Title :
A Monolithic, Port-Interchanged Rat-Race Hybrid using a Thin Film Microstrip Line Crossover
Author :
Nakamoto, Hiroyuki ; Tokumitsu, Tsuneo ; Aikawa, Masayoshi
Author_Institution :
ATR: Advanced Telecommunications Research Institute International Optical and Radio Communications Research Laboratories, Sanpeidani, Inuidani, Seika-cho, Soraku-gun, Kyoto 619-02, JAPAN
Abstract :
A very small, port-interchanged MMIC rat-race hybrid using a crossover structure of multilayer thin film microstrip lines is proposed for highly flexible and miniaturized function blocks such as balanced mixers, frequency doublers and modulators. A 20-GHz-band rat-race hybrid with output ports on the other side of the hybrid from the input ports is designed and fabricated in a 0.7mm×0.7mm chip. This new circuit configuration will drastically improve the design flexibility and performance of MMICs.
Keywords :
Capacitance; Dielectric films; Dielectric substrates; Dielectric thin films; Gallium arsenide; MMICs; Microstrip; Nonhomogeneous media; Strips; Transistors;
Conference_Titel :
Microwave Conference, 1989. 19th European
Conference_Location :
London, UK
DOI :
10.1109/EUMA.1989.333982
