摘要
提出了一种新型的差分双频缝隙天线,通过接地板上刻蚀弯折缝隙的方法实现双频谐振。天线整体尺寸为60mm×60mm(0.36λ1×0.36λ1,λ1为天线低频段的导波波长)。为了改善天线低频段的增益和辐射特性,设计了一种新型的双频段左手材料,并作为天线的覆层。结果表明,覆层左手材料的差分双频缝隙天线的工作频段为0.9GHz和2.4GHz,低频段和高频段的增益分别为1.2dBi和6.3dBi。
A differential dual-band slot antenna is mentioned in this paper. Dual bands are realized using meander slots in the ground plane. Compared with the conventional half-wavelength antenna, the proposed antenna has a compact size of 60 mm × 60 rnm （0. 36 λ1 × 0. 36 ,λ1, λ1 is the guided wavelength at the low frequency）. In order to improve the gain and radiation characteristic of the low frequency, a novel periodic structure of double frequency lefthanded materials （LHMs） is designed to cover the antenna. The results show that the gain of two bands is 1.2 dBi and 6.3 dBi.
基金
中国电子科技集团公司山西省重点实验室专项资金(ZX15ZS391)
山西省科技研究基金(2015021083)
山西省青年科学基金(2014021020-1)
国家重点基础研究发展计划(2013CBA01700)
关键词
左手材料
差分天线
双频天线
增益
left-handed metamaterials（LHMs）, differential antenna, dual-band antenna, gan
