Results 271 to 280 of about 208,195 (300)
Some of the next articles are maybe not open access.
MEASUREMENTS OF ANTENNA FACTOR WITH ANTENNA IMPEDANCE METHOD
2012In the fields of electromagnetic interference and electromagnetic compatibility, it is important to measure the strength of the electric field originating from electric devices. Knowledge of the antenna factor of a receiving antenna is necessary. In this paper, we discuss the antenna impedance method as a new calibration method measuring the free-space
O. Losito +8 more
openaire +1 more source
Certain Factors Affecting the Gain of Directive Antennas*
Bell System Technical Journal, 1930This paper analyzes the performance of antenna arrays as influenced by certain variables within the control of the designing engineer. It starts with an extremely simple analysis of the interfering effects produced by two sources of waves of the same amplitude.
openaire +2 more sources
Quality factor of general ideal antennas
IEEE Transactions on Antennas and Propagation, 1969An expression for the quality factor of an ideal antenna with both TE and TM modes excited is derived and applied to several special cases.
openaire +1 more source
Electronics and Communications in Japan (Part I: Communications), 2000
If the antenna factor is defined as the ratio of incident electric field strength to the output voltage with zero reflection at the load, relative measurement of the antenna factor can be carried out using a reference antenna with a known antenna factor. In this study, an antenna factor of a log dipole array antenna was measured in the 600 MHz to 2 GHz
Katsumi Fujii +3 more
openaire +1 more source
If the antenna factor is defined as the ratio of incident electric field strength to the output voltage with zero reflection at the load, relative measurement of the antenna factor can be carried out using a reference antenna with a known antenna factor. In this study, an antenna factor of a log dipole array antenna was measured in the 600 MHz to 2 GHz
Katsumi Fujii +3 more
openaire +1 more source
Antenna Clearance, an Index Factor for Electrical Size of Small Antennas
2008 International Workshop on Antenna Technology: Small Antennas and Novel Metamaterials, 2008This paper presented the definition for the antenna clearance using the ratio of input impedance variation caused by the disturbance conducting wire. The clearance was discussed for 2D plane in this paper. The 3D distributions are necessary to estimate an electrical volume of the antenna which is occupied for the stable antenna resonance.
openaire +1 more source
Cosmology with the Laser Interferometer Space Antenna
Living Reviews in Relativity, 2023Germano Nardini
exaly
Light-driven methane dry reforming with single atomic site antenna-reactor plasmonic photocatalysts
Nature Energy, 2020Linan Zhou +2 more
exaly
Light Absorption and Energy Transfer in the Antenna Complexes of Photosynthetic Organisms
Chemical Reviews, 2017Jessica M Anna +2 more
exaly

