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US 2007/0182481 A1Published application
Distributed amplifier with built-in filtering functions
AssigneeUniversity of Rochester
InventorsHui Wu, Yunliang Zhu
Life of this patent
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Abstract
A distributed amplifier uses non-uniform filtering structures to provide better control over pass-band and stop-band characteristics. The various sections can have different tap coefficients. A notch filter can be implemented for interference suppression or pulse shaping in an ultra-wideband transceiver.
Claims20
A distributed amplifier comprising:
- a gate line for propagating an input signal;
- a drain line for propagating an output signal;
- and
- a plurality of filter elements, in spaced relation along the gate line and the drain line, for receiving the input signal, filtering the input signal to output filtered signals, and outputting the filtered signals to the drain line, wherein the plurality of filter elements have a plurality of different filtering characteristics.
1 more element
A method for designing and manufacturing a distributed amplifier comprising:
- a gate line for propagating an input signal;
- a drain line for propagating an output signal;
- and
- a plurality of filter elements, in spaced relation along the gate line and the drain line, for receiving the input signal, filtering the input signal to output filtered signals, and outputting the filtered signals to the drain line, wherein the plurality of filter elements have a plurality of different filtering characteristics;
- the method comprising:
- (a) selecting a desired frequency response for the distributed amplifier;
- (b) selecting the plurality of filtering characteristics which provide the desired frequency response;
- and
- (c) manufacturing the distributed amplifier to have the desired frequency response.
6 more elements
A transceiver comprising:
- an antenna;
- a signal processor;
- and
- circuitry connecting the antenna with the signal processor, the circuitry comprising a distributed amplification filter, the distributed amplifier comprising:
- a gate line for propagating an input signal;
- a drain line for propagating an output signal;
- and
- a plurality of filter elements, in spaced relation along the gate line and the drain line, for receiving the input signal, filtering the input signal to output filtered signals, and outputting the filtered signals to the drain line, wherein the plurality of filter elements have a plurality of different filtering characteristics.
5 more elements
Dependencies are inferred from the claim text.