Differential radio

Details Differential radio Differential radio

2006-04-18

2006-04-18

Kuntz, Curtis (Department: 2643)

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

C455S323000, C333S133000

Reexamination Certificate

active

07031689

ABSTRACT:
A cellphone handset may be excited in a completely differential mode. The antenna, e.g. a simple dipole or a minimal Yagi-Uda with a reflector, may be printed into the printed circuit board. A differential duplexer may be implemented using FBAR technology. The LNA (Low Noise Amplifier) and the PA (Power Amplifier) can both be differential.

REFERENCES:
patent: 6075495 (2000-06-01), Podgorski
patent: 6134453 (2000-10-01), Sainton et al.
patent: 6407649 (2002-06-01), Tikka et al.
patent: 6721544 (2004-04-01), Franca-Neto
patent: 2002/0153965 (2002-10-01), Ruby et al.
McNamar D, FBAR Technology Shrinks CDMA Handset Duplexers, Sep. 2000, Microwaves and RF, p. 71-79.

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