Results 61 to 70 of about 543 (185)

A Fully Automated Robotic System for Tuning Optimization of RF Cavity Filter

open access: yesJournal of Field Robotics, Volume 42, Issue 6, Page 2826-2852, September 2025.
ABSTRACT The advancements in radar systems, electronic warfare, and telecommunication industries have generated a substantial demand for microwave filters. Among these, cavity filters have conventionally served in transmitters and receivers, facilitating the passage of desired signals in the passband while effectively rejecting harmonics and spurious ...
Yarkin Yigit, Engin Afacan
wiley   +1 more source

Tunable Microwave Bandpass Filters With Complementary Split Ring Resonator and Liquid Crystal Materials

open access: yesIEEE Access, 2019
In this paper, a novel planar waveguide filter based on liquid crystal materials is devised, and a half-mode corrugated substrate integrated waveguide (HMCSIW) tunable bandpass filter with complementary split ring resonator (CSRR) structure is proposed ...
Di Jiang   +4 more
doaj   +1 more source

Mechanical Tuning of Air‐Filled Substrate Integrated Waveguide Cavities by Employing Dielectric Rods

open access: yesMicrowave and Optical Technology Letters, Volume 67, Issue 8, August 2025.
ABSTRACT This study presents a simple method to obtain tunable cavity resonators in air‐filled substrate integrated waveguide (AFSIW) technology. It is based on the insertion of a dielectric rod from an opening placed on a side of the SIW cavity, whose resonance frequency is varied by changing the penetration depth of the rod. To avoid power leakage, a
Nicolò Delmonte   +3 more
wiley   +1 more source

Wireless Power and Data Transfer Technologies for Flexible Bionic and Bioelectronic Interfaces: Materials and Applications

open access: yesAdvanced Materials Technologies, Volume 10, Issue 5, March 4, 2025.
This paper reviews the state‐of‐the‐art and recent advances in bio‐integrated wireless power and data transfer technologies for flexible bionics, wearable and implantable bioelectronics. The architectures, operating principles, materials, and application technologies are presented in detail.
Massimo Mariello, Christopher M. Proctor
wiley   +1 more source

Study the Comparison between Un-Bended and Bended Broadband Parallel Coupled Microstrip Bandpass Filters Under Certain Angle

open access: yesJournal of Engineering and Sustainable Development, 2011
In this paper, design and simulation of broadband parallel-coupled microstrip bandpass filters used for modern wireless communication technology (Military & Industrial System such as Low Noise Block ( ) in Television Satellite) are presented, Four ...
Ahmed H. Reja   +2 more
doaj  

Design Procedure for Interdigital Waveguide Bandpass Filters Based on Flat Metallic Strips

open access: yesRadio Science, Volume 60, Issue 3, March 2025.
Abstract In this work, we describe a new topology for interdigital bandpass filters implemented in waveguide technology. Compared to classical coaxial resonators, which are typically based on cylindrical metallic posts, the resonators that we propose are based on rectangular boxed cavities loaded with flat metallic strips of a finite thickness.
R. García   +6 more
wiley   +1 more source

Three‐Way Equal Filtering Power Divider for Modern Communication Systems

open access: yesEngineering Reports, Volume 7, Issue 1, January 2025.
A balanced three‐way filtering power divider that receives input power and delivers equal amount of output to its three output ports is developed and realized using microstrip technology. The design is well‐suited for modern communication systems due to its low insertion and return losses, sharp selectivity, and integrated filtering capability ...
Augustine O. Nwajana, Rose Paul
wiley   +1 more source

A Miniaturize Bandpass Filter with Harmonic Suppression Using Meandered Quarter-Wavelength Resonators

open access: yesInternational Journal of Antennas and Propagation, 2014
A miniaturized bandpass filter with harmonics suppression is presented. The proposed filter consists of two quarter-wavelength microstrip resonators, which are meandered for circuit size reduction. An interdigital capacitor, loading at zero-voltage point,
Yun-Long Lu   +4 more
doaj   +1 more source

A miniaturized microstrip suppressing cell as an integrated HCC in class F/F−1 power amplifiers for 5G applications

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
A miniaturized suppressing cell (MSC) as a lowpass filter (LPF) is introduced using interdigital shaped resonator to apply in harmonic controlled power amplifiers (PAs.) The cut‐off frequency locates at 2.21 GHz. A sharp transition region (0.6 GHz) is concluded from −3 to −40 dB. Since harmonic control circuits (HCCs) are important blocks in the design
Farzin Shama
wiley   +1 more source

Tuning the Resonance Frequency and Miniaturization of a Novel Microstrip Bandpass Filter

open access: yesThe Journal of Engineering Research, 2018
In this paper, a compact microstrip bandpass filter is designed using two open loop resonators. In order to obtain a tunable bandpass response with low insertion loss, two stubs are loaded inside them.
Abbas Rezaei, Leila Noori
doaj   +1 more source

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