Results 1 to 10 of about 139,348 (204)
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 +3 more sources
A Tunable Dual-Band Metamaterial Filter Based on the Coupling Between Two Crossed SRRs
IEEE Photonics Journal, 2021 A tunable dual-band metamaterial filter based on crossed split-ring resonators is numerically and experimentally demonstrated. The proposed tunable metamaterial filter consists of two same metal split rings with different angles.
Zhijun Qiao +3 more
doaj +3 more sources
Research on Continuously Tunable Carbon Nanotube Mode-Locked Fiber Laser [PDF]
MicromachinesThis paper demonstrates a C-band continuously tunable mode-locked fiber laser based on a carbon nanotube saturable absorber (CNT-SA) and a commercial broadband tunable filter.
Zhengyu Yang, Fei Wang, Pingping Xiao
doaj +2 more sources
RF MEMS Based Tunable Bowtie Shaped Substrate Integrated Waveguide Filter [PDF]
Radioengineering, 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
Proposing a novel structure for the implementation of a graphene metamaterial-based tunable band pass/stop spatial THz plasmonic filter [PDF]
Scientific ReportsWe propose a tunable multi-layer graphene surface plasmonic filter in the terahertz band. In this work, we can set the filter type, operation frequency, and pass/stop bandwidth by properly selecting the chemical potential of graphene.
Pooria Kabiri, Amir saman Nooramin
doaj +2 more sources
Investigation of a Tunable Microwave Photonic Filter Based on an Acetylene Reference Cell
Известия высших учебных заведений России: Радиоэлектроника, 2023 Introduction. Recently, the development of tunable microwave photonic filters has attracted great scientific and practical interest. Such microwave photonic filters are a good alternative to traditional electrical solutions, due to low losses, wide ...
I. Yu. Tatsenko +3 more
doaj +1 more source
IEEE Access, 2021 In this study, defected ground structures (DGSs) are applied in the coupling schemes of a planar tunable filter to achieve constant absolute bandwidth (CAB).
Yun Liu +3 more
doaj +1 more source
Distributed MEMS Tunable Filters [PDF]
31st European Microwave Conference, 2001, 2001 This paper focus on the design of MEMS distributed tunable millimeter wave filters. A two pole filter continuously tunable in bandwidth and in frequency with constant input/output impedance is described. The center frequency can be tuned from 37.8 GHz to 40.4 GHz and the bandwidth can be changed from 1.6 GHz to 1 GHz with constant return losses.
Mercier, D. +3 more
openaire +2 more sources
IEEE Access, 2023 This paper presents a design of microstrip line tunable bandpass filter (BPF) with a transmission zero (TZ) that can accommodate arbitrarily terminated input and output port impedances ( $Z_{s}$ and $Z_{L}\ne ~50~\Omega )$ . We extracted a new coupling
Girdhari Chaudhary, Yongchae Jeong
doaj +1 more source
Tunable active chirped-corrugation waveguide filters [PDF]
, 1989 A novel tunable semiconductor waveguide reflection filter is proposed and analyzed. The filter is based on spatially selective gain pumping of a chirped-corrugation waveguide.
Mittelstein, Michael +2 more
core +1 more source