Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1992-02-13
1994-01-11
Lee, Benny
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333110, 333116, H01P 1203
Patent
active
052785297
ABSTRACT:
A broadband microstrip filter structure employs a first transmission line which basically consists of a series of capacitor plates which extend between a dielectric layer from a first location to a second location and each of the series of plates are connected together with a top plate on the top surface of the dielectric and a bottom plate located a given distance beneath the dielectric layer. A second transmission line alternates between the top and bottom layers of the dielectric and consists of a second series of capacitive plates whereby each capacitor is connected to an adjacent capacitor with the top plate of the first connecting to the bottom plate of the second and the bottom plate of the first connecting to the top plate of the second and so on. This pattern is repeated so that the conductor path alternates from the top to the bottom plate. Various capacitors are selected to provide predetermined length resonators while various other capacitors are provided to provide coupling sections. In this configuration each of the above-noted lines provide switching from the top to the bottom so that each conductor averages the same distance from the ground plane insuring identical impedances in each line. The structure allows tight coupling and enables the even and odd mode phase velocity differences to be compensated for due to the fact that the odd mode travels between the two conductors and the even mode travels between the conductor and the ground plane. In this manner the odd mode travels faster but further, thus the even mode and the odd mode move down the structure in synchronism.
REFERENCES:
patent: 4001730 (1977-01-01), Spinner
patent: 4482873 (1984-11-01), Nyhus
patent: 4532484 (1985-07-01), Tajima
patent: 4967171 (1990-10-01), Ban et al.
Hogan Patrick M.
ITT Corporation
Lee Benny
Plevy Arthur L.
LandOfFree
Broadband microstrip filter apparatus having inteleaved resonato does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Broadband microstrip filter apparatus having inteleaved resonato, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Broadband microstrip filter apparatus having inteleaved resonato will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1633929