Results 31 to 40 of about 6,144 (263)
Compact Wide-Frequency Tunable Filter With Switchable Bandpass and Bandstop Frequency Response
IEEE Access, 2019 In this paper, a novel compact wide-frequency tunable filter with switchable bandpass and bandstop frequency response is presented. By employing two PIN diodes between the source and load port, the bandpass and bandstop filtering response can be switched,
Kaijun Song +5 more
doaj +1 more source
Novel SRR loaded waveguide bandstop filters [PDF]
, 2006 Two types of novel split ring resonator (SRR) loaded rectangular waveguide bandstop filter structures have been presented. The first proposed SRR-loaded waveguide bandstop filter has been designed simulated and tested.
Budimir, D. +5 more
core +1 more source
Dual-mode microstrip bandstop filters
2008 Asia-Pacific Microwave Conference, 2008 In this study, we proposed a novel bandstop filter using a square loop resonator. Dual-mode microstrip bandstop filters are designed and realized by employing two degenerate modes of a dual-mode microstrip square loop resonators. Microstrip loop resonators have been used extensively for bandpass filter applications.
Eryilmaz, M. +3 more
openaire +4 more sources
Characterizing a Tune All Bandstop Filter [PDF]
2009 International Microwave Workshop Series on Signal Integrity and High-Speed Interconnects, 2009 In this paper a reconfigurable bandstop filter able to reconfigure central frequency, bandwidth and selectivity for fine tuning applications is presented. The reconfigurable filter topology has four poles and a quasielliptic bandstop filter response. The filter is tuned by varactor diodes placed at different locations on the filter topology.
Musoll, Carles +4 more
openaire +2 more sources
Tree-structured complementary filter banks using all-pass sections [PDF]
, 1987 Tree-structured complementary filter banks are developed with transfer functions that are simultaneously all-pass complementary and power complementary.
Mitra, Sanjit K. +4 more
core +1 more source
Abnormal Enhanced Gamma Synchronization in the Default Mode Network Associated With Chronic Pain. [PDF]
Eur J NeurolThis study enrolled 42 chronic pain patients and 42 healthy controls, applying phase‐based connectivity, graph theory, dynamic connectivity analyses, and machine learning to analyze EEG data. It revealed that chronic pain patients showed increased dynamic gamma synchronization within the default mode network (DMN), as well as enhanced resting‐state ...
Jiang Z +12 more
europepmc +2 more sources
Frequency-Selective Limiters Using Triple-Mode Filters
IEEE Access, 2020 This paper presents the first frequency-selective limiter (FSL) with both power-activation and user-prompted override that also features a reconfigurable threshold power and frequency tuning with closed-loop feedback.
Wei Yang +4 more
doaj +1 more source
Electronics Letters, 2023 The working mechanism of suggested tunable bandstop filtered with asymmetrical multiple‐mode resonator equipped with tree‐shape branches is described in this letter.
Jie Luo +3 more
doaj +1 more source
Continuously Tunable Dual-Mode Bandstop Filter [PDF]
IEEE Microwave and Wireless Components Letters, 2018 A varactor-based tunable bandstop filter has been proposed in this article. The proposed filter is based on a dualmode circuit developed by introducing inductive and capacitive couplings into a notch filter. The frequency tunability is achieved by using varactor diodes instead of the lumped capacitors in the circuit.
Amir Ebrahimi +3 more
openaire +2 more sources
Signal specific electric potential sensors for operation in noisy environments [PDF]
, 2009 Limitations on the performance of electric potential sensors are due to saturation caused by environmental electromagnetic noise. The work described involves tailoring the response of the sensors to reject the main components of the noise, thereby ...
A Aydin +15 more
core +1 more source