Design of Wide-Band Branch-Line Coupler in the G-Frequency Band
- Resource Type
- Conference
- Authors
- Prigent, G.; Rius, E.; Happy, H.; Blary, K.; Lepilliet, S.
- Source
- 2006 IEEE MTT-S International Microwave Symposium Digest Microwave Symposium Digest, 2006. IEEE MTT-S International. :986-989 Jun, 2006
- Subject
- Fields, Waves and Electromagnetics
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Aerospace
Communication, Networking and Broadcast Technologies
Photonics and Electrooptics
Wideband
Couplings
Millimeter wave technology
Frequency
Network topology
Transistors
Microstrip
Attenuation
Bandwidth
Transmission line measurements
Branch-line coupler
Wide-band
G-Band
Thin-Film Microstrip technology
BCB-based technology
- Language
- ISSN
- 0149-645X
This paper deals with the design of broadband hybrid coupler in Thin Film Microstrip (TFMS) technology for millimeter-wave applications in the G-band frequency range. The couplers to be designed are realized in BCB-based technology. The technological process as well as transmission lines characterization and optimization in term of attenuation are described. Classical 3-dB branch-line coupler is developed with 180-GHz central frequency. Then, based on this topology, a broadband coupler using series matching networks is developed. Such a topology allows to reach bandwidth over 50%, with very flat coupling. Measurements performed in a wide frequency range up to 220 GHz attest from the design accuracy as well as the technological process quality.