Resonant wave filter
US4837535A · kind A · utility
40Cited by
1References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 1989 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Jan 5, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01P1/219
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A compact resonant wave filter capable of selectively propagating an electromagnetic wave of a prescribed frequency with excellent band-pass wave filter characteristics comprises a TM mode resonator disposed perpendicularly to the direction of propagation of electromagnetic wave energy, a pair of TEM mode resonators disposed one on either side or said TM mode resonator in the direction of propagation of electromagnetic wave energy, and a pair of cutoff waveguides disposed one between said TEM mode resonator and each of said TM mode resonators to couple said TEM mode resonator with said TM mode resonators in evanescent mode.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.