/s multi-band CAP link with zero overhead signal recovery and enhanced timing jitter tolerance is demonstrated for intra- and inter-data center optical interconnects. It is the first examination of a 56-Gb/s Multi-band CAP signal transmission over 80 km SMF in terms of OSNR performance and chromatic dispersion tolerance.
J- Wei, Helmut Griesser
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Multi-band triangular frequency modulation signal generation based on gain-switched laser
Optics Communications, 2023Jilin Zheng, Tao Pu, Shilin Chen
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Multi-Band Transmission Using Reconfigurable Complex Multi-Band Delta Sigma Polar Modulator
IEEE Transactions on Circuits and Systems II: Express Briefs, 2022This paper presents a new reconfigurable complex multi-band delta sigma polar modulator (CMB-DSPM) architecture for multi-band transmission. In this paper, a 6th order band-pass delta sigma modulator (DSM) is designed and implemented for reconfigurable triple-band transmission.
Nishant Kumar 0007 +2 more
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Design of a multi-band FMCW radar module
2013 10th Workshop on Positioning, Navigation and Communication (WPNC), 2013This paper presents a multi-band frequency-modulated continuous wave (FMCW) radar module. The module can perform ranging in a wide frequency range, including the 2.4GHz and 5.8GHz ISM bands. It incorporates an application specific integrated circuit (ASIC) for processing the analogue signals and a field programmable gate array (FPGA) as digital signal ...
Niko Joram +4 more
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Performance Evaluation of Adaptive Modulation for Multi-Band OFDM
IEICE Transactions on Communications, 2006In this letter, we provide a performance evaluation of a Multi-Band Orthogonal Frequency Division Multiplexing (MB-OFDM) with adaptive modulation in a multipath fading channel. The MB-OFDM system in conjunction with adaptive modulation technique can be considered as one of the solutions for severely degraded channels such as those common in frequency ...
Chul-Seung Lee +2 more
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LTCC Front-end Modules for Multi-band Applications
2006 European Microwave Conference, 2006This paper presents LTCC front-end modules for multi-band applications. A dual-band module composed of a diplexer, a CDMA SAW duplexer, and a GPS SAW filter for CDMA/GPS applications and a tri-band module employing PIN diodes for CDMA/GPS/PCS applications are implemented based on LTCC substrates.
Dongsu Kim +4 more
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Photonic approach to flexible multi-band linearly frequency modulated microwave signals generation
Optics Letters, 2021In this paper, a flexible multi-band linearly frequency modulated (LFM) signal generator based on a dual-polarization binary phase-shift keying (DP-BPSK) modulator is proposed and demonstrated by experiment. Two dual-drive Mach–Zehnder modulators of the DP-BPSK modulator are driven by a local oscillator (LO) signal and an LFM signal,
Yuan, Men +3 more
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Generation and transmission of phase-stable coherent multi-band linear frequency modulated signals
Optics Letters, 2021We present a coherent multi-band linear frequency modulated (LFM) signal generation and transmission system based on dual optical frequency combs (OFCs). In the proposed scheme, the two OFCs are phase-locked to ensure high coherence of the generated multi-band LFM signals.
Baiyu Li +4 more
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Low-profile broadband Core-Isolator for multi-band module
2011 IEEE MTT-S International Microwave Symposium, 2011A novel broadband Core-Isolator for modules of multi-standard and multi-band mobile handsets has been developed successfully. A new circuit configuration for extending the isolation frequency band is proposed. The equations of the insertion loss and the isolation bandwidth of a two-port isolator with resonant elements are derived from equivalent ...
Takaya Wada +3 more
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