Patent attributes
A variable bandwidth receiver uses allocated bandwidth more efficiently and ensures that blocking signals do not overload receiver components. The receiver includes multiple branches for receiving a first bandwidth signal. Each receiver branch has a filter for passing signals in a frequency band corresponding to a second bandwidth less that the first bandwidth and an analog-to-digital converter for converting the baseband signal into a digital signal. A controller digitally combines the digital signals from two or more of the receiver branches to produce a received signal having a bandwidth substantially wider than the first bandwidth. Because combining is done after analog-to-digital conversion in the digital domain, the controller can combine the digital signals from two or more of the receiver branches having adjacent corresponding frequency bands without the normal guard band separating them.
