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US 2006/0141976 A1Published application
Passive reflection mixer
AssigneeSynergy Microwave Corporation
InventorsUlrich Rohde, Antonio Almeida, Ajay Poddar, Vaseem Ahmed, Nikolay IIkov, Klaus Schoepf
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Abstract
In one aspect, a mixer that provides improved isolation between an input oscillator and a mixing cell. In another aspect, a mixer that includes circuitry operative to shape an input signal provided by a local oscillator.
Claims29
A mixer, comprising:
- a first input port for receiving a first input signal from a local oscillator;
- a mixing cell for combining the first input signal with a second input signal to produce an output signal;
- and
- first circuitry coupled between the mixing cell and the first input port for shaping the first input signal.
1 more element
A mixer, comprising:
- a first input port for receiving a first input signal from a local oscillator;
- a second port for connecting to a radio frequency source or sink;
- a third port for connecting to an intermediate frequency source or sink;
- and
- switching circuitry coupled to the first input port through a coupling element such that the local oscillator is isolated from the second and third port.
2 more elements
An information communication apparatus, comprising:
- means for transmitting or receiving information communicated over a network, said means for transmitting or receiving including a mixer comprising,
- a first transformer having a first output and a second output, the first output and second output differing in phase by approximately 180 degrees;
- a pulse shaping network coupled to the first and second outputs;
- and
- a mixing cell coupled to the pulse shaping network, the mixing cell comprising at least two FETS whose gate terminals are each coupled to the pulse shaping network.
2 more elements
Dependencies are inferred from the claim text.