Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines

Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines

A magnetic-free multifunction nonreciprocal device based on switched delay lines (SDLs) has been proposed in this paper. It is constructed with two double balanced gyrators (DBGs) and four baluns, each pair of differential ports of the balun connect the ports at the same orientation of the two DBGs,...

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Bibliographic Details
Main Authors: Fengchuan Wu, Yuejun Zheng, Yunqi Fu
Format: Article
Language:English
Published: MDPI AG 2019-08-01
Series:Electronics
Subjects:
anti-interference
circulator
gyrator
isolator
magnetic-free
multifunction
nonreciprocal
power capacity
switched delay lines
ultra-broadband
Online Access:https://www.mdpi.com/2079-9292/8/8/862
id doaj-df7adc33a69f4ebb96b7fbfe2589af5e
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spelling doaj-df7adc33a69f4ebb96b7fbfe2589af5e2020-11-25T02:20:26ZengMDPI AGElectronics2079-92922019-08-018886210.3390/electronics8080862electronics8080862Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay LinesFengchuan Wu0Yuejun Zheng1Yunqi Fu2College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaCollege of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, ChinaA magnetic-free multifunction nonreciprocal device based on switched delay lines (SDLs) has been proposed in this paper. It is constructed with two double balanced gyrators (DBGs) and four baluns, each pair of differential ports of the balun connect the ports at the same orientation of the two DBGs, respectively. Due to the asymmetry of the clock control signals acting on the switches, the time reversal symmetry of the transmission line between the Gilbert quad-switch-sets (GQSS) can be broken to achieve non-reciprocity. It can be used as a circulator, gyrator, or isolator by setting different control signals. The device has infinite working bandwidth in theory based on the SDLs. Common mode interference can be better suppressed by using differential transmission structures. Moreover, power capacity can be improved compared to the previous work. Then, experiments have been done to verify the device as a circulator. Broadband property and the anti-interference property have been verified.https://www.mdpi.com/2079-9292/8/8/862anti-interferencecirculatorgyratorisolatormagnetic-freemultifunctionnonreciprocalpower capacityswitched delay linesultra-broadband
collection DOAJ
language English
format Article
sources DOAJ
author Fengchuan Wu
Yuejun Zheng
Yunqi Fu
spellingShingle Fengchuan Wu
Yuejun Zheng
Yunqi Fu
Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines
Electronics
anti-interference
circulator
gyrator
isolator
magnetic-free
multifunction
nonreciprocal
power capacity
switched delay lines
ultra-broadband
author_facet Fengchuan Wu
Yuejun Zheng
Yunqi Fu
author_sort Fengchuan Wu
title Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines
title_short Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines
title_full Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines
title_fullStr Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines
title_full_unstemmed Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines
title_sort magnetic-free nonreciprocal multifunction device based on switched delay lines
publisher MDPI AG
series Electronics
issn 2079-9292
publishDate 2019-08-01
description A magnetic-free multifunction nonreciprocal device based on switched delay lines (SDLs) has been proposed in this paper. It is constructed with two double balanced gyrators (DBGs) and four baluns, each pair of differential ports of the balun connect the ports at the same orientation of the two DBGs, respectively. Due to the asymmetry of the clock control signals acting on the switches, the time reversal symmetry of the transmission line between the Gilbert quad-switch-sets (GQSS) can be broken to achieve non-reciprocity. It can be used as a circulator, gyrator, or isolator by setting different control signals. The device has infinite working bandwidth in theory based on the SDLs. Common mode interference can be better suppressed by using differential transmission structures. Moreover, power capacity can be improved compared to the previous work. Then, experiments have been done to verify the device as a circulator. Broadband property and the anti-interference property have been verified.
topic anti-interference
circulator
gyrator
isolator
magnetic-free
multifunction
nonreciprocal
power capacity
switched delay lines
ultra-broadband
url https://www.mdpi.com/2079-9292/8/8/862
work_keys_str_mv AT fengchuanwu magneticfreenonreciprocalmultifunctiondevicebasedonswitcheddelaylines
AT yuejunzheng magneticfreenonreciprocalmultifunctiondevicebasedonswitcheddelaylines
AT yunqifu magneticfreenonreciprocalmultifunctiondevicebasedonswitcheddelaylines
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