Wave transmission lines and networks – Coupling networks – Wave filters including long line elements
Patent
1995-12-18
1997-11-25
Lee, Benny
Wave transmission lines and networks
Coupling networks
Wave filters including long line elements
333205, 455307, H01P 1203
Patent
active
056916760
ABSTRACT:
Strip line filter, receiver with strip line filter and method of tuning the strip line filter. In ceramic filters for frequencies from 1 to 2 GHz, strip line resonators lying in one plane and coupled via the side are currently used in the state of the art. For reducing the attenuating effect of such a filter in the passband, the strip line resonators are arranged in two different planes and coupled via the broad side.
REFERENCES:
patent: 4157517 (1979-06-01), Kneisel et al.
patent: 4612689 (1986-09-01), De Wild et al.
patent: 5311159 (1994-05-01), Miura et al.
patent: 5323391 (1994-06-01), Harrison
"Microwave Filters, Impedance Matching Networks and Coupling Structures", by G.L. Matthaei et al, McGraw-Hill Co., 1964, pp. 217-229.
"Rectangular Bars Coupled Through a Finite-Thickness Slot", by J.H. Cloete, IEEE Transactions on Microwave Theory and Techniques, vol. MTT-32, No. 1, Jan. 1984, pp. 39-46.
De Jongh Franciscus H.A.
Jedeloo Pieter W.
Snel Jan
Van De Acker-veken Antonius C.J.C.
Haken Jack E.
Lee Benny
Summons Barbara
U.S. Philips Corporation
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