Multilayer dielectric evanescent mode waveguide filter utilizing

Details Multilayer dielectric evanescent mode waveguide filter utilizing Multilayer dielectric evanescent mode waveguide filter utilizing

1999-06-11

2000-10-24

Pascal, Robert

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

333203, 333208, H01P 1219

Patent

active

061373834

ABSTRACT:
A multilayer dielectric evanescent mode waveguide bandpass filter with resonators utilizing via hole technology is capable of achieving very narrow bandwidths with minimal insertion loss and high selectivity at microwave frequencies is provided. The resonators may also be used as feed posts. A typical implementation of this filter is fabricated with soft substrate multilayer dielectrics with high dielectric constant ceramics. This filter typically takes up less space than other filters presently available. A typical implementation operates at a center frequency of 1 GHz, although other center frequencies, such as approximately 0.5 GHz to approximately 60 GHz, are achievable. The perimeter of the filter may be defined by via holes or plated slots.

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