A New Plasmonic Broadband Branch-Line Coupler for Nanoscale Wireless Links

A New Plasmonic Broadband Branch-Line Coupler for Nanoscale Wireless Links

In this letter, we investigate the performance of a plasmonic conductor-backed coplanar waveguide as a transmission line. We illustrate the characteristics of modes supported by this structure and present its analytical model of the characteristic impedance, which is further used to design broadband...

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Veröffentlicht in:IEEE photonics technology letters 2017-09, Vol.29 (18), p.1568-1571
Hauptverfasser: Krishna, Kondaveeti Murali, Rahman, Mohammad Zia Ur, Fathima, Shaik Yasmin
Format: Artikel
Sprache:eng
Schlagworte:
branch-line coupler
Broadband
Conductors
coplanar waveguide
Coplanar waveguides
Couplers
Design optimization
Impedance
Insertion loss
Optical waveguides
Plasmons
Surface impedance
Surface plasmons (SPs)
Surface waves
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Beschreibung
Zusammenfassung:In this letter, we investigate the performance of a plasmonic conductor-backed coplanar waveguide as a transmission line. We illustrate the characteristics of modes supported by this structure and present its analytical model of the characteristic impedance, which is further used to design broadband branch-line coupler for nano scale wireless links. The optimized design exhibits the required performance for a wide bandwidth of about 40 THz where the insertion loss is in the range of 5±1 dB.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2017.2737036