Tunable bandpass filter design based on external quality factor tuning and multiple mode resonators for wideband applications
In this paper, a tunable bandpass filter using cross-shaped multiple mode resonators
(MMRs) and N: 1 transformer based external quality factor tuning structures is proposed. The …
(MMRs) and N: 1 transformer based external quality factor tuning structures is proposed. The …
Frequency-agile bandstop filter with tunable attenuation
DR Jachowski, C Rauscher - 2009 IEEE MTT-S International …, 2009 - ieeexplore.ieee.org
A frequency-agile bandstop filter technology with tunable stopband attenuation and constant
absolute bandwidth is described. The technology is demonstrated by a six-resonator planar …
absolute bandwidth is described. The technology is demonstrated by a six-resonator planar …
[PDF][PDF] Microstrip filter design techniques: an overview
In this paper, two common techniques indesigning microstrip microwave filterwere reviewed
which areperiodic and non-periodic microstrip line perturbation techniques and matched …
which areperiodic and non-periodic microstrip line perturbation techniques and matched …
Sub-octave-tunable microstrip notch filter
DR Jachowski, AC Guyette - 2009 IEEE International …, 2009 - ieeexplore.ieee.org
A frequency-agile narrowband microstrip bandstop filter technology able to maintain near
constant absolute bandwidth while tuning over a frequency range of nearly an octave is …
constant absolute bandwidth while tuning over a frequency range of nearly an octave is …
Miniaturized stepped-impedance dual-mode resonator filter
WP Wen - 2011 IEEE International Conference on Microwave …, 2011 - ieeexplore.ieee.org
Conventional dual mode filters are realized by perturbing the electromagnetic field of ring
resonator structures such that two orthogonal resonant modes occur, yielding a dual mode …
resonator structures such that two orthogonal resonant modes occur, yielding a dual mode …
Reconfigurable dual-mode ring resonator matched bandstop filter
This paper demonstrates a reconfigurable dual-mode ring resonator matched bandstop
filter. The dual-mode ring resonator structure is composed by two degenerate modes or …
filter. The dual-mode ring resonator structure is composed by two degenerate modes or …
A novel single and dual-band miniaturized matched band-stop filter using stepped impedance resonator
In this paper in order to reduce the size and improve the performance of microwave filter,
novel single and dual band matched band-stop filters are developed. A stepped impedance …
novel single and dual band matched band-stop filters are developed. A stepped impedance …
Frequency-agile frequency-selective variable attenuator
DR Jachowski - US Patent 8,305,164, 2012 - Google Patents
US8305164B1 - Frequency-agile frequency-selective variable attenuator - Google Patents
US8305164B1 - Frequency-agile frequency-selective variable attenuator - Google Patents …
US8305164B1 - Frequency-agile frequency-selective variable attenuator - Google Patents …
Reconfigurable matched bandstop filter
This paper demonstrates a reconfigurable matched bandstop filter. The filter is based on a
lossy allpass network. The lossy allpass network demonstrates the concept and design of …
lossy allpass network. The lossy allpass network demonstrates the concept and design of …
Miniaturized matched band-stop filter based dual mode resonator
Band-stop filters are very important components for microwave transceivers. Wireless
communication systems, the current application usually require small devices to fulfill the …
communication systems, the current application usually require small devices to fulfill the …