Miniaturized overlapped LC phase delay line

A novel miniaturized ultra-wide bandwidth (DC–35 GHz) LC phase delay line (PDL) based on overlapped meander inductors and air-bridge capacitors is proposed and fabricated. Two 45º and 90º PDLs were designed using a semi-lumped model, and the parameters were calculated and optimized based on transmis...

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Main Authors: Xin Guo, Ling Li, Chenxu Zhao, Zewen Liu
Format: Article
Language:English
Published: AIP Publishing LLC 2014-01-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4861207
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author Xin Guo
Ling Li
Chenxu Zhao
Zewen Liu
author_facet Xin Guo
Ling Li
Chenxu Zhao
Zewen Liu
author_sort Xin Guo
collection DOAJ
description A novel miniaturized ultra-wide bandwidth (DC–35 GHz) LC phase delay line (PDL) based on overlapped meander inductors and air-bridge capacitors is proposed and fabricated. Two 45º and 90º PDLs were designed using a semi-lumped model, and the parameters were calculated and optimized based on transmission line theory and 3D simulations. The lengths of the 45º and 90º delay lines are 110 μm and 286 μm, respectively, which represent respective length reductions of 50% and 75% when compared with the corresponding conventional transmission lines. Over the entire operating band, the phase error is less than 0.6º for the 45º PDL and 2.5º for the 90º PDL. The return loss (S11) for both PDLs is better than 15.5 dB, while the insertion loss (S21) is less than 0.62 dB for both devices. Measured results show perfect consistency with the simulation results for these PDLs, and demonstrate the validity of the corresponding model.
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spelling doaj.art-3fb5a3de8a5045d890e07186252ce0752022-12-21T23:42:27ZengAIP Publishing LLCAIP Advances2158-32262014-01-0143031302031302-710.1063/1.4861207002493ADVMiniaturized overlapped LC phase delay lineXin Guo0Ling Li1Chenxu Zhao2Zewen Liu3Institute of Microelectronics, Tsinghua University, Beijing, 100084, ChinaSmart Grid Research Institute, State Grid, Beijing, 100192, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, 100084, ChinaInstitute of Microelectronics, Tsinghua University, Beijing, 100084, ChinaA novel miniaturized ultra-wide bandwidth (DC–35 GHz) LC phase delay line (PDL) based on overlapped meander inductors and air-bridge capacitors is proposed and fabricated. Two 45º and 90º PDLs were designed using a semi-lumped model, and the parameters were calculated and optimized based on transmission line theory and 3D simulations. The lengths of the 45º and 90º delay lines are 110 μm and 286 μm, respectively, which represent respective length reductions of 50% and 75% when compared with the corresponding conventional transmission lines. Over the entire operating band, the phase error is less than 0.6º for the 45º PDL and 2.5º for the 90º PDL. The return loss (S11) for both PDLs is better than 15.5 dB, while the insertion loss (S21) is less than 0.62 dB for both devices. Measured results show perfect consistency with the simulation results for these PDLs, and demonstrate the validity of the corresponding model.http://dx.doi.org/10.1063/1.4861207
spellingShingle Xin Guo
Ling Li
Chenxu Zhao
Zewen Liu
Miniaturized overlapped LC phase delay line
AIP Advances
title Miniaturized overlapped LC phase delay line
title_full Miniaturized overlapped LC phase delay line
title_fullStr Miniaturized overlapped LC phase delay line
title_full_unstemmed Miniaturized overlapped LC phase delay line
title_short Miniaturized overlapped LC phase delay line
title_sort miniaturized overlapped lc phase delay line
url http://dx.doi.org/10.1063/1.4861207
work_keys_str_mv AT xinguo miniaturizedoverlappedlcphasedelayline
AT lingli miniaturizedoverlappedlcphasedelayline
AT chenxuzhao miniaturizedoverlappedlcphasedelayline
AT zewenliu miniaturizedoverlappedlcphasedelayline