Transceiving system and compound filter

Details Transceiving system and compound filter Transceiving system and compound filter

2011-07-19

2011-07-19

Le, Dinh T. (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

C327S552000, C327S558000, C327S559000, C455S073000

Reexamination Certificate

active

07982533

ABSTRACT:
A transceiving system utilizing a shared filter module is provided. The shared filter module is selectively filtering signals in a first band in a first mode and a second band in a second mode. The first mode is a receiver mode whereas the second mode is a transmission mode. The shared filter module comprises a compound filter comprising two low pass filters and a coupling controller to manage input and output wiring of the low pass filters. When the coupling controller is enabled in the first mode, the compound filter acts as a bandpass filter. When the coupling controller is disabled, the compound filter acts as two independent low pass filters.

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English language translation of abstract of CN 1328723 (published Dec. 26, 2001).
English language translation of abstract of CN 1677882 (published Oct. 5, 2005).
“An Integrated 52GHz CMOS T/R Switch with LC-tuned Substrate Bias” Talwalkar, et al., 2003.

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