期刊
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION
卷 56, 期 4, 页码 1201-1206出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TAP.2008.919223
关键词
electromagnetic bandgap (EMB) materials; leaky waves (LWs); leaky wave (LW) antennas; reflector antenna feeds
The impact of mutual coupling between neighboring radiators in an imaging array configuration in the presence of a dielectric super-layer is investigated. The super-layer generally aims at increasing the directivity of each element of the array. However, here it is shown that the directivity of the embedded element patterns are reduced by a high level of mutual coupling. Thus a trade off between directivity enhancement and close packing of the array elements must be found depending on the bandwidth and the pattern requirements.
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