Next Article in Journal
Beyond Snap-In: A Hybrid Nonlinear Control Approach for Actuators Possessing a Square-Law Characteristic
Previous Article in Journal
Modernized Solar Radio Spectrograph in the L Band Based on Software Defined Radio
Open AccessArticle

Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines

College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China
*
Author to whom correspondence should be addressed.
Electronics 2019, 8(8), 862; https://doi.org/10.3390/electronics8080862
Received: 10 July 2019 / Revised: 29 July 2019 / Accepted: 1 August 2019 / Published: 3 August 2019
(This article belongs to the Section Microwave and Wireless Communications)
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. View Full-Text
Keywords: anti-interference; circulator; gyrator; isolator; magnetic-free; multifunction; nonreciprocal; power capacity; switched delay lines; ultra-broadband anti-interference; circulator; gyrator; isolator; magnetic-free; multifunction; nonreciprocal; power capacity; switched delay lines; ultra-broadband
Show Figures

Figure 1

MDPI and ACS Style

Wu, F.; Zheng, Y.; Fu, Y. Magnetic-Free Nonreciprocal Multifunction Device Based on Switched Delay Lines. Electronics 2019, 8, 862.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

1
Back to TopTop