Title :
A passive-type even harmonic quadrature mixer using simple filter configuration for direct conversion receiver
Author :
Shimozawa, M. ; Katsura, T. ; Suematsu, N. ; Itoh, K. ; Isota, Y. ; Ishida, O.
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kanagawa, Japan
Abstract :
A passive-type even harmonic quadrature mixer using simple filter configuration for direct conversion receiver is presented. All circuits in the mixer are composed of passive elements. Diplexers of this mixer consist of simple high pass and low pass filters enough to realize a mixer with small size. This mixer is suitable for a mobile handset, because no DC consumption is required and it is easy to design and manufacture from its simple configuration. A developed mixer achieved good RF characteristics for direct conversion receivers.
Keywords :
UHF filters; UHF mixers; high-pass filters; low-pass filters; mobile radio; passive networks; radio receivers; 2 GHz; anti-parallel diode pair; diplexers; direct conversion receiver; even harmonic quadrature mixer; filter configuration; high pass filters; low pass filters; mobile handset; passive elements; passive-type mixer; Bandwidth; Circuits; Degradation; Information filtering; Information filters; Low pass filters; Manufacturing; Mobile handsets; Power harmonic filters; Radio frequency;
Conference_Titel :
Microwave Symposium Digest. 2000 IEEE MTT-S International
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-5687-X
DOI :
10.1109/MWSYM.2000.861100
