Results 141 to 150 of about 1,829,302 (216)

A High-Gain and Wideband Series-Fed Angled Printed Dipole Array Antenna

IEEE Transactions on Antennas and Propagation, 2020
In this communication, we have proposed a nonuniform series-fed angled dipole array antenna with a high gain, a wide bandwidth, a good sidelobe level (SLL), and a high front-to-back ratio characteristics. The proposed array antenna structure consisted of
Heesu Wang, K. E. Kedze, I. Park
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Reduced-Sidelobe Multibeam Array Antenna Based on SIW Rotman Lens

IEEE Antennas and Wireless Propagation Letters, 2020
A multibeam array antenna (MAA) fed by a Rotman lens with a reduced sidelobe level (SLL) is designed using a substrate integrate waveguide (SIW) technology.
Ji-wei Lian, Y. Ban, He Zhu, Y. Guo
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Symmetrical Antenna Arrays

Proceedings of the IRE, 1945
Not ...
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Development, Implementation, and Characterization of a 64-Element Dual-Polarized Phased-Array Antenna Module for 28-GHz High-Speed Data Communications

IEEE transactions on microwave theory and techniques, 2019
Silicon-based millimeter-wave (mm-wave) phased-array technologies are enabling directional wireless data communications at Gb/s speeds. In this paper, we review and discuss the challenges of implementing a multichip phased-array antenna module for mm ...
X. Gu, Duixian Liu, C. Baks, O. Tageman, B. Sadhu, J. Hallin, L. Rexberg, P. Parida, Y. Kwark, A. Valdes-Garcia   +9 more
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Space Phased Array Antenna Developments: A Perspective on Structural Design

IEEE Aerospace and Electronic Systems Magazine, 2020
As the “right-hand man” to space communications, navigation, environmental monitoring, and other satellite systems, the space active phased array antenna is capable of scanning and covering long distances and large scale ranges through its complex ...
Congsi Wang, Yan Wang, Peiyuan Lian, Song Xue, Qian Xu, Yu Shi, Yu Jia, B. Du, Jing Liu, B. Tang   +9 more
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Plasmonic nanoloop array antenna

Optics Letters, 2010
In this Letter, we create an optical nanoantenna array composed of parasitic plasmonic loops that can enhance radiation characteristics and direct the optical energy successfully. Three metallic loops inspired by the concept of the Yagi-Uda antenna are optimized around the region where they feature high scattering performance to control the radiation ...
Akram, Ahmadi, Hossein, Mosallaei
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Dual-Band Co-Aperture Planar Array Antenna Constituted of Segmented Patches

IEEE Antennas and Wireless Propagation Letters, 2020
A novel dual-band co-aperture planar array antenna is proposed in this letter. The radiating elements operating at a higher frequency band are grouped and reused for the lower frequency band by adopting the concept of segmented patches.
Jie Wu, Cong Wang, Yong-xin Guo
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Spiral antennas and antenna arrays

2005 IEEE Antennas and Propagation Society International Symposium, 2005
The planar square-Archimedean spiral located at the center of a dipole has been demonstrated as a valuable passive antenna element in the upper MM-wave and THz regions between about 100 GHz and 2 THz (Bjarnason, E. et al., Appl. Phys. Lett., vol.85, p.3983, 2004).
R.M. Bilotta, E.B. Brown
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Array-antenna decoupling surfaces for quasi-yagi antenna arrays

2017 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2017
A novel decoupling method for a quasi-Yagi antenna array using partial reflection metal strips is proposed. These reflection metal strips, a kind of Array-antenna Decoupling Surface (ADS), can be designed to cancel the unwanted coupled waves among adjacent antenna elements.
Changning Wei, Ke-Li Wu
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UWB antenna array

2011 International Workshop on Antenna Technology (iWAT), 2011
This paper compares the performances of ultra wideband (UWB) arrays that use sinusoidal waveform for power pattern and ultra-short pulse waveform for energy pattern. In general, antenna arrays cannot have element spacing larger than one wavelength in any plane because the resulting grating lobes absorb much power, which will limit the bandwidth of ...
Dau-Chyrh Chang, Chao-Hsiang Liao, Powen Hsu   +2 more
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