Title :
A new coplanar waveguide/slotline double-balanced mixer
Author_Institution :
Avantek Inc., Milpitas, CA, USA
Abstract :
A novel design concept for a broadband planar mixer, using single-sided substrate processing, is presented. Through the use of a diode crossover quad and coplanar waveguide/slotline baluns, the need for via holes and back metallization has been eliminated. The design offers a potential reduction in production costs compared to other mixer types. The planar construction is highly reliable and lends itself to modular MIC (microwave integrated circuit) applications. A sample mixer operating at 6-18 GHz with a fixed IF (intermediate frequency) of 1 GHz demonstrates a 5.0- to 8.5-dB conversion loss.<>
Keywords :
microwave integrated circuits; mixers (circuits); waveguide components; 5 to 8.5 dB; 6 to 18 GHz; broadband planar mixer; conversion loss; coplanar waveguide/slotline baluns; coplanar waveguide/slotline double-balanced mixer; diode crossover quad; intermediate frequency; modular microwave IC; single-sided substrate processing; Coplanar waveguides; Costs; Diodes; Impedance matching; Metallization; Microwave integrated circuits; Mixers; Modular construction; Production; Slotline;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38883
