Coupled-line directional coupler based on composite right / left-handed coplanar waveguides
2008 (English)In: META08 - Proceedings of the 2008 International Workshop on Metamaterials, 2008, 301-304 p.Conference paper (Refereed)
A broadside coupled (BSC) coupled-line directional coupler based on Composite Right/Left-Handed (CRLH) Coplanar Waveguide (CPW) is proposed. The CRLH CPW on both sides of the substrate comprises of series gap capacitor, broadside-coupled capacitor, and shunt meandering short-circuited stub inductor symmetrically. The new CRLH CPW coupler exhibits a quasi-0-dB coupling over a very wide bandwidth of 89.4% from 6.45 ~ 13.6GHz centered at 8GHz. It is also very compact and symmetrical compared with the conventional designs. An equivalent circuit model including series inductance, capacitance and shunt inductance and capacitance tank also has been established. Good agreement between the full-wave simulation and equivalent circuit model has been achieved and verified the effectiveness of the proposed circuit model.
Place, publisher, year, edition, pages
2008. 301-304 p.
, META08 - Proceedings of the 2008 International Workshop on Metamaterials
Capacitance, Capacitors, Circuit theory, Directional couplers, Electric lines, Inductance, Broadside-coupled, Circuit models, Composite right/left-handed (CRLH) coplanar waveguides (CPW), Conventional designs, Coupled lines, Equivalent circuit models, Full-wave simulations, Shunt inductances, Stub inductors, Wide bandwidths, Coplanar waveguides
Other Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-154174DOI: 10.1109/META.2008.4723601ScopusID: 2-s2.0-61349143748ISBN: 9781424426089OAI: oai:DiVA.org:kth-154174DiVA: diva2:755916
2008 International Workshop on Metamaterials, META08, 9 November 2008 through 12 November 2008, Nanjing
QC 201410152014-10-152014-10-142014-10-15Bibliographically approved