Patent ID: 7102465

Claim:
A filter apparatus comprising: an inductive (“L”)-capacitive (“C”) filter (LC filter) comprising: at least one inductive (“L”) bank comprising a plurality of inductors; at least one capacitive (“C”) bank comprising a plurality of capacitors; and a plurality of semiconductor switches, coupled to said L bank and said C bank for enabling at least one inductor from said L bank to produce an inductance value and at least one capacitor from said C bank to produce a capacitance value, wherein each enabled switch introduces a resistance value that affects a Q factor of the LC filter; and a tuning circuit configured for selectively enabling said switches to select a particular combination of inductance and capacitance values that maximizes a Q factor for said LC filter that is produced by enabling a particular combination of inductors from the L bank and enabling a particular combination of capacitors from the C bank that maximizes the Q factor of the LC filter.