Network analyzer comprising a switchable measuring bridge

Details Network analyzer comprising a switchable measuring bridge Network analyzer comprising a switchable measuring bridge

2011-04-05

2011-04-05

Dole, Timothy J (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S076770, C324S076230, C702S106000, C702S117000, C702S120000

Reexamination Certificate

active

07919969

ABSTRACT:
The invention relates to a network analyzer comprising a signal generator for generating an excitation signal which can be supplied to a measuring object connectable to a network analyzer by means of a measuring line, and a measuring bridge which is connected to the measuring line by means of signal transmission. A reference signal corresponding to the excitation signal can be extracted from a reference channel, and a measuring signal corresponding to a signal corresponding to a signal reflected from the measuring object can be extracted from a measuring channel. the measuring bridge comprises a resistive bridge and at least one hybrid coupler which is connected to the resistive bridge in series. the measuring bridge is operated as a resistive bridge in a low frequency range and as a hybrid coupler in a upper frequency range.

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