A SLOTTED WAVEGUIDE APPLICATOR FOR CONTINUOUS FLOW GRAIN DRYING

被引:0
作者
St-Denis, E. [1 ]
Raghavan, G. S. V. [1 ]
Akyel, C. [2 ]
Venkatesh, M. [1 ]
机构
[1] McGill Univ, Dept Agr & Biosyst Engn, Ste Anne De Bellevue, PQ, Canada
[2] Ecole Polytech, Engn, Montreal, PQ H3C 3A7, Canada
基金
加拿大自然科学与工程研究理事会;
关键词
Slotted waveguide; antenna; radiation; moisture content; drying; coupling characteristics;
D O I
10.1080/08327823.2001.11688444
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A slotted waveguide antenna was designed and developed with series slots cut on the broad side that constituted a popular means of coupling microwaves with grain for drying. The radiating characteristics of the slotted waveguide antenna mounted in a setup that simulated the coupling to a grain conveying tube were studied at a frequency of 2.45 GHz. The antenna consisted of a WR-340 waveguide made of copper. The effect of the slot inclination angle empty set, moisture content and the shape of the slots were investigated. The results indicated 55 degrees as an optimum slot angle for slots having a width of 13 mm and a length 58 mm. Slots with a width of 6 mm did not exhibit any regular behavior and the effect of empty set was not clearly identified.
引用
收藏
页码:3 / 16
页数:14
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