Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Reexamination Certificate
2006-03-28
2006-03-28
Deb, Anjan (Department: 2858)
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
C324S642000
Reexamination Certificate
active
07019510
ABSTRACT:
A handheld Vector Network Analyzer (VNA) is provided with circuitry capable of providing operation over a very wide bandwidth. The VNA includes two reflectometers, a first high frequency reflectometer (150) such as the model S331 Site Master™ and a second lower frequency reflectometer (50) such as the model S820 Site Master™, both the S331 and S820 being manufactured by Anritsu Company of Morgan Hill Calif. The high frequency reflectometer (150) includes a forward coupler (109) having a coupling path connected to a high frequency impulse signal source (102), and a through path connecting the test port (3) and incident and reflected signal measurement couplers (110,112) to a load (107). To connect the high and low frequency reflectometers (150,50), a diplexer (170) is connected between the load (107) and an output of the low frequency reflectometer (50). The diplexer (170) includes an inductor (172) for blocking high frequency signals from the low frequency reflectometer (50), and a capacitor (174) preventing a low frequency signal path through the load (107) to ground while providing an impedance matching the load (107) to high frequency signals.
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Anritsu Company
Deb Anjan
Fliesler & Meyer LLP
Nguyen Hoai-An D.
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