Results 21 to 30 of about 19,862 (222)
Small Size Dual-band Bandpass Filters with Multiconductor Transmission Lines and Shunt Open Stubs [PDF]
, 2018 A dual-band bandpass filter consisting of multiconductor transmission lines (MTL) and shunt stubs has been designed. The used topology, based on the interconnection of two identical MTL and a shunt open stub, has a frequency response that can be modelled
Márquez Segura, Enrique +2 more
core +1 more source
A CMOS Q-Enhancement Bandpass-Filter For Use In Paging Receivers [PDF]
, 1998 Paging receivers often have to work in a dense\ud signal environment. This poses high demands on the preselection\ud filter. One of the most difficult aspects is the large\ud image rejection demand, which only can be satisfied by use\ud of a narrow-band ...
Eikenbroek, J.W.Th. +3 more
core +8 more sources
Continuously Tunable Microwave Photonic Notch Filter With a Complex Coefficient
IEEE Photonics Journal, 2011 This paper presents a continuously tunable microwave photonic notch filter with a complex coefficient. The complex coefficient is generated using a radio-frequency (RF) phase shifter that consists of a dual-parallel Mach-Zehnder modulator (DPMZM) and a ...
Wei Li, Ning Hua Zhu, Li Xian Wang
doaj +1 more source
High-Q High Power Tunable Filters Manufactured With Injection Molding Technology
IEEE Access, 2022 This paper presents the first demonstration of injection molding technology to enable large-scale mass manufacturing of high-performance tunable microwave filters to meet the growing needs of 5G small cell stations.
Michael D. Sinanis +4 more
doaj +1 more source
Magnetically tunable bandpas filter of teraherz radiation
Izvestiya vysshikh uchebnykh zavedenii. Fizika, 2022 A magnetically tunable bandpass filter of terahertz radiation is created and investigated. The filter is a cell with a magnetic fluid and a system of inductance coils made in the form of Helmholtz rings. The magnetic fluid consists of automotive synthetic engine oil and 5BDSR alloy microparticles with a mixed amorphouscrystalline structure. When a cell
Kochnev, Zahar S. +2 more
openaire +2 more sources
IEEE Access, 2018 A novel 4th-order cross-coupled electrical tunable bandpass filter with constant absolute bandwidth and high frequency selectivity is proposed. The electric coupling coefficients and the magnetic coupling coefficients of the cross-coupled resonators and ...
Dengyao Tian +2 more
doaj +1 more source
Reconfigurable Filter for Bandpass-to-Absorptive Bandstop Responses
IEEE Access, 2020 A frequency tunable filter with a bandpass-to-absorptive bandstop reconfigurable characteristic is studied, designed and validated theoretically and experimentally.
Tae-Hak Lee, Jean-Jacques Laurin, Ke Wu
doaj +1 more source
Electronically tunable bandpass filter
, 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
Bianchi, G., Pinto, G.
openaire +2 more sources
Tunable active bandpass filter design
Electronics Letters, 2011 A tunable active bandpass filter that uses control voltage to select passband frequency response is presented. The proposed topology basically consists of a cascoded current-injection active inductor so as to tune passband frequency response from 2.35 to 3.66 GHz and extend the available bandwidth.
S.-W. Chen, J.-W. Wu, J.-D. Wu, J.-S. Li
openaire +1 more source
Tunable double-cavity solid-spaced bandpass filter
Optics 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.
Floriot, J., Lemarchand, F., Lequime, M.
openaire +3 more sources