Title :
High isolation sub-harmonic mixer
Author :
Dias, A. C Azevedo ; Consonni, D. ; Luqueze, M.A.
Author_Institution :
Escola Politecnica, Sao Paulo Univ., Brazil
Abstract :
A thin-film prototype of a sub-harmonic diode up-converter mixer has been developed, in order to investigate the potential for achieving high 2LO to RF isolation at the circuit output port. The design, centered at 5.5 GHz LO frequency, associated with 850 MHz IF, included diode parameter extraction and simulation of the proposed circuit topology. Measured conversion losses at (2LO-IF) and (2LO+IF) show good agreement with simulated figures, and a 2LO-RF isolation higher than 50 dB was achieved
Keywords :
Schottky diode mixers; hybrid integrated circuits; losses; microstrip circuits; microwave integrated circuits; microwave mixers; thin film circuits; 2LO-RF isolation; 5.5 GHz; 850 MHz; LO frequency; MIC; RF isolation; SHF; beam-lead Schottky diodes; circuit output port; conversion losses; diode parameter extraction; diode up-converter mixer; high isolation mixer; sub-harmonic mixer; thin-film prototype; Band pass filters; Circuit simulation; Diodes; Isolation technology; MMICs; Microstrip; Mixers; Prototypes; Radio frequency; Thin film circuits;
Conference_Titel :
Microwave and Optoelectronics Conference, 1999. SBMO/IEEE MTT-S, APS and LEOS - IMOC '99. International
Conference_Location :
Rio de Janeiro
Print_ISBN :
0-7803-5807-4
DOI :
10.1109/IMOC.1999.866139
