公开(公告)号：EP0846366A1

公开(公告)日：1998-06-10

申请号：EP96928946.0

申请日：1996-08-21

申请人： ERICSSON INC.

发明人： LI, Leo, L. ,  GLAZEBROOK, Ellis

IPC分类号： H01P5 ,  H03D9 ,  H03D7

CPC分类号： H01P5/10 ,  H03D7/1408 ,  H03D9/0633 ,  H03D2200/0023 ,  H03D2200/0088

摘要： A double-double-balanced mixer includes first and second radio frequency baluns and first and second local oscillator baluns formed on a dielectric substrate and connected to two diode rings. An intermediate frequency port is also connected to two diode rings. The particular dimensions of the stripline mixer are carefully selected to provide high dynamic range, strong suppression of intermodulation products, low conversion loss, and low local oscillator input power. The specific design dimensions of the mixer are selected contrary to conventional mixer design principle. For example, the local oscillator and radio frequency balun microstrips are designed to have a length which is considerably less than one-quarter wavelength of the LO and RF frequencies.