Title :
Unilateral microstrip balanced and doubly balanced mixers
Author :
Knochel, R. ; Mayer, B. ; Goebel, U.
Author_Institution :
Tech. Univ., Hamburg-Harburg, West Germany
Abstract :
Approaches to the unipolar realization of balanced and doubly balanced microstrip mixers are discussed. Several novel mixer designs are presented which can be used for miniaturization or for broadbanding the performance, using simple, noncritical branchline structures. The feasibility of the structures is verified experimentally. Relative bandwidths up to approximately 45% are reached easily. Doubly and singly balanced mixers worked equally well, with low conversion loss and noise figure across the whole X-band.<>
Keywords :
mixers (circuits); solid-state microwave circuits; strip line components; SHF; X-band; branchline structures; broadbanding; doubly balanced mixers; low conversion loss; low noise figure; microstrip mixers; microwave circuits; miniaturization; singly balanced mixers; unilateral microstrip; unipolar realization; Coupling circuits; Diodes; Guidelines; Impedance matching; Joining processes; Microstrip; Microwave Theory and Techniques Society; Radio frequency; Signal design; Strips;
Conference_Titel :
Microwave Symposium Digest, 1989., IEEE MTT-S International
Conference_Location :
Long Beach, CA, USA
DOI :
10.1109/MWSYM.1989.38952
