Results 61 to 70 of about 13,936 (262)
IEEE Photonics Journal, 2019 A tunable microwave photonic notch filter with ultrahigh radio frequency (RF) rejection ratio is achieved by using a dual-drive Mach–Zender modulator and a microring resonator.
Pengfei Zheng +5 more
doaj +1 more source
Development of Microwave Filters with Tunable Frequency and Flexibility Using Carbon Nanotube Paper. [PDF]
Nanomaterials (Basel), 2023 Liu JH, Huang YS.
europepmc +1 more source
Advanced Materials Technologies, EarlyView.This paper presents an agar medium with a phosphorescent grid pattern that measures the stress distribution generated by growing plant roots. Using phosphorescence, the system optically separates the grid pattern from the root and extracts the grid deformation.
Gakuto Kagawa, Hidetoshi Takahashi
wiley +1 more source
Design of U-Shaped Frequency Tunable Microwave Filters in MEMS Technology. [PDF]
Sensors (Basel), 2023 Giacomozzi F +8 more
europepmc +1 more source
Advanced Materials Technologies, EarlyView.Aerosol Jet Printing (AJP) has emerged as a versatile additive manufacturing technique for high‐resolution, conformal, and multi‐material printing. This review highlights advances in printable materials, substrate compatibility, post‐processing, characterization, and process innovations, while critically discussing current challenges and future ...
Chandrachur Chatterjee +2 more
wiley +1 more source
New approach to computer aided design of coupled resonator filters
Journal of Telecommunications and Information Technology, 2003 A gradient based optimization technique along with a new definition of cost function is applied to synthesis of coupled resonators filters. The cost function is defined using location of zeros and poles of the filter`s transfer function. The topology of
Piotr Kozakowski, Michał Mrozowski
doaj +1 more source
Relative Permittivity Measurement of Microliter Volume Liquid Samples through Microwave Filters. [PDF]
Sensors (Basel), 2023 Yasin A +5 more
europepmc +1 more source
Advanced Materials Technologies, EarlyView.Direct nanoscratching with a 500 nm diamond lapping film creates groove‐guided liquid‐crystal alignment interfaces on PCB‐compatible Cu‐patterned RF substrates within minutes, eliminating polymer coating and high‐temperature baking. The coating‐free process enables optical/molecular alignment validation and voltage‐programmable 28 GHz reflection‐phase ...
Junseok Ma +5 more
wiley +1 more source
Electronics LettersHere, based on thin film integrated passive device (TF‐IPD) technology, compact ultra‐wideband (UWB) bandpass filter (BPF) and dual‐band bandpass filter (DBBPF) with equal inductance configuration are proposed.
Zhi‐Hao Liu +3 more
doaj +1 more source
Wood‐Derived Nanocellulose‐Biocarbon Fresnel‐Zone Plate Lenses for Sub‐THz Frequency Applications
Advanced Materials Technologies, EarlyView.Wood‐derived nanocellulose and lignin‐based biocarbon were combined to fabricate fully bio‐based Fresnel zone plate (FZP) lenses for sub‐terahertz frequencies. These sustainable FZP lenses exhibit low dielectric loss and high directivity, achieving performance comparable to that of metallic references, and remain functional under environmental stress ...
Riikka Haataja +9 more
wiley +1 more source