radio wave propagation 射频波传播,无线电波传播 radio wave propagation prediction 无线电波传播预测 radio wave absorbing material 无线电波吸收材料 radio spectrum 射电谱,射频频谱 相似单词 spectrum n. 1.光谱 2.声谱;波谱;频谱 3.范围,系列 radio n. 1.收音机,无线电设备 2.无线电广播台 3.无线电...
Methods, systems, and devices for wireless communications are described in which base stations and user equipment (UEs) may transmit using identified wireless resources in millimeter wave (mmW) radio frequency spectrum. A UE may receive an uplink grant from a base station that indicates uplink ...
HF, VHF and UHF bands include FM radio, broadcast television sound, public service radio, cellphones and GPS (global positioning system). These bands typically use "frequency modulation" (FM) to encode, or impress, an audio or data signal onto the carrier wave. In frequency modulation, the ...
radio spectrum spectrum- an ordered array of the components of an emission or wave electromagnetic spectrum- the entire frequency range of electromagnetic waves radio emission,radio radiation,radio wave- an electromagnetic wave with a wavelength between 0.5 cm to 30,000 m ...
3) radio wave 无线电波 1. Radio wave tomography technique and its application in underground radio wave probing; 无线电波层析成像技术及在矿井坑透中的应用 2. Computer emulation on the propagation of radio wave in the tunnel; 无线电波在巷道中传播的计算机仿真 3. Characteristic analysis of ...
1. A radio frequency spectrum analyzer including a cathode ray tube having a fluorescent screen, an electron gun adapted to produce a beam of electrons and project said beam at said screen, a vertical deflection means comprising a frequency dispersive electromagnetic wave conductor with its axis of...
Currently, various ranges of mm-wave frequencies are being investigated for the physical interface for 5G. Researchers have shown keen interest in, and conducted extensive research on the frequency spectrums of 28 GHz, 38 GHz, 60 GHz, 75 GHz, 82 GHz, 90 GHz and 110 GHz in realizing a ...
(gigahertz) of cycles per second. In a radio wave, thewavelengthis inversely proportional to the frequency. Radio frequencies are not visible to the human eye. As the frequency is increased beyond that of the RF spectrum, electromagnetic energy takes the form of microwaves, infrared radiation (...
This order begins with high-frequency, low-wavelength waves and ends with low-frequency, high-wavelength waves. Each type of wave within this range has its own specific set of frequencies. The electromagneticspectrumencompasses this entire scale of waves. Studying this spectrum is crucial as it al...
Bulk acoustic wave approach to wideband radio-frequency spectrum analysis experiments demonstrate channelization of RF signals in a LiNb03 device and validate our theoretical diffraction model that is based on Huygen's principle.doi... AF Sabet-Peyman,K Chau,R Dwelle - Proceedings of SPIE - The ...