Title: Single sideband mixer
Application Number: 00810317 Application Date: 2000.05.12
Publication Number: 1360752 Publication Date: 2002.07.24
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: H03C1/60;H03D7/16
Applicant(s) Name: Marconi Communications GmbH Address:
Inventor(s) Name: H. Gill;G. Gerhard;S. Koch
Attorney & Agent: zheng lizhu
Abstract:
    The invention relates to a single sideband mixer for radio frequency signals which can be integrated on a uniform semiconductor substrate in a space-saving manner. The inventive single sideband mixer comprises two double-sideband mixers (3) which are switched with identical first signals and with phase quadrature second signals in order to form a product signal from the two signals. The single sideband mixer also comprises an adder (7) for superimposing the two product signals to form an output signal with a sideband. An amplifier (1) is connected in incoming circuit to each mixer (3) in order to generate the first signal, and the amplifiers (1) have inputs which are connected to the same signal source via a forked line (11). The signal source of the amplifiers (1) can be a pre-amplifier or can be an input of the single sideband mixer directly.
Time: 17