Title :
Ultrawideband characterisation of CPW GaAs monolithic 60 GHz couplers using overlaid structures
Author :
Chongcheawchamnan, M. ; Nam, S. ; Robertson, I.D. ; Elgaid, K. ; Thayne, I.G.
Author_Institution :
Mahanakorn Univ. of Technol., Bangkok, Thailand
Abstract :
Novel Coplanar Waveguide (CPW) coupler structures are proposed and successfully implemented at 60 GHz on a GaAs substrate. The proposed structures use a combination of very small gap, made possible by an advanced e-beam direct-write metal patterning process, and silicon dielectric overlays to achieve a tight coupling. In comparison with a CPW Lange coupler, the proposed couplers provide a smaller size and better performances
Keywords :
III-V semiconductors; MIMIC; coplanar waveguide components; gallium arsenide; waveguide couplers; 60 GHz; CPW; GaAs; MMIC processing; coupler structures; dielectric overlays; e-beam direct-write metal patterning process; hybrid coupler; millimetre-wave ICs; overlaid structures; ultrawideband characterisation; Conductors; Coplanar waveguides; Couplers; Coupling circuits; Dielectric substrates; Gallium arsenide; MIM capacitors; Microstrip; Silicon; Ultra wideband technology;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985585
