Frequency conversion system with improved spurious response and frequency agility
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United States of America Patent
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Jan 17, 2017
Grant Date -
Jun 9, 2016
app pub date -
Dec 4, 2014
filing date -
Dec 4, 2014
priority date (Note) -
Withdrawn
status (Latency Note)
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Abstract
A frequency conversion system with improved performance. In one embodiment an image reject mixer is used to perform frequency conversion providing an initial degree of suppression of the image and local oscillator leakage signals, and a signal to noise enhancer (SNE) is used to further suppress the image and local oscillator signals, the signal to noise enhancer being a nonlinear passive device that attenuates low-power signals while transmitting high power signals with little loss. The signal to noise enhancer may be fabricated as a thin film of yttrium iron garnet (YIG) epitaxially grown on a gadolinium gallium garnet (GGG) substrate, the GGG substrate secured to a microwave transmission line from the input to the output of the signal to noise enhancer, such that the thin film of yttrium iron garnet is close to the transmission line.
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International Classification(s)
- 2014 Application Filing Year
- H04L Class
- 29135 Applications Filed
- 23333 Patents Issued To-Date
- 80.09 % Issued To-Date
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- H04L Class
- 0 % this patent is cited more than
- 9 Age
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