Dispersion compensation technique and apparatus for microwave fi

Details Dispersion compensation technique and apparatus for microwave fi Dispersion compensation technique and apparatus for microwave fi

1996-03-29

1998-04-14

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333212, H01P 1208

Patent

active

057397333

ABSTRACT:
A microwave filter has a plurality of resonant cavities with each cavity containing a dielectric resonator. There are self-equalizing probes or self-equalizing apertures located between some of the cavities. A circulator is connected to an output of the filter. The circulator has an input/output which is connected to an equalizer. The equalizer contains a dielectric resonator that is slightly different from the dielectric resonators of the filter to permit the equalizer to be tuned at a slightly different frequency from the filter. The equalizer and self-equalizing probes or apertures are capable of being operated to reduce a dispersive slope of the filter. The filter can operate in a single mode or a dual mode. The electrical performance of the filter is superior to prior art filters, particularly in the wideband versions because the dispersive slope is reduced.

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Kurzrok; "Amplitude Equalizer is Circulator Coupled"; Microwaves; Sep., 1971; pp. 50-52.
Kudsia et al.; "Innovations in Microwave Filters and Multiplexing Networks for Communications Satellite Systems"; IEEE Transactions on Microwave Theory and Techniques, vol. 40, No. 6; Jun., 1992; pp. 1133-1149.

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