Results 11 to 20 of about 27,838 (269)
Characteristics of the Sleeve Dipole Antenna Used for EMC Applications
This paper presents the antenna factor (AF) of sleeve dipole antennas (SDA) with coaxial-cable balun for electromagnetic compatibility (EMC) applications.
Ki-Chai Kim +2 more
doaj +1 more source
Calibration Proposal for UHF Partial Discharge Measurements at Power Transformers
The continuous, non-intermitted service of electrical grids relies on the reliability of their assets, e.g., power transformers. Local insulation defects can result in serve failures such as breakdowns with severe subsequent costs. The prevention of such
Martin Siegel +10 more
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This paper presents a compact, dual polarized bistatic (two closely spaced transmit and receive radiators) patch antenna with excellent interport isolation performance.
Haq Nawaz +3 more
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Q-Factor Bounds for Microstrip Patch Antennas [PDF]
Antenna bounds are a useful tool in assessing the feasibility or performance of an antenna design. Microstrip patch antennas are often limited by their relatively narrow bandwidth, and therefore Q-factor is an important design parameter, as it is related to the inverse of the fractional bandwidth.
Ben A. P. Nel +2 more
openaire +1 more source
Ultra-low profile solar-cell-integrated antenna with a high form factor
This paper presents an ultra-low-profile copper indium gallium selenide (CIGS) based solar cell integrated antenna with a high form factor. A tiny slot was etched from the solar cell to develop an ultra-low-profile solar-cell-integrated antenna.
Ahmed Ali +4 more
doaj +1 more source
Validation of Compact-Standard Antenna Method for Antenna Calibration above 1 GHz [PDF]
In this paper, we propose a compact-standard antenna method (C-SAM) for antenna calibration above 1 GHz. The test-site evaluation of the fully-anechoic room (FAR) condition satisfied the free-space conditions.
Min-Joo Jeong +4 more
doaj +1 more source
Measurement of HF monopole antenna array ground wave gain, antenna factor, and antenna noise factor [PDF]
This paper presents a practical way to measure the ground wave gain G/sub GW/, ground wave antenna factor AF/sub GW/, and antenna noise factor F/sub a/(Mon) of monopoles used in BF antenna arrays. It shows measurement results taken from June 1997 to September 1999 at five geographically separated HIT arrays.
openaire +2 more sources
Antenna factorization of gauge-theory amplitudes [PDF]
I derive a single factorization formula which summarizes all soft and collinear divergences of a tree-level gauge theory amplitude. The singular factor squared is in a certain sense the generalization of the Catani-Seymour dipole factorization formula.
openaire +2 more sources
Analysis of Horn Antennas in Receiving Mode as an EM Field Sensor
Electromagnetic (EM) field measurement uses antenna in receiving mode as EM field sensor (EMFS). FDTD technique is applied to analyze the horn antenna in this mode.
Maifuz Ali, Seong-Ook Park
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In massive MIMO systems,the strong antenna correlation among large antenna arrays would lead to system performance degradation. In this paper a joint antenna grouping and antenna selection algorithm based on maximum ratio transmission precoding was ...
JI Xiaowei +3 more
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