Wave transmission lines and networks – Coupling networks – Frequency domain filters utilizing only lumped parameters
Patent
1999-02-22
2000-08-15
Pascal, Robert
Wave transmission lines and networks
Coupling networks
Frequency domain filters utilizing only lumped parameters
333204, 330286, 330302, H03H 700
Patent
active
061042595
ABSTRACT:
Disclosed herein is a harmonic suppression circuit having a first microstrip line and a second microstrip line each having the same characteristic impedance. One end of the first microstrip line is electrically connected to a transmission line over which a signal having a predetermined frequency is transmitted, and one end of the second microstrip line is grounded. The length of the first microstrip line and the length of the second microstrip line are respectively set to the length corresponding to 1/8 of the wavelength with respect to the predetermined frequency. Series impedance means comprised of capacitance means and inductance means is electrically connected between the other end of the first microstrip line and the other end of the second microstrip line. The reactance of the capacitance means and the reactance of the inductance means at the predetermined frequency are respectively set to 3/4 of the characteristic impedance of each microstrip line.
Alps Electric Co. ,Ltd.
Glenn Kimberly
Pascal Robert
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