60 GHz Reflection Type Phase Shifter based on liquid crystal

60 GHz Reflection Type Phase Shifter based on liquid crystal
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基于液晶的60 GHz反射型移相器

DOI:
10.1109/rws.2010.5434253
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发表时间:
2010
期刊:
--
影响因子:
--
通讯作者:
Bulja S
Bulja S
中科院分区:
--
文献类型:
--
作者:
Bulja S

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首次提出了一种采用液晶(LC)的60 GHz频段紧凑型移相器。基于反射型移相器(RTPS)结构,它包括一个3-dB耦合器和可调谐反射负载形成在一个CPLLC基板上。用于形成衬底的LC被称为E7。LC的偏置使用外部电场来实现,从而允许控制反射负载的电抗。为了便于晶片上的测量和电场的LC的应用,从微带线的CPW的过渡被使用。该RTPS的初步测量结果显示,差分相移超过130度,品质因数为11.4° dB,回波损耗在61 GHz时优于− 10 dB。
For the first time, a compact 60 GHz band phase shifter incorporating liquid crystal (LC) is presented. Based on the Reflection Type Phase Shifter (RTPS) structure, it comprises a 3-dB coupler and tunable reflective loads formed on a nematic LC substrate. The LC used to form the substrate is known as E7. Biasing of the LC is achieved using an external electric field, allowing for the control of the reactance of the reflective loads. To facilitate on-wafer measurements and the application of the electric field to the LC, a transition from the microstrip line to the CPW is used. Preliminary measurement results for this RTPS show a differential phase shift of over 130 degrees, a figure of merit of 11.4° dB and return losses better than −10dB at 61 GHz.
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DOI: --
发表时间: 1965
期刊:
影响因子: --
作者:
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DOI: --
发表时间: 2003
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影响因子: --
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DOI: --
发表时间: 2005
期刊: European Radar Conference, 2005. EURAD 2005.
影响因子: --
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