High-dynamic-range ultra wide band transceiver
OwnerBjorn Bjeredeinventor
Life of this patent
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Abstract
An UWB Transceiver for Multi-Band OFDM communication including an antenna switch (342), a receive front end and down-converter (303), an up-converter and power amplifier (305), and a frequency synthesizer (211). The transceiver achieves high dynamic range by employing a synthesizer (211) with very low spurious components and a receive front end with an efficient receive RF filtering embodiment. The synthesizer (211) may rapidly switch frequencies in a manner that minimizes spurious components outside the band group used for communication. The receiver (200) also achieves high selectivity and sensitivity by dividing the receive signal path into even and odd band groups.
Claims30
A transceiver for radio communication over at least three, equally spaced bands, the transceiver comprising:
- a frequency synthesizer for creating a local oscillator (“LO”) for each of the at least three bands, the synthesizer including:
- means for generating a first LO for one of the at least three bands;
- means for generating a second LO set to the spacing between two adjacent bands of the at least three bands;
- and
- means for combining the first LO and the second LO to generate a LO for each of the at least three bands.
A method of transceiving radio communication over at least three, equally spaced bands, the method comprising:
- generating a first LO for one of the at least three bands;
- generating a second LO set to the spacing between two adjacent bands of the at least three bands;
- and
- combining the first LO and the second LO to generate a LO for each of the at least three bands.
An article of manufacture for use in transceiving radio communication over at least three, equally spaced bands, the article of manufacture comprising computer readable storage media including program logic embedded therein that causes control circuitry to perform:
- generating a first LO for one of the at least three bands;
- generating a second LO set to the spacing between two adjacent bands of the at least three bands;
- and
- combining the first LO and the second LO to generate a LO for each of the at least three bands.
Dependencies are inferred from the claim text.