Title :
NRD guide couplers combined with microwave integrated circuits in side-by-side alignment
Author :
Goi, T. ; Kawasaki, S. ; Itoh, T. ; Yoneyama, T.
Author_Institution :
Dept. of Commun. Eng., Tokai Univ., Kanagawa, Japan
Abstract :
This paper describes a hybrid integration technologies with an NRD guide and planar circuits. The proposed circuit is a coupler which consists of two NRD guide dielectric rods attached to a microstrip line planar circuit in the rod side wall. A leakage signal from one NRD guide can travel to the other NRD guide through a surface wave propagating in the coupler planar circuit. The coupling at 9.86 GHz was improved by 20.1 dB using a tapered microstrip line and amplified to 27.2 dB by the FET planar circuit, compared with the NRD coupler with a simple planar dielectric slab.
Keywords :
hybrid integrated circuits; integrated circuit technology; microstrip circuits; microwave integrated circuits; nonradiative dielectric waveguides; waveguide couplers; 9.86 GHz; FET planar circuit; NRD guide couplers; coupler planar circuit; hybrid MIC; hybrid integration technology; microstrip planar circuit; microwave integrated circuits; side-by-side alignment; surface wave propagation; tapered microstrip line; Active circuits; Couplers; Coupling circuits; Dielectric substrates; Electromagnetic coupling; Microstrip; Microwave circuits; Microwave integrated circuits; Millimeter wave technology; Surface waves;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700613
