radio frequency n.无线电频率 hyper high frequency 超高频 ultra high frequency 【电】 超高频 high frequency a. 高频的 Very 维利(姓氏) very adv. 1.(置于形容词、副词和限定词前)很,非常,十分,极 2.(强调形容词最高级或置于own前)完全,十足 3.the ~ same 完全同样;完全同一 adj. 1.(特...
high frequency radio 美 英 un.高频无线电 网络高频无线电声测器 英汉 网络释义 un. 1. 高频无线电 例句 释义: 全部,高频无线电,高频无线电声测器 更多例句筛选 1. Their gear includes satellite communication systems, high-frequency radio, long-range optical equipment. 他们的装备包括卫星通信系统,高频...
Furthermore, each loop antenna in the loop antenna array is driven using one of the plurality of generated signals directly using the transmitter without a radio frequency (RF) bridge, such that an omidirectional reference signal and a spinning variable signal are transmitted from the loop antenna...
The wavelength and frequency of VHF signals has a profound impact on the hardware we build to use these frequencies. The 30 to 300MHz frequency range has been popular since radio engineers first discovered how to reliably generate and amplify VHF signals during the 1930s. The VHF range has ...
This thesis describes the radio and optical follow-up of 176 sources taken from the 15-GHz 9Cambridge Survey. The initial motivation for this was to establish the radio source population at high frequency in the expectation that a significant fraction of the sources would prove to be young obje...
The meaning of HIGH FREQUENCY is a radio frequency between very high frequency and medium frequency.
Dense radio frequency interference suppression in HF radars and the relation between the correlation functions of RFI in range and fast time domain is given; based on this, a new method for RFI suppression is ... H Zhou,B Wen,S Wu - 《IEEE Signal Processing Letters》 被引量: 0发表: 200...
High Frequencies(Radio Frequency – RF) EMF Sources: SourceFrequencyStandardComments Smartphone with Data OnRF 800MHz- 2.1GHzGSM, CDMA, UMTS, LTE (4G data)RF radiation emission every couple of seconds, in some cases all the time. depends on the OS, application installed and the way you use ...
High-frequency PCBs, often called R.F. (Radio Frequency), are a specialized category ofprinted circuit boards designed to handle signals with frequencies in the gigahertz range. These boards are critical in various applications, from wireless communication devices to radar systems and medical equipment...
Electronic tag antenna used in UHF (ultra high frequency) range and mobile phone using same 来自 Google Patents 喜欢 0 阅读量: 42 公开/公告日期: Apr 9, 2014 发明人:张莲,罗敏丽 摘要: 本发明提供了一种用于UHF频段的电子标签天线及使用该天线的手机,所述天线包括:U形辐射主体和耦合环,耦合环上设...