Results 21 to 30 of about 185,082 (262)
Modified U Slot Patch Antenna with Large Frequency Ratio for Vehicle-to-Vehicle Communication
Sensors, 2023 This paper presents a single-fed, single-layer, dual-band antenna with a large frequency ratio of 4.74:1 for vehicle-to-vehicle communication. The antenna consists of a 28 GHz inset-fed rectangular patch embedded into a 5.9 GHz patch antenna for dual ...
Sandhiya Reddy Govindarajulu +4 more
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Design and analysis of defected ground structure transformer for dual-band antenna
The Journal of Engineering, 2014 This study presents a novel dual-band antenna design methodology utilising a dual-frequency impedance transformer with defected ground structure (DGS).
Wai-Wa Choi +4 more
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A Dual-Band Dual-Polarized Omnidirectional Antenna
Frontiers in Physics, 2020 A dual-band dual-polarized omnidirectional antenna is investigated. The two bands are generated by a lower circular patch and an upper circular patch, respectively.
Hui Gu, Lei Ge, Jihong Zhang
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Key Technology of Mixed Matching Circuit for Miniaturizing Dual-Band Antenna
IEEE Access, 2022 A mixed matching circuit for miniaturizing dual-band antenna is introduced and verified in this study. Two L-shaped matching circuit for miniaturization are cascaded to interpret the theory of operation in accordance with the dual-band allocations on the
Daoheng Zhu +3 more
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Independently Tunable Concurrent Dual-Band VCO Using Square Open-Loop Resonator
IEEE Access, 2018 A concurrent dual-band voltage-controlled oscillator (VCO) with independently tunable dual oscillation frequencies is proposed. A shared square open-loop dual-mode resonator and two varactor diodes are the basic units offering flexible tuning for the ...
Boqiong Li +3 more
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Design of Integrated Duplexing and Multi-Band Filtering Slot Antennas
IEEE Access, 2020 In this paper, a duplexing antenna and two multi-band filtering antennas using resonator loaded slot are presented. The loaded slot can be flexibly designed as a dual-band or a tri-band antenna by changing the number of the loaded resonator.
Ya Xie, Fu-Chang Chen, Jian-Feng Qian
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Tecnología y CienciaThe amount of data in today’s communication systems is increasing considerably, which in turn increases the bandwidth needed to deploy a given service. This requires antennas that are capable of operating simultaneously in more than one band.
Juan Eduardo Ise +5 more
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Compact Dual-band Filtering Power Divider with Low Loss and High Isolation Based on Open-Circuited Stepped-impedance Resonators [PDF]
Journal of Microwaves, Optoelectronics and Electromagnetic ApplicationsIn this paper, a novel, compact, and high-performance dual-band filtering power divider is presented. The proposed circuit is constructed from a dual-band power divider and open-circuited stepped-impedance resonators.
Nguyen Minh Giang +4 more
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Miniature Multi-Band Absorptive Bandstop Filter Designs Using Bridged-T Coils
IEEE Access, 2018 In this paper, miniature absorptive bandstop filters (ABSFs) with one to three stopbands are demonstrated. First, the proposed single-band ABSF is realized by the introduction of one lossy resonator to a conventional stub bandstop filter, while the ...
En-Wei Chang, Yo-Shen Lin
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Dual-band single-pixel telescope [PDF]
Optics Express, 2020 Single-pixel imaging systems can obtain images from a wide range of wavelengths at low-cost compared to those using conventional multi-pixel, focal-plane array sensors, especially at wavelengths outside the visible spectrum. The ability to sense short-wave infrared radiation with single-pixel techniques extends imaging capability to adverse weather ...
Zhang, Yiwei +4 more
openaire +2 more sources