Results 11 to 20 of about 32,004 (155)

Dual-Band Tunable Recursive Active Filter [PDF]

open access: yesIEEE Microwave and Wireless Components Letters, 2011
This letter presents a novel recursive active filter topology that provides dual-band performance, with independent tuning capability in both bands. The dual-band operation is achieved by using two independent feedback lines. Additionally, linear phase shifters based on left-handed cells are included in these two branches in order to tune the center ...
Segovia Vargas, Daniel   +3 more
openaire   +4 more sources

Dual-Band Pass Filter with Wide Band-Frequency Rejection

open access: yesAl-Iraqia Journal for Scientific Engineering Research, 2022
A Dual band Filter block has been highly attention due to its highly importance in wireless communication systems. High frequency level normally companies with the performance of filter block.
Mushtaq A. Alqaisy
doaj   +2 more sources

Design of a Microstrip Dual-Band Bandpass Filter Using Novel Loaded Asymmetric Two Coupled Lines for WLAN Applications [PDF]

open access: yesJournal of Electrical and Computer Engineering Innovations, 2020
Background and Objectives: Due to the rapid development in wireless communications, bandpass filters have become key components in modern communication systems. Among the microwave filter technologies, planar structures of microstrip line are chosen, due
R. Salmani, A. Bijari, S. H. Zahiri
doaj   +1 more source

A Versatile 3-D Printable Model for Implementing Multiband Waveguide Filters With Flexible Filtering Characteristics

open access: yesIEEE Access, 2023
This paper presents a novel multiband waveguide filter model employing cylindrical resonators arranged horizontally and vertically in Olympic and parallel topologies, respectively.
Povilas Vaitukaitis   +2 more
doaj   +1 more source

Robust Kalman Filter Soil Moisture Inversion Model Using GPS SNR Data—A Dual-Band Data Fusion Approach

open access: yesRemote Sensing, 2021
This article aims to attempt to increase the number of satellites that can be used for monitoring soil moisture to obtain more precise results using GNSS-IR (Global Navigation Satellite System-Interferometric Reflectometry) technology to estimate soil ...
Lili Jing   +11 more
doaj   +1 more source

A Low Profile, Dual-Band, Dual-Polarized Patch Antenna With Antenna-Filter Functions and Its Application in MIMO Systems

open access: yesIEEE Access, 2021
In this paper, a low profile, dual-band dual-polarized patch antenna is proposed for antenna-filter function with a relatively low profile of 0.032 wavelength.
Jinhai Liu   +7 more
doaj   +1 more source

A Compact Dual-Wideband Bandpass Filter Based on Open-/Short-Circuited Stubs

open access: yesIEEE Access, 2020
A dual-wideband bandpass filter is proposed and analyzed, which is based on loaded open-/short-circuited stubs. The dual-band filter consists of a second-order bandpass filter and a third-order bandpass filter, which can be designed separately.
Gen-Zhu Liang, Fu-Chang Chen
doaj   +1 more source

Miniaturized Dual-Band Dual-Mode TM-Mode Dielectric Filter in Planar Configuration

open access: yesIEEE Journal of Microwaves, 2022
This paper reports a new class of compact inline dual-band bandpass filters using TM-mode dielectric resonators in planar configuration. Thanks to the employment of the dielectric-loaded TM-mode waveguide configuration and the dual-mode TM120 and TM210 ...
Abdulrahman Widaa, Michael Hoft
doaj   +1 more source

Dual-mode dual-band microstrip filters

open access: yes2009 European Microwave Conference (EuMC), 2009
A compact dual-band microstrip bandpass filter is proposed using dual-mode resonators. Two microstrip loop resonators, one within the other, are employed to obtain dual-mode dual-band filter responses. Each loop resonator uses two loading elements to excite dual modes.
Karpuz, Ceyhun, Görür, Adnan
openaire   +6 more sources

Dual-Band Tunable Screen using Complementary Split Ring Resonators [PDF]

open access: yes, 2010
Active frequency selective surfaces (FSS) based on slot-form split ring resonators are described. Switching and tuning have been achieved using two different biasing circuit configurations.
Parker, Edward A.   +5 more
core   +1 more source

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