Dual band mobile station employing cross-connected transmitter and receiver circuits

Claim 2

A multi-mode radiotelephone comprising a plurality of circuit packages, said multi-mode radiotelephone further comprising: at least one antenna for transmitting and receiving RF signals within at least two frequency bands; a first receiver having an input coupled to said at least one antenna for amplifying and down-converting RF signals within a first frequency band; a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying and down-converting RF signals within a second frequency band; a first transmitter having an output coupled to said at least one antenna for up-converting and amplifying RF signals within the first frequency band; and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for up-converting and amplifying RF signals within the second frequency band; wherein said first receiver and said second transmitter are disposed within a first circuit package, and said second receiver and said first transmitter are disposed within a second circuit package that is different from said first circuit package.

Claim 3

A multi-mode radiotelephone as set forth in claim 1, wherein said first circuit package and said second circuit package are each an integrated circuit package.

Claim 4

A multi-mode radiotelephone as set forth in claim 1, wherein said first circuit package and said second circuit package are each a hybrid circuit package employing at least one of thick film or thin film interconnects.

Claim 5

A multi-mode radiotelephone as set forth in claim 1, and further comprising: a first local oscillator for use with the first frequency band; a second local oscillator for use with the second frequency band; and means for switchably coupling an output of either the first local oscillator or the second local oscillator to the first and second circuit packages.

Claim 6

A multi-mode radiotelephone as set forth in claim 1, and further comprising: a first duplexer for coupling said first receiver and said first transmitter to said at least one antenna; and a second duplexer for coupling said second receiver and said second transmitter to said at least one antenna.

Claim 7

A multi-mode radiotelephone as set forth in claim 1, and further comprising: a first switch means for selectively applying operating power to only one of said first receiver and said second receiver; and a second switch means for selectively applying operating power to only one of said first transmitter and said second transmitter.

Claim 8

A dual mode mobile station comprising a plurality of integrated circuit packages, said dual mode mobile station further comprising: at least one antenna for transmitting and receiving RF signals within at least two frequency bands; a first local oscillator (LO1) for use with a first frequency band (Band1); a second local oscillator (LO2) for use with a second frequency band (Band2); a first receiver having an input coupled to said at least one antenna for amplifying and down-converting RF signals, within Band1, to a Band1 first intermediate frequency (IF1), the first receiver being switchably coupled to an output of LO1 for outputting IF1 to be a difference frequency between the frequency of Band1 and the frequency of LO1; a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying and down-converting RF signals, within Band2, to a Band2 first intermediate frequency (IF2), the second receiver being switchably coupled to an output of LO2 for outputting IF2 to be a difference frequency between the frequency of Band2 and the frequency of LO2; a first transmitter having an output coupled to said at least one antenna for up-converting and amplifying RF signals, within Band1, to a Band1 transmitted frequency (f TX1 ), the first transmitter being switchably coupled to the output of LO1 for outputting f TX1 to be centered on the frequency of LO1; and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for up-converting and amplifying RF signals, within Band2, to a Band2 transmitted frequency (f TX2 ), the first transmitter being switchably coupled to the output of LO2 for outputting f TX2 to be centered on the frequency of LO2; wherein said first receiver and said second transmitter are disposed within a first integrated circuit package, and said second receiver and said first transmitter are disposed within a second integrated circuit package, and wherein said first integrated circuit package is different from said second integrated circuit package.

Claim 9

A dual mode mobile station comprising a plurality of integrated circuit packages, said dual mode mobile station further comprising: at least one antenna for transmitting and receiving RF signals within at least two frequency bands; a first local oscillator (LO1) for use with a first frequency band (Band1); a second local oscillator (LO2) for use with a second frequency band (Band2); a first receiver having an input coupled to said at least one antenna for amplifying and down-converting RF signals, within Band1, to a Band1 first intermediate frequency (IF1), the first receiver being switchably coupled to an output of LO1 for outputting IF1 to be a difference frequency between the frequency of Band1 and the frequency of LO1; a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying and down-converting RF signals, within Band2, to a Band2 first intermediate frequency (IF2), the second receiver being switchably coupled to an output of LO2 for outputting IF2 to be a difference frequency between the frequency of Band2 and the frequency of LO2; a first transmitter having an output coupled to said at least one antenna for up-converting and amplifying RF signals, within Band1, to a Band1 transmitted frequency (f TX1 ), the first transmitter being switchably coupled to the output of LO1 for outputting f TX1 to be centered on the frequency of LO1; and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for up-converting and amplifying RF signals, within Band2, to a Band2 transmitted frequency (f TX2 ), the first transmitter being switchably coupled to the output of LO2 for outputting f TX2 to be centered on the frequency of LO2; wherein said first receiver and said second transmitter are disposed within a first integrated circuit package, and said second receiver and said first transmitter are disposed within a second integrated circuit package, and wherein said first integrated circuit package is different from said second integrated circuit package.

Claim 10

A dual mode mobile station as set forth in claim 7, and further comprising: a first duplexer for coupling said first receiver and said first transmitter to said at least one antenna; and a second duplexer for coupling said second receiver and said second transmitter to said at least one antenna.

