Results 41 to 50 of about 853,308 (389)
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
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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
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Microwave Photonic Radars [PDF]
Journal of Lightwave Technology, 2020 As the only method for all-weather, all-time and long-distance target detection and recognition, radar has been intensively studied since it was invented, and is considered as an essential sensor for future intelligent society. In the past few decades, great efforts were devoted to improving radar's functionality, precision, and response time, of which
Shilong Pan, Yamei Zhang
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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
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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
International Journal of Scientific Research And Education, 2016 Microwave-photonic filters (MPF) can overcome the limitations of electrically implemented counterparts. MPF can have a very broad bandwidth, they are tunable and even the filter shape can be changed by programming. Here we review our recent results in the implementation of MPF.
Navjit kaur, Dr.Anu Sheetal
openaire +4 more sources
Integrated microwave acousto-optic frequency shifter on thin-film lithium niobate [PDF]
, 2020 Electrically driven acousto-optic devices that provide beam deflection and optical frequency shifting have broad applications from pulse synthesis to heterodyne detection.
Crowe, Devon +7 more
core +2 more sources
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
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Programmable photonics : an opportunity for an accessible large-volume PIC ecosystem [PDF]
, 2020 We look at the opportunities presented by the new concepts of generic programmable photonic integrated circuits (PIC) to deploy photonics on a larger scale.
Bogaerts, Wim
core +1 more source
Photonics-Based Microwave Image-Reject Mixer
Photonics, 2018 Recent developments in photonics-based microwave image-reject mixers (IRMs) are reviewed with an emphasis on the pre-filtering method, which applies an optical or electrical filter to remove the undesired image, and the phase cancellation method, which ...
Dan Zhu, Shilong Pan
doaj +1 more source