Co-planar and microstrip waveguide bandpass filter

Details Co-planar and microstrip waveguide bandpass filter Co-planar and microstrip waveguide bandpass filter

1993-09-24

1995-10-24

Pascal, Robert J.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333238, H01P 120

Patent

active

054613523

ABSTRACT:
A bandpass filter for the transmission of signals within a predetermined frequency bandwidth having a center frequency, which provides for substantial attenuation of the harmonic components of the center frequency of the filter. The bandpass filter includes at least one resonator comprising a strip conductor and a ground conductor formed on the surface of a dielectric substrate. The strip conductor is capacitively coupled to the ground conductor so as to substantially transmit the harmonic components of the center frequency of the filter to ground.

REFERENCES:
patent: 2760169 (1956-08-01), Engelmann
patent: 4012705 (1977-03-01), Prevot
patent: 4266206 (1981-05-01), Bedard et al.
patent: 4578656 (1986-03-01), Lacour et al.
patent: 4835499 (1989-05-01), Pickett
patent: 5142255 (1992-08-01), Chang et al.
patent: 5192926 (1993-03-01), Sogo et al.
S. Toyoda, "Variable Bandpass Filters Using Varactor Diodes", IEEE Transactions on Microwave Theory and Techniques, vol. 29, No. 4 at 356-363, (Apr. 1981).

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