Telecommunications – Transmitter and receiver at same station – Radiotelephone equipment detail
Patent
1996-08-07
1998-08-11
Vo, Nguyen
Telecommunications
Transmitter and receiver at same station
Radiotelephone equipment detail
455301, 361814, H04B 140
Patent
active
057941599
ABSTRACT:
A multi-mode radiotelephone (10) includes at least one antenna (12) for transmitting and receiving RF signals within at least two frequency bands. The radiotelephone also includes a first receiver (30, 34) having an input coupled to the antenna for amplifying and down-converting RF signals within a first frequency band and a second receiver (30a, 34a) having an input coupled to the antenna for amplifying and down-converting RF signals within a second frequency band. The radiotelephone further includes a first transmitter (44, 46, 48) having an output coupled to the antenna for up-converting and amplifying RF signals within the first frequency band and a second transmitter (44a, 46a, 48a) having an output coupled to the antenna for up-converting and amplifying RF signals within the second frequency band. In accordance with this invention the first receiver and the second transmitter are disposed within a first circuit package (29a), and the second receiver and the first transmitter are disposed within a second circuit package (29b). The first and second circuit packages may be integrated circuits or hybrid (e.g., thick or thin film) circuits.
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Kincaid Lester G.
Nokia Mobile Phones Limited
Vo Nguyen
LandOfFree
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