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引用次数: 2
摘要
近年来，人们对用于微波和毫米波应用的缝隙天线产生了浓厚的兴趣。cpw馈电槽是最受欢迎的天线类型之一，因为它们可以很容易地与微波集成电路(mic)和单片微波集成电路(mmic)集成(Tsai, H.S.和York, r.a.， 1996)。槽天线具有双向辐射模式。使用反射器可以实现单向图案。这包括腔背槽设计(Yeganeh, S.H.和Birtcher, C, 1993)或PBG(光子带隙)基板上的槽天线(Yang, F. et al.， 2000)。已经证明，折叠槽天线的输入阻抗可以很容易地与传统传输线匹配(Tsai和York)。我们提出了两种改进的折叠槽天线(MFSAs)，它们在2:1的驻波比下分别提供44%和80%的阻抗带宽。
Design of broadband modified folded slot antennas for C-band wireless applications
Recently there has been much interest in slot antennas for microwave and millimeter wave applications. CPW-fed slots are one of the most popular kinds of antennas since they can be easily integrated with microwave integrated circuits (MICs) and monolithic microwave integrated circuits (MMICs) (Tsai, H.S. and York, R.A., 1996). Slot antennas have bidirectional radiation patterns. Unidirectional patterns can be achieved with the use of a reflector. This includes the cavity-backed slot design (Yeganeh, S.H. and Birtcher, C., 1993) or slot antennas on PBG (photonic bandgap) substrates (Yang, F. et al., 2000). It has been demonstrated that folded slot antennas have input impedances that can be easily matched with conventional transmission lines (Tsai and York). We present two types of modified folded slot antennas (MFSAs) which provide impedance bandwidths of 44% and 80% respectively within a VSWR of 2:1.
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