Impedence-matched transmitting device having high...

Details Impedence-matched transmitting device having high... Impedence-matched transmitting device having high...

2006-03-14

2006-03-14

Urban, Edward F. (Department: 2685)

Telecommunications

Transmitter

With variation of antenna impedance or dimension for modulation

C455S121000, C455S126000, C343S852000, C343S860000

Reexamination Certificate

active

07013114

ABSTRACT:
According to the present invention, the resistance to interference of a transmitting device, which is particularly embodied as a high frequency transmitter with a transmitter amplifier may be improved, whereby a loss-affected network, for example, in the form of a matching resistance, is coupled to the output of the transmitter amplifier, particularly in the case of low output power of the transmitter amplifier, in order to introduce an impedance-matching at the output of the transmitter amplifier. As such, the reflection of an interference signal coming from a transmitter antenna at the output of the transmitter amplifier can thus be reduced.

REFERENCES:
patent: 5768690 (1998-06-01), Yamada et al.
patent: 5909643 (1999-06-01), Aihara
patent: 6034999 (2000-03-01), Kirisawa
patent: 0 741 463 (1996-11-01), None
patent: 0 936 745 (1999-08-01), None

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