Method and arrangement for performing analog signal...

Details Method and arrangement for performing analog signal... Method and arrangement for performing analog signal...

2005-11-03

2009-11-17

Nguyen, Duc (Department: 2618)

Telecommunications

Transmitter

With variation of antenna impedance or dimension for modulation

C375S300000

Reexamination Certificate

active

07620376

ABSTRACT:
A method and arrangement is shown for performing analog signal processing tasks like impedance matching, phase shifting, and/or signal filtering on a signal path from a signal source to a load so that a number of electrical components is smaller than that of solutions according to prior art for performing corresponding analog signal processing tasks. The signal source can be e.g. a power amplifier of a transmitter and the load can be e.g. an antenna of the transmitter. A solution is shown in which a same ninety degree phase shifter element (910) is used for performing more than one of the analog signal processing tasks of the kind mentioned above.

REFERENCES:
patent: 6317608 (2001-11-01), Glocker
patent: 2003/0111997 (2003-06-01), McMorrow
patent: 2004/0127178 (2004-07-01), Kuffner
patent: 2006/0105723 (2006-05-01), Anvari
patent: 03/043207 (2003-05-01), None
patent: WO 03/043207 (2003-05-01), None

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