Method for tuning a radio filter, a radio filter and a...

Details Method for tuning a radio filter, a radio filter and a... Method for tuning a radio filter, a radio filter and a...

2006-04-04

2006-04-04

Ham, Seungsook (Department: 2817)

Wave transmission lines and networks

Automatically controlled systems

C455S125000

Reexamination Certificate

active

07023293

ABSTRACT:
The present invention relates to a method for tuning a radio filter. The filter comprises an input connection, an output connection and at least two resonator modules coupled in cascade, each having a tuning mechanism and a probe. A first resonator module is connected to the input connection and a final resonator module is connected to the output connection. The filter is adapted to receive at least one signal within a frequency range. The method comprises essentially two steps: coarse tuning, which is dependent on the frequency content of the received signal(s), and fine tuning, which is dependent on a calculated deviation between a set value vector and a measured signal parameter vector. A relationship between the set value vector and the signal parameter vector is established for calculating the deviation. The invention also relates to a radio filter and a system comprising such a radio filter.

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Atia et al, Microwave Symposium Digest 2000 IEEE, pp. 1637-1640 vol. 3, Tuning and measurements of couplings and resonant . . . .

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