Signal testing system

Details Signal testing system Signal testing system

2008-07-01

2008-07-01

Feild, Joseph (Department: 2617)

Telecommunications

Radiotelephone system

Zoned or cellular telephone system

C455S424000, C455S425000, C455S067110, C455S067140

Reexamination Certificate

active

07395060

ABSTRACT:
A signal testing system is disclosed, which is capable of achieving a bi-directional wireless transmission measurement enabling mutual testing between device-under-tests and reference devices by configuring a symmetrical structure with circulators and multiplexers. Moreover, the signal testing system not only is capable of fetching signal out of a test path by the use of power dividers and then transmitting the fetched signal to a signal analyzer to be analyzed so as to enable the system to support multiple testing, but also is capable of generating a signal used for referencing by a signal synthesizer so as to enable the system to support numerous tests. In addition, both the signal analyzer and the signal synthesizer have a switch control integrated therein, which enables the signal analyzer to perform analysis on signals of different frequency bandwidth, and enables the signal synthesizer to generate signals of different frequency bandwidth as require.

REFERENCES:
patent: 5487069 (1996-01-01), O'Sullivan
patent: 6741640 (2004-05-01), Johnson
patent: 7155216 (2006-12-01), Kiukkonen et al.

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