Method for Computing Frequency Response and Radiation Pattern of Magnetized Cylindrical Ferrite Resonator Antenna

2018 ◽  
Vol 66 (9) ◽  
pp. 4415-4425 ◽  
Author(s):  
Tae-Wan Kim ◽  
Byeong-Yong Park ◽  
Woncheol Lee ◽  
Seong-Ook Park ◽  
Yang-Ki Hong
Keyword(s):  
Frequency Response ◽  
Radiation Pattern ◽  
Ferrite Resonator

scholarly journals Balanced gain for a square metaloop antenna

2019 ◽  
Vol 6 ◽  
pp. 3
Author(s):  
Hisamatsu Nakano ◽  
Ittoku Yoshino ◽  
Tomoki Abe ◽  
Junji Yamauchi
Keyword(s):  
Frequency Response ◽  
Radiation Pattern ◽  
Free Space ◽  
Loop Antenna ◽  
Circularly Polarized ◽  
Left Handed ◽  
The Difference

A square loop antenna implemented using a metamaterial line, referred to as a metaloop, is discussed. The metaloop radiates a counter circularly polarized (CP) broadside beam when the loop circumference equals one guided wavelength. The frequency response of the gain shows two different maximum values: gain G Lmax for a left-handed CP wave at frequency fGLmax and gain GRmax for a right-handed CP wave at frequency fGRmax, where GLmax is smaller than GRmax. In order to increase GLmax, while not affecting the original GRmax as much as possible (i.e. balance the gain), a parasitic natural conducting loop (paraloop), whose circumference is one free-space wavelength at fGLmax, is placed at height Hpara above the metaloop. It is found that the difference in the gains can be reduced by choosing an appropriate Hpara. The radiation pattern at fGLmax is narrowed by the paraloop, while the VSWR is not remarkably affected.

scholarly journals Акустооптическая многолучевая аксиальная дифракция в парателлурите

2022 ◽  
Vol 48 (1) ◽  
pp. 43
Author(s):  
С.Н. Антонов ◽  
Ю.Г. Резвов ◽  
В.А. Подольский ◽  
О.Д. Сивкова
Keyword(s):  
Laser Radiation ◽  
Power Consumption ◽  
Frequency Response ◽  
Radiation Pattern ◽  
Crystal Size ◽  
Radio Signal ◽  
Single Frequency ◽  
Beam Radiation ◽  
Response Optimization ◽  
Angular Scanning

To form a multi-beam radiation pattern, it is proposed to use the axial geometry of acousto-optic interaction in paratellurite. In single frequency mode, the use of this geometry for angular scanning is characterized by a dip in the frequency response. Optimization of a multifrequency radio signal makes it possible to effectively divide laser radiation into several beams, while maintaining the fundamental advantages of axial geometry: minimum crystal size and power consumption

Statistics of frequency-response estimates

1990 ◽  
Vol 137 (5) ◽  
pp. 290 ◽  
Author(s):  
J.L. Douce ◽  
L. Balmer
Keyword(s):  
Frequency Response

Estimation and Reduction of Motor Input Surge Voltage using Frequency Response Analysis

2012 ◽  
Vol 132 (8) ◽  
pp. 630-637
Author(s):  
Toru Wakimoto ◽  
Yoshimitsu Takahashi ◽  
Norihito Kimura ◽  
Yukitoshi Narumi ◽  
Naoki Hayakawa
Keyword(s):  
Frequency Response ◽  
Response Analysis ◽  
Frequency Response Analysis
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