Title :
Finite-ground coplanar-waveguide branch-line couplers
Author :
Lin, Chieng-Tang ; Liao, Chun-Lin ; Chen, Chun Hsiung
Author_Institution :
Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
fDate :
3/1/2001 12:00:00 AM
Abstract :
Two branch-line (BL) couplers based on finite-ground coplanar-waveguide (FGCPW) structures are proposed. The first one uses the bended structure to reduce the size of the normal quarter-wavelength two-arm BL coupler. The second one improves the bandwidth by adding external compensated networks, which are also folded for size reduction. In this study, the performances of these BL couplers are examined, theoretically and experimentally.
Keywords :
coplanar waveguide components; waveguide couplers; bended structure; external compensated network; finite-ground coplanar-waveguide branch-line coupler; Bandwidth; Coplanar waveguides; Couplers; Coupling circuits; MIM capacitors; Microwave amplifiers; Microwave circuits; Power dividers; Slotline; Waveguide components;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/7260.915626
