Zobrazeno 1 - 10
of 1 520
pro vyhledávání: '"Qing-Huo Liu"'
Publikováno v:
Journal of Electronic Science and Technology, Vol 22, Iss 3, Pp 100276- (2024)
Designing a sparse array with reduced transmit/receive modules (TRMs) is vital for some applications where the antenna system's size, weight, allowed operating space, and cost are limited. Sparse arrays exhibit distinct architectures, roughly classif
Externí odkaz:
https://doaj.org/article/830a6e03574d46b78958807fe0d23a59
Publikováno v:
IEEE Journal of Microwaves, Vol 4, Iss 2, Pp 293-302 (2024)
In this paper, the design methodology and implementation of single-band and multiple-band elliptic function bandpass filters (BPFs) are presented, based on the concept of bandstop resonator (BSR) sections. One or more single-mode and multiple-mode BS
Externí odkaz:
https://doaj.org/article/28f640b119b54455a62547580c45b914
Publikováno v:
IEEE Access, Vol 7, Pp 131282-131288 (2019)
The conventional monopulse comparator, which commonly consists of a power divider, a standard 3dB-coupler and a 90-degree phase shifter, occupies a significantly large area of the antenna aperture. This results in a low efficiency. In order to improv
Externí odkaz:
https://doaj.org/article/40f3ccf29259476580f12eeb8a90e0e4
Publikováno v:
IEEE Access, Vol 9, Pp 153824-153837 (2021)
Waveguide problems are fundamental to elastic and acoustic wave propagation, where we are interested in finding the propagation constants and modal patterns of waveguide modes. As the waveguide is assumed uniform in one direction, the original 3-D pr
Externí odkaz:
https://doaj.org/article/09e45d7f8bc340dfb3db992c4eb45336
Autor:
Yinong Xie, Yongjie Ma, Xueying Liu, Sayed Ali Khan, Wei Chen, Liguo Zhu, Jinfeng Zhu, Qing Huo Liu
Publikováno v:
IEEE Journal of Selected Topics in Quantum Electronics. 29:1-10
Autor:
Yi Liao, Hu Tang, Xiaolong Chen, Wen-Qin Wang, Mengdao Xing, Zhi Zheng, Jian Wang, Qing Huo Liu
Publikováno v:
IEEE Access, Vol 8, Pp 50107-50117 (2020)
The range-angle-dependent beampattern of frequency diverse array (FDA) makes it capable of dealing with range-dependent interference, which cannot be handled by conventional phased array. However, current publications pay more attention to the dot-sh
Externí odkaz:
https://doaj.org/article/4dfd2433258246288886a0d789bb4f53
Publikováno v:
IEEE Access, Vol 8, Pp 203048-203057 (2020)
This article presents a double-layer four-corner-fed slotted waveguide sparse array antenna designed for the near-field-focused applications in the X-band. Generally, it is challenging to realize the ideal phase distribution of the near-field focused
Externí odkaz:
https://doaj.org/article/af58cacc76d04dffb06d7df45036ca84
Publikováno v:
AIP Advances, Vol 11, Iss 11, Pp 115204-115204-7 (2021)
Due to the divergence characteristics of vortex microwaves, it is difficult to determine orbital angular momentum (OAM) orders through far fields, while the spiral spectrum analysis method based on the area integral of antenna near fields is complica
Externí odkaz:
https://doaj.org/article/e6a42a9851e24f4eb9285d79cd55e2ed
Publikováno v:
IEEE Transactions on Antennas and Propagation. 71:4612-4617
Publikováno v:
IEEE Transactions on Antennas and Propagation. 71:4600-4605