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US 6,205,324 B1Granted
Broadband double-balanced frequency mixer
AssigneeAgilent Technologies, Inc.
InventorJoel David Bickford
Life of this patent
Estimating the term…
Abstract
The invention provides a broadband double-balanced mixer capable of operating across a range of frequencies from millimeter to microwave. The mixer includes a Wilkinson type splitter.
Claims5
A broadband double-balanced frequency mixer for mixing a broadband RF source signal and a local oscillator signal comprising:
- diode bridge switch means;
- means for coupling the LO signal to the diode bridge switch means;
- first resistor means for splitting the RF source signal, the first resistor means having a relatively constant parallel resistance R/2 to the RF source signal and a relatively constant impedance 2*R to the LO signal in parallel with the diode bridge switch means down to zero frequency;
- the diode switch means mixing the RF source signal and the LO signal to form an IF signal;
- and means for coupling out the IF signal.
2 more elements
Dependencies are inferred from the claim text.