Results 21 to 30 of about 778,605 (331)
Ridge Gap Waveguide Based Liquid Crystal Phase Shifter
IEEE Access, 2020 In this paper, the gap waveguide technology is examined for packaging liquid crystal (LC) in tunable microwave devices. For this purpose, a line based passive phase shifter is designed and implemented in a ridge gap waveguide (RGW) topology and filled ...
Matthias Nickel +13 more
doaj +1 more source
Multifunctional photonic integrated circuit for diverse microwave signal generation, transmission and processing [PDF]
, 2019 Microwave photonics (MWP) studies the interaction between microwave and optical waves for the generation, transmission and processing of microwave signals (i.e., three key domains), taking advantages of broad bandwidth and low loss offered by modern ...
Cao, Zizheng +11 more
core +2 more sources
WDM–TDM NG-PON Power Budget Extension by Utilizing SOA in the Remote Node
IEEE Photonics Journal, 2014 Today, even in access networks, data traffic is enormously increasing, a trend that causes existing passive optical network (PON) infrastructures to become bottlenecks in a tele- and data-communication infrastructure, which is aimed to be both broadband ...
A. Emsia +5 more
doaj +1 more source
Wideband image-reject RF channelization based on soliton microcombs (invited paper)
APL Photonics, 2023 Wideband radio frequency (RF) channelization is essential for the reception and detection of cross-band RF signals in various applications, including communications, radar, and spectrum sensing. However, digital channelizers are inefficient at performing
Jiewen Ding +7 more
doaj +1 more source
Microwave Liquid Crystal Technology
Crystals, 2018 Tunable Liquid Crystal (LC)-based microwave components are of increasing interest in academia and industry. Based on these components, numerous applications can be targeted such as tunable microwave filters and beam-steering antenna systems.
Holger Maune +5 more
doaj +1 more source
RF and Microwave Fractional Differentiator Based on Photonics [PDF]
IEEE Transactions on Circuits and Systems - II - Express Briefs, 2020 We report a photonic radio frequency (RF) fractional differentiator based on an integrated Kerr micro-comb source. The micro-comb source has a free spectral range (FSR) of 49 GHz, generating a large number of comb lines that serve as a high-performance ...
M. Tan +10 more
semanticscholar +1 more source
Reference frequencies comb generation for microwave photonics ADC with signal spectral-interval estimation [PDF]
ITM Web of Conferences, 2019 Formation of a reference frequency comb in a circuit comprising a highly stable continuous laser and an amplitude Mach- Zehnder modulator with two independent RF inputs working with large modulation index for use in a high-speed microwave photonics ADC ...
Kulagin Victor +4 more
doaj +1 more source
Passive Radar Imaging of Moving Targets Using WiFi Signals
Leida xuebao, 2015 In recent years, the wireless local networks are constructed rapidly and their coverage greatly increase. The passive radar imaging of moving targets using WiFi signals is studied in this paper, which may lead to wider applications of passive radars ...
Zhuang Xu-sheng +3 more
doaj +1 more source
Biology, 2021 A multiobjective optimization method for a dual-mode microwave applicator is proposed. Dual-modality means that microwaves are used apart from the treatment, and also for the monitoring of the microwave ablation intervention. (1) The use of computational
Carolin Hessinger +4 more
doaj +1 more source
Recent Trends and Advances of Silicon-Based Integrated Microwave Photonics
Photonics, 2019 Multitude applications of photonic devices and technologies for the generation and manipulation of arbitrary and random microwave waveforms, at unprecedented processing speeds, have been proposed in the literature over the past three decades.
R. Maram +3 more
semanticscholar +1 more source