Claim 11

A dual mode mobile station as set forth in claim 7, and further comprising: a first switch means for selectively applying operating power to only one of said first receiver and said second receiver; and a second switch means for selectively applying operating power to only one of said first transmitter and said second transmitter.

Claim 12

A dual mode mobile station comprising a plurality of integrated circuit packages, said dual mode mobile station further comprising: at least one antenna for transmitting and receiving RF signals within at least two frequency bands; a first receiver having an input coupled to said at least one antenna for amplifying RF signals, within a first frequency band (Band1), and for outputting a Band1 first intermediate frequency (IF1); a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying RF signals, within a second frequency band (Band2), and for outputting a Band2 first intermediate frequency (IF2); a first transmitter having an output coupled to said at least one antenna for amplifying RF signals and for outputting a Band1 transmitted frequency (f TX1 ); and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for amplifying RF signals and for outputting a Band2 transmitted frequency (f TX2 ); wherein at least a portion of said first receiver and said second transmitter are disposed within a first integrated circuit package, and at least a portion of said second receiver and said first transmitter are disposed within a second integrated circuit package, and wherein said first integrated circuit package is different from said second integrated circuit package.

Claim 13

A dual mode mobile station comprising a plurality of integrated circuit packages, said dual mode mobile station further comprising: at least one antenna for transmitting and receiving RF signals within at least two frequency bands; a first receiver having an input coupled to said at least one antenna for amplifying RF signals, within a first frequency band (Band1), and for outputting a Band1 first intermediate frequency (IF1); a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying RF signals, within a second frequency band (Band2), and for outputting a Band2 first intermediate frequency (IF2); a first transmitter having an output coupled to said at least one antenna for amplifying RF signals and for outputting a Band1 transmitted frequency (f TX1 ); and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for amplifying RF signals and for outputting a Band2 transmitted frequency (f TX2 ); wherein at least a portion of said first receiver and said second transmitter are disposed within a first integrated circuit package, and at least a portion of said second receiver and said first transmitter are disposed within a second integrated circuit package, and wherein said first integrated circuit package is different from said second integrated circuit package.

Claim 14

A multi-band mobile station comprising a plurality of discrete circuit packages and at least one antenna for transmitting and receiving RF signals within at least two frequency bands, said multi-band mobile station further comprising: at least first and second cross-connected transceivers comprised of a first receiver having an input coupled to said at least one antenna for amplifying received RF signals, within a first frequency band (Band1), said first receiver comprising a first down-conversion mixer for down-converting the received RF signals in Band1 and for outputting a Band1 first intermediate frequency (IF1); a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying received RF signals, within a second frequency band (Band2), said second receiver comprising a second down-conversion mixer for down-converting the received RF signals in Band2 and for outputting a Band2 first intermediate frequency (IF2); a first transmitter having an output coupled to said at least one antenna for amplifying RF signals, said first transmitter comprising a first up-conversion mixer for up-converting a first input RF signal and for outputting a Band1 transmitted frequency (f TX1 ); and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for amplifying RF signals, said second transmitter comprising a second up-conversion mixer for up-converting a second input RF signal and for outputting a Band2 transmitted frequency (f TX2 ); wherein at least a portion of said first receiver and said second transmitter, including said first down-conversion mixer and said second up-conversion mixer, are disposed within a first discrete circuit package, and at least a portion of said second receiver and said first transmitter, including said second down-conversion mixer and said first up-conversion mixer, are disposed within a second, different discrete circuit package.

Claim 15

A multi-band mobile station comprising a plurality of discrete circuit packages and at least one antenna for transmitting and receiving RF signals within at least two frequency bands, said multi-band mobile station further comprising: at least first and second cross-connected transceivers comprised of a first receiver having an input coupled to said at least one antenna for amplifying received RF signals, within a first frequency band (Band1), said first receiver comprising a first down-conversion mixer for down-converting the received RF signals in Band1 and for outputting a Band1 first intermediate frequency (IF1); a second receiver, different from said first receiver, having an input coupled to said at least one antenna for amplifying received RF signals, within a second frequency band (Band2), said second receiver comprising a second down-conversion mixer for down-converting the received RF signals in Band2 and for outputting a Band2 first intermediate frequency (IF2); a first transmitter having an output coupled to said at least one antenna for amplifying RF signals, said first transmitter comprising a first up-conversion mixer for up-converting a first input RF signal and for outputting a Band1 transmitted frequency (f TX1 ); and a second transmitter, different from said first transmitter, having an output coupled to said at least one antenna for amplifying RF signals, said second transmitter comprising a second up-conversion mixer for up-converting a second input RF signal and for outputting a Band2 transmitted frequency (f TX2 ); wherein at least a portion of said first receiver and said second transmitter, including said first down-conversion mixer and said second up-conversion mixer, are disposed within a first discrete circuit package, and at least a portion of said second receiver and said first transmitter, including said second down-conversion mixer and said first up-conversion mixer, are disposed within a second, different discrete circuit package.

Claim 16

A multi-band mobile station as set forth in claim 11, wherein said first discrete circuit package and said second discrete circuit package are each comprised of an integrated circuit package.

Claim 17

A multi-band mobile station as set forth in claim 11, wherein said first discrete circuit package and said second discrete circuit package are each comprised of a hybrid circuit package employing at least one of thick film or thin film interconnects.