Title :
Microstrip line directional couplers with high directivity
Author :
Chun, Y.-H. ; Moon, J.-Y. ; Yun, S.-W. ; Rhee, J.-K.
Author_Institution :
Millimeter-wave Innovation Technol. Res. Center, Dongguk Univ., Seoul, South Korea
fDate :
3/4/2004 12:00:00 AM
Abstract :
Novel uniplanar backward directional couplers are analysed and designed. Microstrip parallel coupled lines and asymmetrical delay lines enable a multi-sectioned coupler to enhance directivity as well as the coupling. Single and multi-sectioned couplers at 1.8 GHz have been designed and measured, providing excellent directivity.
Keywords :
delay lines; microstrip directional couplers; 1.8 GHz; asymmetrical delay lines; high directivity couplers; microstrip line directional couplers; multisectioned couplers; uniplanar backward directional couplers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20040186
