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A tunable group delay circuit for time delay matching applications in communication systems

机译:用于通信系统中的时间延迟匹配应用的可调群延迟电路

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In this paper, a reflective type tunable group delay circuit (TGDC) is proposed. The proposed TGDC consists of a 3 dB 90° hybrid coupler and reflective type resonators. The design equations of the proposed TGDC have been derived using port reduction method and validated by simulation and experimental results. In order to show the validity of the proposed TGDC, the simulation and an experiment were performed for a wideband code division multiple access (WCDMA) downlink band operating at 2.11~2.17 GHz. According to the experiment, the group delay (GD) time variation of 3±0.17 ns over bandwidth of 60 MHz with an excellent flatness is obtained.
机译:本文提出了一种反射型可调群延迟电路(TGDC)。拟议的TGDC由3 dB 90°混合耦合器和反射型谐振器组成。提出的TGDC的设计方程已使用端口减少法推导,并通过仿真和实验结果进行了验证。为了证明所提出的TGDC的有效性,针对工作在2.11〜2.17 GHz的宽带码分多址(WCDMA)下行链路频带进行了仿真和实验。根据该实验,在60 MHz带宽上获得了3±0.17 ns的群时延(GD)时间变化,并具有出色的平坦度。

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