LEAKY CHARACTERISTICS OF A NEW MILLIMETER WAVE ANTENNA BASED ON GROOVE GUIDE WITH AN ASYMMETRIC CONDUCTOR STRIP |
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| Authors: | Yongmei Pan Shanjia Xu Ke Wu |
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| Affiliation: | 1. Department of Electronics Engineering and Information Science, University of Science & Technology of China, Hefei, P.R. China, 230027
2. Department of Electrical and Computer Engineering, Ecole Polytecnique de Montréal, University of Montreal, P.Q., Canada
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| Abstract: | A new millimeter wave leaky wave antenna is presented in this paper, which is a modification of the groove guide with an asymmetric conductor strip by introducing a dielectric slab into the conductor plane region of the groove guide antenna. The leakage property of the new antenna is carefully examined through calculations of an equivalent network, which is developed here with taking into account the coupling between different modes to guarantee the calculating accuracy. It has been found that the new leaky wave antenna is of larger leakage constant than that for the original groove guide antenna because of the introduction of the dielectric slab. Extensive numerical results of the leakage characteristics are given to establish useful guidelines for the design of the new type groove guide leaky wave antenna. |
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