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Front-end arrangements for multiband multimode communication engines

  • US 6,990,357 B2
  • Filed: 10/17/2003
  • Issued: 01/24/2006
  • Est. Priority Date: 10/17/2003
  • Status: Active Grant
First Claim
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1. A receive front-end module for use in conjunction with a transceive front-end module in a multi-band communication device, the communication device having at least a first antenna and a second antenna electrically separated from the first antenna, wherein the transceive front-end module comprises a plurality of signal paths operatively connected to the first antenna for transmitting signals in at least a first transmit frequency band and a different second transmit frequency band, said receive front-end module comprising:

  • a feed point, operatively connected to the second antenna for receiving communication signals in the communication device; and

    a plurality of receive signal paths, operatively connected to the feed point for receiving communication signals in a plurality of frequency bands, wherein said plurality of frequency bands includes at leasta first receive frequency band, which is partially overlapped with the first transmit frequency band in the transceive front-end module, anda second receive frequency band, which is spaced from the first receive frequency band in frequency.

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