Harmonic Filtering for an Up-Converting, Voltage Mode, Passive Mixer
AssigneeST-Ericsson SA
InventorAndreas AXHOLT
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Abstract
Disclosed herein is a passive, voltage mode transmitter assembly and method of operation. The passive, voltage mode transmitter assembly comprises a baseband filter configured to filter a source baseband signal, a harmonics filter, connected to the baseband filter, configured to remove harmonics from the filtered, source baseband signal, a passive, voltage mode mixer, connected to the harmonics filter, configured to up-convert an output of the harmonics filter to a radio signal, and a power amplifier, connected to the passive, voltage mode mixer, configured to amplify the radio signal.
Claims15
A passive, voltage mode transmitter assembly comprising:
- a baseband filter configured to filter a source baseband signal;
- a passive, voltage mode mixer, connected to said harmonics filter, configured to up-convert said filtered, source baseband signal to a radio signal;
- a harmonics filter, connected between said baseband filter and said passive, voltage mode mixer, configured to remove harmonics from said radio signal;
- and
- a power amplifier, connected to said passive, voltage mode mixer, configured to amplify said radio signal.
A method for transmitting a radio signal in a passive voltage mode transmitter assembly, the method comprising:
- performing an initial filtering of a source baseband signal using a baseband filter;
- up-converting said filtered source baseband signal using a passive, voltage mode mixer to generate a radio signal;
- performing a further filtering, using a harmonics filter connected between the baseband filter and the passive, voltage mode mixer, to remove harmonics from said radio signal;
- and
- amplifying said radio signal.
Dependencies are inferred from the claim text.