Miniature Antenna Using Printed Coupled Lines Emulating Degenerate Band Edge Crystals
Miniature Antenna Using Printed Coupled Lines Emulating Degenerate Band Edge Crystals
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DOI：
10.1109/tap.2009.2019874
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发表时间：
2009-06
影响因子：
5.7
通讯作者：
G. Mumcu;K. Sertel;J. Volakis
中科院分区：
文献类型：
--
作者：
G. Mumcu;K. Sertel;J. Volakis
提出了一种利用简并带边（DBE）晶体高阶色散特性的小型印刷天线设计。首先，DBE晶体的单位单元使用印刷在低损耗电介质基板上的非耦合和耦合微带（MS）线部分的简单组合来仿真。随后，通过以圆形周期性方式级联两个这样的MS-DBE单位单元来形成谐振天线。本文的第一部分是专门的天线/阵列的设计和表征使用低对比度介质基板（罗杰斯Duroid，isinr = 2.2）。接下来，给出使用高介电常数基板（氧化铝：Al 2 O3，isinr = 9.6）的制造和设计验证。所制造的天线被测量为在1.48 GHz处具有3.0%带宽的4.5 dB的宽边增益。对于这个增益和带宽，我们证明了所提出的MS-DBE天线具有100/9倍的100/9足迹，是在文献中最小的。
A miniature printed antenna design that exploits higher-order dispersion behavior in degenerate band edge (DBE) crystals is proposed. First, the unit cell of a DBE crystal is emulated using a simple combination of uncoupled and coupled microstrip (MS) line sections printed on a low loss dielectric substrate. Subsequently, a resonant antenna is formed by cascading two such MS-DBE unit cells in a circularly periodic fashion. The first part of the paper is devoted to the antenna/array design and characterization using a low contrast dielectric substrate (Rogers Duroid, isinr = 2.2). Next, fabrication and design verification using a high dielectric constant substrate (alumina: Al2O3, isinr = 9.6) is given. The manufactured antenna was measured to have a broadside gain of 4.5 dB at 1.48 GHz with 3.0% bandwidth. For this gain and bandwidth, we demonstrate that the proposed MS-DBE antenna has a lambda0/9 times lambda0/9 footprint and is among the smallest in the literature.