期刊
IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS
卷 19, 期 5, 页码 786-790出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LAWP.2020.2980249
关键词
Slot antennas; Antenna radiation patterns; Antenna measurements; Dipole antennas; Microstrip antenna arrays; Compact; endfire arrays; high gain; slot arrays
资金
- Natural Science Foundation of China [61701549]
A novel folded slot antenna is proposed for the design of high-gain and compact endfire arrays. This letter shows that a planar slot antenna retains bidirectional radiation characteristics when folded into a compact structure. A folded slot antenna was designed in order to obtain a high endfire gain of 6 dBi. The proposed slot antenna's high gain makes it a good candidate for designing endfire arrays with vertical polarization. A series-fed technique is proposed in order to design two-element endfire and backfire arrays. Subsequently, an eight-element endfire array is proposed by combining endfire and backfire two-element arrays. The eight-element array is capable of producing a high endfire gain of 13.2 dBi with a size of 1.8 lambda(0) x 1.4 lambda(0), which is less than half the size of the existing endfire antennas with similar vertically polarized gain.
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