Filters
NEAR-FIELD ANTENNA MEASUREMENTS
This paper provides a basic overview of the theory of planar antenna near-field measurements. Determination of far-field pattern from a near-field measurement. Advantages and disadvantages of this techniqu...
JA - Elektronika a optoelektronika, elektrotechnika
- 2003 •
- D
Rok uplatnění
D - Stať ve sborníku
Měření směrových charakteristik antén
The report contains the procedures and results of antenna radiation patterns measurements.
JA - Elektronika a optoelektronika, elektrotechnika
- 2013 •
- Vsouhrn
Rok uplatnění
Vsouhrn - Souhrnná výzkumná zpráva
Influence of EBG structures on the far-field pattern of patch antennas
In this paper, the influence of the EBG structures on the far-field pattern of patch antennas is investigated. As a reference model, a conventional rectangular patch antenna on a high-permittivity substrate is used. The ref...
JA - Elektronika a optoelektronika, elektrotechnika
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Application of Displaced Beam Method on Antenna Radiation Pattern Measurement
The purpose of our work was to create software with implemented Displaced Beam Method that enables to transform of a Fresnel region antenna pattern to a far field pattern for linear and circular antenna apertures. ...
JA - Elektronika a optoelektronika, elektrotechnika
- 2007 •
- D
Rok uplatnění
D - Stať ve sborníku
PLANE RECTANGULAR NEAR-FIELD MEASUREMENT MODELING IN MATLAB
This paper provides a theory of determination antenna far-field pattern from near-field measurements over a plane-rectangular surface. Implementation of this method to MATLAB has been solved and computed results we...
JA - Elektronika a optoelektronika, elektrotechnika
- 2003 •
- D
Rok uplatnění
D - Stať ve sborníku
Far Field Method Antenna Measurements in near Field
This paper presents the practical application of a method of transforming Fresnel region fields to far region fields for circular aperture antennas with symmetrical aperture field distributions. The article illustr...
JA - Elektronika a optoelektronika, elektrotechnika
- 2005 •
- D
Rok uplatnění
D - Stať ve sborníku
Radiation Efficiency Cost of Optimal Current Density Generating Specific Far-Field Pattern
This paper addresses the question of how closely can a prescribed far field be generated by the current density optimal in radiation efficiency. Two types of current optimization problems are introduced and solved with the ...
Electrical and electronic engineering
- 2024 •
- D •
- Link
Rok uplatnění
D - Stať ve sborníku
Výsledek na webu
DETERMINATION OF FAR-FIELD ANTENNA PATTERN FROM NEAR-FIELD PLANAR MEASUREMENTS
This paper provides a theory of determination antenna far-field pattern from near-field measurements over a planar surface. Evaluation of the far field pattern by this method of nine dipo...
JA - Elektronika a optoelektronika, elektrotechnika
- 2003 •
- D
Rok uplatnění
D - Stať ve sborníku
Research and development electronics system for control positioning mechanism include new system for collection and data processing radiation antena pattern measuring data
Building workplace for measurement of antenna systems with apertures from 0.4 to 12m and weight up to 4.5 t. Improved measuring accuracy, data processing and evaluation with comparison prewious measuring metod.. Better capacity utilization of the mea...
JA - Elektronika a optoelektronika, elektrotechnika
- 2009 •
- Gfunk
Rok uplatnění
Gfunk - Funkční vzorek
Phase Errors Correction in Near-Field Antenna Measurement
The methods of far field pattern determination from near field measurement are explained. The effect of phase errors during measurement and computation of far field pattern are analysed....
JA - Elektronika a optoelektronika, elektrotechnika
- 1999 •
- D
Rok uplatnění
D - Stať ve sborníku
- 1 - 10 out of 139 104