An exemplary interference nulling system includes an electromagnetic energy (e.g., RF) based system such as a radar system for transmitting radar signals and receiving return signals reflected from a target, and a nulling device having a surface for diffracting / blocking the transmitted signals to...
A radio-frequency (RF) device for a wireless communication device includes a grounding element, an antenna, a first DC blocking element for cutting off a direct-current (dc) signal route between a grounding terminal of the antenna and the grounding element, a capacitive sensing unit capable of...
Radio Frequency Identification Protective Liners for Clothing, Bags and Carrying Gear A carrying apparatus for carrying and shielding portable wireless transponders. A flexible, thin liner capable of blocking electromagnetic radiation is attached to the interior of a carrying apparatus such as a purse,...
(RF) shielding is a solution used for blocking radio frequency interference. It involves the construction of an enclosure to reduce the electric and magnetic transmissions from one space to another. Radio frequency shielding helps to protect electronic and computer devices from radio frequency ...
This signal shielding device is a signal shielding device designed by us as an unmanned signal shielding device. Each channel is 20-25W and the total output power is 130W. In the setting of the frequency segment, our regular frequency setting is s...
Section15.120Programblockingtechnologyrequirementsfortelevisionreceivers. Section15.121Scanningreceiversandfrequencyconvertersusedwithscanningreceivers. SubpartC-IntentionalRadiators Section15.201Equipmentauthorizationrequirement. Section15.203Antennarequirement. Section15.204Externalradiofrequencypoweramplifiersandantennamodifications. ...
A radio frequency ablation device (300) comprising a balloon blocking catheter. The radio frequency ablation device (300) comprises a double or multi-chamb... Y Dong,Z Shi,M Shen,... 被引量: 0发表: 2019年 Radio-frequency ablation device, system and method The invention provides a radio-...
A radio frequency (RF) switch device has at least two RF switch units, each RF switch unit having an output terminal and at least two input terminals. The RF switch units select one channel of RF signals from several channels of the RF s... Y Xing,Yang Wang,Yan Hong Chen,... 被引...
frequency band and a second frequency band, and a grounding terminal, for coupling the grounding element, a capacitive sensing element, for sensing an environment capacitance within a specific range through the radiating element, at least one capacitor, for blocking a DC route from the grounding ...
Radio Frequency Identification works through a small electronic device, usually a microchip, that has information stored on it. These devices are generally quite small, sometimes the size of a grain of rice, and can hold large amounts of data. While they don’t always emit electricity, some ...