Results 21 to 30 of about 311,742 (212)
A Vivaldi Antenna with Improved Bandwidth and Gain [PDF]
, 2022 In this paper, the radiation characteristics of the conventional Vivaldi antenna are improved by proposing a novel design of a Vivaldi antenna. This proposed Vivaldi antenna is excited through three slots by using the L-probe microstrip feeder. The novel
Podd, Frank, Elhefnawy, Mohamed
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Broadband All-Metal Vivaldi Array Antenna with Pyramidal-Shaped Wings for LEO Satellite Applications [PDF]
Journal of Electromagnetic Engineering and Science, 2023 In this paper, we propose an all-metal Vivaldi antenna with pyramidal-shaped conductive wings for use in satellite signal intelligence applications. The inner metal Vivaldi antenna consists of radiating flares and a transition part between the feeder and
Doyoung Jang +3 more
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Reconfigurable wideband patch antenna for cognitive radio [PDF]
, 2009 Cognitive radio communication is envisaged to be a new paradigm of methodologies for enhancing the performance of radio communication systems through the efficient utilization of radio spectrum.
AbuTarboush, HF +14 more
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Gain and Bandwidth Enhancement of a Metamaterial Loaded Antipodal Vivaldi Antenna Fed by Substrate Integrated Waveguide [PDF]
Radioengineering, 2022 This paper proposes a novel wideband, high-gain, compact Vivaldi antenna operating in the 14.7-20.5 GHz frequency range, where the antenna is fed by the substrate integrated waveguide (SIW). A Negative Index Metamaterial (NIM) has been designed, with its
A. Bordbar, F. Mohajeri, Z. Ghorbani
doaj
Improvement on a 2 × 2 Elements High-Gain Circularly Polarized Antenna Array
International Journal of Antennas and Propagation, 2015 A novel antipodal Vivaldi antenna with tapering serrated structure at the edges is proposed. Compared with traditional Vivaldi antennas without serrated structure, the gain of the designed antenna is significantly improved in the desired frequency band ...
C. Liu, A. Yan, C. Yu, T. Xu
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A design of modified Vivaldi antenna [PDF]
Proceedings of the 2016 5th International Conference on Advanced Materials and Computer Science, 2016 Conventional Vivaldi antenna has the advantages of ultra wideband, but its backward radiation is too large and the the gain of the main radiation direct is low (1). On the basis of the original Vivaldi antenna, this paper designed a Vivaldi antenna element with a groove, its working frequency is from 400 MHz to 900 MHz.
Manchuan Zhao, Yuwen Wang, Ting Yin
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Broadband dual‐podal multilayer Vivaldi antenna array for remote sensing applications
IET Microwaves, Antennas & Propagation, 2023 A novel wideband multilayer dual‐podal Vivaldi antenna with broadband characteristics from 5.5 to 20.82 GHz, is presented. Contrary to traditional Vivaldi antennas that are antipodal‐based, this design is realised by placing a pair of podal Vivaldi ...
Muhammad Nasir +5 more
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IEEE Open Journal of Antennas and Propagation, 2021 This paper reports on the design of frequency-dependent feed networks for linear antenna arrays with minimum half-power beamwidth (HPBW) variation in more than one octave of the frequency spectrum.
Dakotah J. Simpson, Dimitra Psychogiou
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Vivaldi End-Fire Antenna for THz Photomixers [PDF]
, 2022 We propose a broadband end-fire antenna for continuous-wave terahertz (THz) photomixing–based devices working in the frequency range of 0.5–1 THz. A compact Vivaldi antenna is presented that does not require any hyper-hemispherical silicon lens to ...
Kumar, Rajesh +3 more
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Jurnal Elektronika dan Telekomunikasi, 2021 Microwave imaging, such as images for radiological inspection in the medical profession, is one of the applications utilized in ultra-wideband (UWB) frequency ranges. The Vivaldi antenna is one of the most popular antennas for this purpose.
Findi Nur Witriani +6 more
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