Results 71 to 80 of about 118,677 (214)

A Compact Spin‐Coated Graphene UWB Antenna for Breast Tumor Detection

open access: yesAdvanced Engineering Materials, Volume 28, Issue 14, 22 July 2026.
A compact, spin‐coated graphene ultra‐wideband patch antenna designed for breast tumor detection, capable of distinguishing between malignant and benign tumors. This innovative antenna can serve as an effective initial screening tool, particularly in resource‐limited settings such as rural areas, where access to advanced medical equipment like MRI and ...
Raja Rashidul Hasan   +9 more
wiley   +1 more source

Planar Microstrip Ring Resonator Structure for Gas Sensing and Humidity Sensing Purposes

open access: yesProceedings, 2017
A planar microstrip ring resonator structure on alumina was developed. It was covered with a zeolite film. The device was successfully operated at around 8.5 GHz at room temperature as a humidity sensor. In the next step, an additional planar heater will
Andreas Bogner   +5 more
doaj   +1 more source

Fast finite difference time domain analysis of microstrip patch antennas [PDF]

open access: yes, 1991
Although the finite-difference-time-domain method has been successfully used to model microstrip-fed patch antennas, this has been achieved using uniform grids.
Daniel, EM, Railton, CJ
core   +1 more source

Compact Dual-mode Microstrip Bandpass Filter Based on Greek-cross Fractal Resonator [PDF]

open access: yesRadioengineering, 2017
A geometrically symmetrical fractal structure is presented in this paper to provide an alternative approach for the miniaturization design of microstrip bandpass filters (BPFs). The generation process of the geometric geometry is described in detail, and
H.S. Lu   +4 more
doaj  

Miniaturized band-pass filters using closed-loop microstrip ring resonator with parallel-coupled feed

open access: yes, 2010
Novel compact band-pass filters and diplexer using microstrip ring resonator with parallel-coupled feed are presented. Overall size reductions depend on the amount of meandering used and 56% size reduction is achieved.
Budimir, D., Athukorala, L.
core   +1 more source

Wideband Designs of E-shape Microstrip Antenna on Thinner Substrate

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
Wider bandwidth microstrip antenna employing resonant slot require substrate thickness in excess of 0.07λg, which increases the antenna volume. In this paper, a novel technique to increase the bandwidth in E-shape microstrip antenna fabricated on a ...
Venkata A. P. Chavali, Amit A. Deshmukh
doaj   +1 more source

High-Sensitivity Differential Sensor for Characterizing Complex Permittivity of Liquids Based on LC Resonators

open access: yesSensors
This paper proposes a high-sensitivity microstrip differential sensor for measuring the complex permittivity of liquids. The prototype of the differential sensor was formed by cascading two LC resonators on a microstrip transmission line based on stepped
Zhongjun Li   +5 more
doaj   +1 more source

Development of Gas Sensors on Microstrip Disk Resonators

open access: yesProcedia Engineering, 2014
Abstract Here it is reported about the development of microwave disk resonators and their employment as transducers in gas sensing devices. The sensors were developed by designing, modeling and realizing microstrip resonators on several microwave substrates, and by depositing sensing films on the disk.
ALOISIO, DAVIDE, DONATO, Nicola
openaire   +2 more sources

An adaptive microstrip patch antenna for use in portable transceivers [PDF]

open access: yes, 1996
This paper describes an adaptive frequency tunable microstrip patch antenna. The introduction of an adaptive feedback loop enables the patch antenna to optimise the antenna-feed impedance match.
Railton, CJ, Rostbakken, O, Hilton, GS
core   +1 more source

Circular resonant structures in microstrip

open access: yesElectronics Letters, 1969
Mode patterns of circular disc resonant sections are analysed. Radiation losses are expected to be small for the dominant mode, which would therefore have the highest Q value.
openaire   +1 more source

Home - About - Disclaimer - Privacy