Results 81 to 90 of about 783 (172)

Novel microstrip bandstop filter

open access: yesElectronics Letters, 1977
A microstrip bandstop filter is described that overcomes the problems of radiation and surface-wave generation at high frequencies (40 GHz). An attenuation greater than 17 dB has been measured over at least a 10% bandwidth. The peak attenuation in the band can exceed 30 dB.
openaire   +1 more source

A new tunable bandstop filter square-ring resonator using varactor diodes. [PDF]

open access: yesPLoS One, 2023
Duarte Júnior JG   +2 more
europepmc   +1 more source

Miniature Multi-Band Absorptive Bandstop Filter Designs Using Bridged-T Coils

open access: yesIEEE Access, 2018
In this paper, miniature absorptive bandstop filters (ABSFs) with one to three stopbands are demonstrated. First, the proposed single-band ABSF is realized by the introduction of one lossy resonator to a conventional stub bandstop filter, while the ...
En-Wei Chang, Yo-Shen Lin
doaj   +1 more source

A Review of Microstrip Bandstop Filters: Analysis and Design Techniques

open access: yesJournal of High-Frequency Communication Technologies
High-performance RF transceiver systems create large demands in multimode wireless communication system applications with high-frequency suppression, increased spectral utilization, and flexibility to control stopband and passband frequency ...
Selvakumar Arumugam   +2 more
doaj   +1 more source

A Tunable Dual-Band Bandpass-to-Bandstop Filter Using p-i-n Diodes and Varactors

open access: yesIEEE Access, 2018
In this paper, a tunable dual-band bandpass-to-bandstop filter and its analysis are proposed. The bandpass-to-bandstop transformation could be obtained by changing the state of the p-i-n diode.
Fu-Chang Chen, Run-Shuo Li, Ji-Peng Chen
doaj   +1 more source

Design of Compact Polarization Insensitive Triple Bandstop Frequency Selective Surface with High Stability under Oblique Incidence [PDF]

open access: yesRadioengineering, 2019
This paper proposes a novel design of a triple band frequency selective surface (FSS) that acts as a bandstop filter at 1.92 GHz, 3.5 GHz and 5.64 GHz. The bandstop frequencies resemble to GSM, WLAN and WiMAX application bands respectively. The structure
A. Ghosh, A. Banerjee, S. Das
doaj  

A Four-Wavelength Photoplethysmography dataset for non-invasive hemoglobin assessment. [PDF]

open access: yesSci Data
Chen L   +7 more
europepmc   +1 more source

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