Acoustic rat-race coupler and its applications in non-reciprocal systems

The Journal of the Acoustical Society of America
Farzad Zangeneh-Nejad, Romain Fleury

Abstract

Waveguide hybrid junctions, such as Magic-T and rat-race couplers, have been of great interest in microwave technology not only for their applications in power monitoring, but also for design and synthesis of various non-reciprocal devices including electromagnetic circulators and isolators. Here, an acoustic rat-race coupler is designed and demonstrated for the first time, working on the basis of constructive and destructive interferences between the clockwise and counterclockwise of a ring resonator. It is then shown how the sound isolation provided by such a coupler enables the realization of an acoustic four-port circulator, a device which has not been reported as yet. Many other promising acoustic devices comprising power combiners, power dividers, mixers, and modulators can be envisioned to be implemented based on the proposed rat-race coupler.

References

Oct 4, 2003·Physical Review Letters·Evan J ReedJohn D Joannopoulos
Oct 26, 2010·Nature Materials·B LiangJ C Cheng
Aug 30, 2013·Scientific Reports·Yong LiJian-chun Cheng
Nov 15, 2013·Nature·Martin Maldovan
Oct 31, 2014·Nature Communications·Feng LiChiara Daraio
Jan 7, 2015·Nature Communications·Romain FleuryAndrea Alù
Jun 4, 2015·Scientific Reports·Qing WangYan-Feng Chen
Jun 10, 2015·Scientific Reports·Jun XuSébastien Guenneau
Dec 20, 2015·Physical Review Letters·Thibaut DevauxVincent Pagneux
Jan 8, 2016·Scientific Reports·Hussein EsfahlaniJuan R Mosig
Jan 26, 2016·Scientific Reports·Zhong-Ming GuJian-Chun Cheng
Jun 18, 2016·Nature Communications·Romain FleuryAndrea Alù
Aug 27, 2016·Scientific Reports·Kyungjun SongTaesung Kim
Nov 12, 2016·Nature Communications·Yu-Gui PengXue-Feng Zhu
Apr 14, 2017·Scientific Reports·Swapnil BhuktareAshwin A Tulapurkar
Apr 30, 2017·Physical Review Letters·A V Poshakinskiy, A N Poddubny
Dec 9, 2017·Physical Review Letters·Hamed AbbaszadehVincenzo Vitelli
Jul 12, 2018·Scientific Reports·Farzad Zangeneh-Nejad, Romain Fleury
Apr 24, 2019·Physical Review Letters·Farzad Zangeneh-Nejad, Romain Fleury

❮ Previous
Next ❯

Citations

Aug 3, 2019·The Journal of the Acoustical Society of America·Romain FleuryAndrew N Norris
Jan 8, 2021·Proceedings. Mathematical, Physical, and Engineering Sciences·Hyeonu HeoArup Neogi

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.