Meander line millimetre-wave liquid crystal based phase shifter
Meander line millimetre-wave liquid crystal based phase shifter
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DOI：
10.1049/el.2010.3513
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发表时间：
2010-05
影响因子：
1.1
通讯作者：
S. Bulja;D. Mirshekar-Syahkal
中科院分区：
文献类型：
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作者：
S. Bulja;D. Mirshekar-Syahkal
提出了一种基于液晶的倒置微带弯折线移相器。通过使用外部电场来实现相移的控制。为了方便晶片上的测量和电场的LC的应用程序，一个专门开发的从倒置微带线的CPW的过渡。使用两种LC混合物测试所提出的曲折线移相器的性能：第一种是标准LC混合物，通常称为E7，而第二种混合物称为MDA-00-3506。在50 GHz下，对于50 mm长的微带线，用E7和MDA-00-3506分别实现了202°和270°的差分相移，并对结果进行了讨论。
A liquid crystal (LC) based inverted microstrip meander line phase shifter is presented. The control of phase shift is achieved through use of an external electric field. To facilitate on-wafer measurements and the application of the electric field to the LC, a specially developed transition from the inverted microstrip line to the CPW is used. The performance of the proposed meander line phase shifter is tested using two LC mixtures: first, the standard LC mixture, commonly referred to as E7, while the second mixture is known as MDA-00-3506. A differential phase shift of 202° is achieved with the phase shifter using E7 and 270° using MDA-00-3506 at 50 GHz for a 50 mm-long microstrip line meandered into a length of 7.67 mm. The results are discussed.