Results 31 to 40 of about 57,628 (317)
Ain Shams Engineering Journal, 2021 In this paper, the antenna array appropriate topologies and configurations are investigated to reduce the impact of large gain variation between array elements that is produced due to the mutual coupling.
Amany M. Saleh +3 more
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Research on Spaceborne Multi-Beam Phased Array Fed Refl ector Antenna
天地一体化信息网络, 2022 Spaceborne multi-beam antenna is one of the main means to meet the needs of high-capacity and high-speed satellite communication services, and is widely used in various satellite communication systems.Various forms of antennas, such as spaceborne phased ...
Tao YANG, Lei LI, Yongqing ZOU
doaj +2 more sources
Study of Horizontally Polarized Omnidirectional Microstrip Antenna Arrays [PDF]
Radioengineering, 2017 This paper presents two microstrip antenna arrays for horizontally polarized (HP) omnidirectional application, namely rectangular patch antenna array and H-shaped patch antenna array.
K. Wei, J. Y. Li, L. Wang, R. Xu
doaj
A Switchable Biomimetic Antenna Array [PDF]
IEEE Antennas and Wireless Propagation Letters, 2021 Biomimetic antenna arrays inspired by the fly Ormia ochracea showed a promising improvement of the angle estimation capabilities of radar sensors. So far, there is usually a loss of output power associated with this improvement decreasing the detectability of weak radar targets. In this paper, an electronically switchable two-element biomimetic antenna
Ines Dorsch +2 more
openaire +1 more source
Adaptive Antenna Array Assisted Dynamic Channel Allocation Techniques [PDF]
, 2001 —The performance of base station adaptive antenna arrays (AAAs) is investigated in conjunction with fixed channel allocation (FCA) and dynamic channel allocation (DCA) schemes.
Blogh, J.S. +5 more
core +1 more source
MIMO Antenna Array Design with Polynomial Factorization
International Journal of Antennas and Propagation, 2013 One of the main advantages of multiple-input multiple-output (MIMO) antenna is that the degrees-of-freedom can be significantly increased by the concept of virtual antenna array, and thus the MIMO antenna array should be carefully designed to fully ...
Wen-Qin Wang, Huaizong Shao, Jingye Cai
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Practical Noise Model of an Active Electronically Scanning Array
International Journal of Antennas and Propagation, 2023 Active electronically scanning arrays are now widely used in radar and communication systems. The noise characteristics are critical to the system signal-to-noise ratio, thus modeling of the antenna array noise is useful.
Jian Mi, Kan Wang, Zhao Li, Hongbing Sun
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Design of controlled RF switch for beam steering antenna array
, 2008 YesA printed dipole antenna integrated with a duplex RF switch used for mobile base station antenna beam steering is presented. A coplanar waveguide to coplanar strip transition was adopted to feed the printed dipole.
Abd-Alhameed, Raed +3 more
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A Broadband Antenna Array Using Full-Wave Dipole
IEEE Access, 2017 This work introduces a bandwidth broadening technique for full-wave dipole (FWD) antennas and arrays, which are realized by introducing gaps in both two arms of the dipole.
Guang-Hua Sun, Sai-Wai Wong, Hang Wong
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Embryonics Based Phased Array Antenna Structure With Self-Repair Ability
IEEE Access, 2020 The reliability of phased array antenna can be improved with the self-repairing technology, and the existing self-repair method based on the TR module reconfiguration has problems such as slow calculation speed and difficulty in calculating the elements'
Sai Zhu +4 more
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