Results 261 to 270 of about 19,229 (302)

Mutual coupling reduction in patch antenna arrays

2018 IEEE International Vacuum Electronics Conference (IVEC), 2018
In this paper, meander line (ML) as a parasitic configuration is introduced to reduce the mutual coupling (MC) between two microstrip patch antenna elements. Inserting a slot in the middle of ground plane is a simple method to reduce the MC, by adding the ML in the proper position in the slot can further reduce the MC.
Qian Li, Chong Ding, Xia Lei, Gangxiong Wu, Ruichao Yang, Minzhi Huang, Yubin Gong, Zhigang Lu, Zhanliang Wang, Hairong Yin, Yanyu Wei   +10 more
openaire   +1 more source

Mutual coupling-based calibration of phased array antennas

Proceedings 2000 IEEE International Conference on Phased Array Systems and Technology (Cat. No.00TH8510), 2002
Calibration of phased arrays is typically performed once during the manufacturing process, and requires large near-field or far-field antenna ranges. Technology Service Corporation (TSC) has demonstrated that by utilizing element mutual coupling characteristics, modern arrays can be accurately calibrated using only existing array elements as sources ...
C. Shipley, D. Woods
openaire   +1 more source

Compensation of mutual coupling in small antenna arrays

14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562), 2003
Far-field pattern synthesis of small antenna arrays is a nontrivial problem, mainly due to mutual coupling, often precluding the use of conventional tapering algorithms. A technique to compensate for mutual coupling in small linear antenna arrays is described. The method consist of calculations of a coupling matrix, which is then used to compensate for
R. Borowiec, R. Hossa, P. Slobodzian, Z. Langowski   +3 more
openaire   +1 more source

Mutual coupling effects in linear antenna arrays

Canadian Journal of Physics, 1970
The effects of mutual coupling among the array elements on the pattern and impedance characteristics of linear antenna arrays are examined. Based upon the assumption that the mutual impedance of two array elements depends only upon the separation of the elements, exact expressions are derived for the properties of infinite and semi-infinite arrays ...
openaire   +1 more source

Mutual coupling compensation in small planar array antennas

IEE Proceedings - Microwaves, Antennas and Propagation, 1998
Far-field pattern synthesis of small antenna arrays is a nontrivial problem. Typically radiation patterns are required to exhibit low sidelobe levels, whilst maintaining the ability to scan the main beam in space. Mutual coupling is a pertinent problem when the number of antenna elements is small, often precluding the use of conventional tapering ...
Darwood, PB, Fletcher, PN, Hilton, GS
openaire   +2 more sources

Mutual coupling effects for small microstrip array antennas

Proceedings of IEEE Antennas and Propagation Society International Symposium, 2002
Mutual coupling can significantly affect the far-field pattern of an array antenna. The finite difference time domain (FDTD) method may be used to determine the far-field pattern with mutual coupling effects included. This is done for three patch arrays consisting of two types of elements, which are excited along orthogonal edges.
M.L. Zimmerman, R.Q. Lee
openaire   +1 more source

Mutual couplings among subsurface antenna array elements

IEEE Transactions on Antennas and Propagation, 1963
Mutual couplings among subsurface antenna elements having various types of current distribution and depths are presented in this paper. The results of theoretical analysis have been correlated with those obtained from simulation experiments.
openaire   +1 more source

Mutual coupling cancelation for compact transmit antenna arrays

2011 IEEE Wireless Communications and Networking Conference, 2011
Mutual coupling between elements in compact transmit antenna arrays is taken into account in performance prediction and system design of multiple-input multi-output (MIMO) systems. The transmitter-end coupling matrix comprised of array impedance matrix and effective load impedance matrix is derived.
Jinhui Chen, Keying Wu
openaire   +1 more source

Compensation of mutual coupling effects in array antennas

IEEE Antennas and Propagation Society International Symposium. 1996 Digest, 2002
The possibilities of compensating for the mutual coupling in array antennas are discussed. An alternative method of viewing the matrix multiplication technique used to compensate for these effects is presented. The signals applied to the antenna ports are modified in order to neutralize the mutual coupling effects.
openaire   +1 more source

Mutual coupling in conformal microstrip patch antenna arrays

IEE Proceedings - Microwaves, Antennas and Propagation, 2003
A finite element–boundary integral method has been developed to investigate the impedance properties of patch elements in an array environment, when the array is embedded in a conformal surface. The effect of mutual coupling between elements in such an array is included in the analysis.
A.J. Sangster, R.T. Jacobs
openaire   +1 more source