Title :
Multilayer MMIC branch-line coupler and broad-side coupler
Author :
Toyoda, I. ; Hirota, T. ; Hiraoka, T. ; Tokumitsu, T.
Author_Institution :
NTT Radio Commun. Syst. Lab., Kanagawa, Japan
Abstract :
Very small, multilayer monolithic microwave integrated circuit (MMIC) couplers are proposed. Novel methods for size reduction, i.e., a quasi-lumped elements approach and a newly developed multilayer coupled-line structure, are also described. A 24-26-GHz-band branch-line coupler and a 20-30-GHz-band broadside coupler were implemented in very small areas of less than 0.4 mm*0.4 mm and 0.2 mm*0.2 mm, respectively. Both couplers used a meanderlike thin-film microstrip line configuration to achieve a drastic size reduction.<>
Keywords :
MMIC; lumped parameter networks; microstrip components; waveguide couplers; 20 to 30 GHz; 24 to 26 GHz; branch-line coupler; broad-side coupler; meanderlike thin-film microstrip line configuration; multilayer MMIC couplers; multilayer coupled-line structure; quasi-lumped elements approach; size reduction; Conductors; Coupling circuits; Equations; Frequency; Gallium arsenide; Impedance; MMICs; Microwave circuits; Nonhomogeneous media; Strips;
Conference_Titel :
Microwave and Millimeter-Wave Monolithic Circuits Symposium, 1992. Digest of Papers, IEEE 1992
Conference_Location :
Albuquerque, NM, USA
Print_ISBN :
0-7803-0677-5
DOI :
10.1109/MCS.1992.186003
