Waveguide band-stop filter

Details Waveguide band-stop filter Waveguide band-stop filter

2007-07-31

2007-07-31

Jones, Stephen E. (Department: 2817)

Wave transmission lines and networks

Coupling networks

Wave filters including long line elements

C333S209000

Reexamination Certificate

active

10874667

ABSTRACT:
A filter includes a waveguide with at least one impedance structure with a resonant frequency. The impedance structure is positioned in the waveguide to reflect signals at the resonant frequency. The filter can be tunable by including variable capacitance devices in the impedance structure(s) so that the resonant frequency can be adjusted.

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Diaz et al, Broadband Antennas Over Electronically Reconfigurable Artificial Magnetic Conductor Surfaces, 2001 Antenna Applications Symposium, Monticello, IL, Sep. 19-21, 2001.
Xin et al, Electromagnetic Crystal (EMXT) Waveguide BAnd-Stop Filter, 2003 IEEE Microwave and Wireless Components Letters, vol. 13, No. 3, Mar. 2003.

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