Stripline split ring resonator bandpass filter

Details Stripline split ring resonator bandpass filter Stripline split ring resonator bandpass filter

1990-08-01

1991-10-15

Laroche, Eugene R.

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333219, 455339, H01P 1203, H01P 708

Patent

active

050578030

ABSTRACT:
A stripline split-ring resonator bandpass filter comprises first and second conducting layers and first and second substrates connected to each other between the conducting layers. A first stripline ring resonator is located on the top side of the second nonconducting substrate and is coupled to the input port of the BPF. The first stripline ring resonator has a gap located therein. A second stripline ring resonator is also located on the top side of the second nonconducting substrate between the first stripline ring resonator and the output port of the BPF. The second stripline ring resonator has a gap located therein. The first substrate has at least two slots therein to allow lumped capacitors to be placed in the gaps in the first and second ring resonators.

REFERENCES:
patent: 2608648 (1952-08-01), Magnuski
patent: 3805198 (1974-04-01), Gewartowski et al.
patent: 4406019 (1983-09-01), Ide et al.
patent: 4829594 (1989-05-01), Heck et al.
Makimoto et al., Varactor Tuned Bandpass Filters Using Microstrip-Line Ring Resonators, IEEE MTT-S Digest (1986), at pp. 411-414.

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