Compact broadband monolithic 3-dB coupler by using artificial transmission lines

@inproceedings{Monti2008CompactBM,
  title={Compact broadband monolithic 3-dB coupler by using artificial transmission lines},
  author={Giuseppina Monti and Luciano Tarricone},
  year={2008}
}
This letter presents a broadband rat-race coupler designed by using right-handed artificial transmission lines (ATLs) combined with a composite right/left-handed ATL; in order to limit spurious parasitic effects, by using metal–air–metal capacitor and short circuited stubs, both kinds of ATLs have been designed without lumped elements, leading to a very compact and monolithic device. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2662–2667, 2008; Published online in Wiley… CONTINUE READING