Results 1 to 10 of about 79,732 (357)

A Ku-Band Miniaturized System-in-Package Using HTCC for Radar Transceiver Module Application

open access: yesMicromachines, 2022
This paper introduces a miniaturized system in package (SIP) for a Ku-band four-channel RF transceiver front-end. The SIP adopts the packaging scheme of an inner heat-dissipation gasket and multi-layer substrate in the high temperature co-fired ceramics (
Fan Yang, Bowen Zhang, Leijun Song
doaj   +1 more source

Microwave Passive Direction-Finding Method Based on NV Color Center in Diamond

open access: yesMicromachines, 2023
In this study, we established a passive direction-finding scheme based on microwave power measurement: Microwave intensity was detected using microwave-frequency proportion integration differentiation control and coherent population oscillation effect ...
Qi Wang   +4 more
doaj   +1 more source

Low-Profile Frequency-Reconfigurable LTE-CRLH Antenna for Smartphones

open access: yesIEEE Access, 2020
This paper presents a monopole antenna loaded with one frequency-reconfigurable composite right/left-handed (CRLH) unit cell. This antenna is designed by means of two varactor diodes and with changing capacitance operating at LTE700 (698-798 MHz), LTE850
A. Shahgholi, G. Moradi, A. Abdipour
doaj   +1 more source

Imaging Simulation and Damage Assessment Feature Analysis of Ku Band Polarized SAR of Buildings

open access: yesLeida xuebao, 2020
Building damage assessment is important in disaster emergency monitoring. In recent years, with the increase of multi-polarization capability of Synthetic Aperture Radar (SAR), Polarimetric Synthetic Aperture Radar (PolSAR) provides more possibilities ...
PANG Lei   +7 more
doaj   +1 more source

Photonic Approach for Measuring AOA of Multiple Signals With Improved Measurement Accuracy

open access: yesIEEE Photonics Journal, 2020
The objective of this paper is to present a microwave photonic system that can measure the angle of arrival (AOA) of multiple microwave signals with improved measurement accuracy.
Hao Chen   +2 more
doaj   +1 more source

Computational electromagnetic analysis of partially-filled rectangular waveguide at X-band frequencies

open access: yesNonlinear Analysis, 2022
In this paper, the full-wave analysis of the direct scattering problem in the rectangular waveguide is derived. The numerical calculation results of the scattering characteristics are presented.
Ilona Zamaraite   +5 more
doaj   +1 more source

Microwave Moisture Measurements

open access: yesMeasurement Science and Technology, 2007
Microwave moisture measurements refer to a methodology by which the water content of materials is non-invasively determined using electromagnetic fields of radio and microwave frequencies. Being the omnipresent liquid on our planet, water occurs as a component in most materials and often exercises a significant influence on their properties.
Kaatze, Udo   +2 more
openaire   +2 more sources

Instantaneous Microwave Frequency Measurement Using Programmable Differential Group Delay (DGD) Modules

open access: yesIEEE Photonics Journal, 2010
We propose and experimentally demonstrate a photonic approach for the measurement of microwave frequencies with adjustable measurement range and resolution.
Songnian Fu   +3 more
doaj   +1 more source

Influence of non‐ideal line‐reflect‐match calibration standards on vector network analyzer S‐parameter measurements

open access: yesIET Science, Measurement & Technology, 2023
In this paper, an improved two‐step method is presented for the sensitivity analysis of vector network analyzer (VNA) S‐parameter measurements due to the non‐ideal line‐reflect‐match (LRM) calibration standards.
Wei Zhao   +5 more
doaj   +1 more source

Propagation Constant Measurement Based on a Single Transmission Line Standard Using a Two-Port VNA

open access: yesSensors, 2023
This study presents a new method for measuring the propagation constant of transmission lines using a single line standard and without prior calibration of a two-port vector network analyzer (VNA).
Ziad Hatab   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy