Results 1 to 10 of about 21,537 (236)

TUNABLE BANDPASS FILTER USING RF MEMS SWITCHES

open access: goldInternational Islamic University Malaysia Engineering Journal, 2010
A band pass tunable RF filter is proposed by using Radio Frequency (RF) Microelectro Mechanical Systems (MEMS). The tunability is obtained by using capacitive MEMS switches that can be tuned within the bandwidth of 3.6 GHz to 4.4 GHz.
A.H.M Zahirul Alam
doaj   +4 more sources

RF MEMS Based Tunable Bowtie Shaped Substrate Integrated Waveguide Filter [PDF]

open access: yesRadioengineering, 2015
A tunable bandpass filter based on a technique that utilizes substrate integrated waveguide (SIW) and double coupling is presented. The SIW based bandpass filter is implemented using a bowtie shaped resonator structure.
M. Z. Ur Rehman   +4 more
doaj   +3 more sources

Electronically tunable bandpass filter [PDF]

open access: green, 1990
An electronically tunable bandpass filter is presented. It is a combline filter realized in microstrip form. The filter is made tunable by using the variable capacitance of a GaAs fet (or of a varactor). With the use of this technique it is possible to achieve relative bandwidth from 8% to 30%, a tuning bandwidth 'up to 50% and a center frequency up to
G. Bianchi, J. G. Pinto
openalex   +3 more sources

Compact Wide-Frequency Tunable Filter With Switchable Bandpass and Bandstop Frequency Response

open access: yesIEEE 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   +3 more sources

Simple Coupled-Line Tunable Bandpass Filter With Wide Tuning Range [PDF]

open access: goldIEEE Access, 2020
In this paper, a tunable bandpass filter using coupled line with a wide tuning range is proposed. The proposed filter has a simple structure which is composed of a coupled-line section and two pairs of varactors.
Xiaoxiao Chen   +3 more
doaj   +2 more sources

Angularly tunable bandpass filter: design, fabrication, and characterization [PDF]

open access: greenOptical Interference Coatings Conference (OIC) 2019, 2019
We present a thorough study of a bandpass filter for the near-infrared (IR) region, with bandwidth below 20 nm, high transmission, and a broad rejection band [350-1100] nm. This filter is angularly tunable between 0 and 50° and shows a shift of the central wavelength from 970 nm down to 880 nm, without major changes in its bandwidth and spectral shape ...
Julien Lumeau   +4 more
openalex   +5 more sources

All-Fiber Acousto-Optic Tunable Bandpass Filter Based on a Lateral Offset Fiber Splicing Structure [PDF]

open access: goldIEEE Photonics Journal, 2015
An all-fiber acousto-optic tunable bandpass filter has been proposed and experimentally demonstrated by fabricating a lateral offset fiber splicing structure between the lead-in single-mode fiber and acoustic fiber grating.
Hao Zhang   +4 more
doaj   +2 more sources

Simulation Study on Tunable Terahertz Bandpass Filter Based on Metal–Silicon–Metal Metasurface [PDF]

open access: goldPhotonics
Metasurface devices have demonstrated powerful electromagnetic wave manipulation capabilities. By adjusting the shape and size parameters of the metasurface microstructure, we can control the resonance between spatial electromagnetic waves and the ...
Wenjun Liu, Jitao Li
doaj   +2 more sources

Silicon integrated frequency‐tunable microwave photonic bandpass filter

open access: goldIET Optoelectronics, 2023
Microwave photonic filters have been regarded as an alternative to traditional radio‐frequency filters because of their wide bandwidth and large tunability.
Yuhan Yao   +3 more
doaj   +2 more sources

Tunable double-cavity solid-spaced bandpass filter

open access: goldOptics Express, 2004
In this paper, we introduce the principle and demonstrate the feasibility of a tunable multiple-cavity solid-spaced bandpass filter for WDM (Wavelength Division Multiplexing) applications, which uses a vernier effect since the two cavities have different thermal sensitivities.
Johan Floriot   +2 more
openalex   +4 more sources

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