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Heikkila ; Pekka
Oulu, FI
No. of patents:

Patent Number Title Of Patent Date Issued
5757247 Device and method for tuning a band-pass filter utilizing mixing results with DC component remov May 26, 1998
A device and a method for adjusting a bandpass filter, especially a combiner filter. The method includes deriving an RF sample signal proportional to the power of a modulated RF signal which is one of: passing forward to the bandpass filter, reflected from the input of the bandpass f
5638034 Method and arrangement for tuning a combiner filter June 10, 1997
Tuning a combiner filter, which includes two separate tuning modes: coarse adjustment applied when the combiner is taken into use by utilizing a measuring branch for forward power and a coarse measuring branch for reflected power; and fine adjustment applied in continuous operation by
5525940 Device and method for tuning a combiner filter June 11, 1996
A device for tuning a combiner filter. The measuring signals (P.sub.rl . . . P.sub.rn, P.sub.F1 . . . P.sub.Fn) of a number of different combiner filters are multiplexed to the same detectors. Multiplexing allows the measuring and adjusting electronics required by the tuning and adjustin

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