A Basic Framework Analysis on the Needs of Radio Frequency Spectrum Allocation at Ultra High Frequency (UHF) Band for Digital Terrestrial TV Broadcasting in Indonesia

2010 ◽  
Author(s):  
Djamhari Sirat ◽  
Denny Setiawan ◽  
Muhammad Feriandi Mirza
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
High Frequency ◽  
Spectrum Allocation ◽  
Framework Analysis ◽  
Ultra High Frequency ◽  
Basic Framework ◽  
Radio Frequency Spectrum ◽  
Tv Broadcasting ◽  
Uhf Band

High-frequency tail of the radio-frequency spectrum in a unitary Fermi gas with particle–hole fluctuation

2018 ◽  
Vol 32 (24) ◽  
pp. 1850280
Author(s):  
Xiao-Xia Ruan ◽  
Fei Wang ◽  
Hao Gong ◽  
Zheng-Ling Wang ◽  
Hong-Shi Zong
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
High Frequency ◽  
Ultracold Atoms ◽  
Fermi Gas ◽  
Normal Phase ◽  
Matrix Approximation ◽  
Self Consistent ◽  
Radio Frequency Spectrum ◽  
Unitary Fermi Gas

The contact plays an important role in the study of ultracold atoms. We determine the contact from the high-frequency asymptotic behavior of radio-frequency spectrum for a homogeneous Fermi gas at unitarity in the normal phase. The contact is obtained within the framework of the non-self-consistent T-matrix approximation with particle–hole fluctuation.

scholarly journals Radio Frequency Identification (RFID) Tag Antenna Design at Ultra High Frequency (UHF) Band

2017 ◽  
Vol 10 (5) ◽  
pp. 1-6
Author(s):  
Wee Fwen Hoon ◽  
Yew Been Seok ◽  
Mohamed Fareq Abdul Malek ◽  
Lee Yeng Seng ◽  
Siti Zuraidah Ibrahim ◽  
...  
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Antenna Design ◽  
Rfid Tag ◽  
Ultra High Frequency ◽  
Frequency Identification ◽  
Uhf Band

A Study on the System of Radio Frequency Identification and Localization Works in UHF

2012 ◽  
Vol 588-589 ◽  
pp. 932-935 ◽  
Author(s):  
Yong Pan ◽  
Kai Hua Liu ◽  
Yi Gao ◽  
Rui Zhao
Keyword(s):  
Radio Frequency ◽  
Radio Frequency Identification ◽  
High Frequency ◽  
Test Results ◽  
Actual Measurement ◽  
Ultra High Frequency ◽  
Master Controller ◽  
Frequency Identification ◽  
Uhf Band

This paper designs a hand-held radio frequency identification and localization terminal based on ARM Cortex-M3 processor and active radio frequency tags based on 8051 processor. This terminal uses STM32F103VET6 as its master controller, these tags use STC12C2052AD as their master controller. They all use Nordic nRF905 as their radio frequency identification module. The system works in 433M/868M/915MHz ISM UHF band and can read, write and locate radio frequency tags within 50m indoors. The actual measurement of active radio frequency tags shows that this terminal is highly stable and comparable in 433M/868M/915M ultra-high frequency radio identification and localization. The test results of this system are also analyzed and presented.

Radio Frequency Support for Space Systems Based on Multi-Satellite Constellations Taking into Account the ITU-R Requirements and the WRC-19 Results

2021 ◽  
Vol 8 (4) ◽  
pp. 72-76
Author(s):  
А. А. Talanov ◽  
◽  
S. А. Fedotov ◽  
А. М. Stepanov ◽  
◽  
...  
Keyword(s):  
Radio Frequency ◽  
Frequency Spectrum ◽  
Communication Systems ◽  
Electromagnetic Compatibility ◽  
Satellite Communication ◽  
Space Systems ◽  
Satellite Constellations ◽  
Broadband Internet ◽  
State Commission ◽  
Radio Frequency Spectrum

Deployment of space systems based on multi-satellite constellations to provide broadband Internet access and communication services acutely raises the question of their radio frequency support including issues of electromagnetic compatibility (EMC) between competing space systems using multi-satellite constellations (StarLink, OneWeb, Kuiper, etc.), their EMC with traditional space systems (satellite communication systems that employ spacecraft in geostationary and non-geostationary orbits, space systems of other services), as well as regulatory issues of entering into service and staged deployment of space systems. The article formulates the problematic issues of radio frequency support of modern space systems taking into account the trends of satellite constellations deployment and proposes the solutions with consideration to international and national requirements in the regulation of radio frequency spectrum including the ITU requirements and the requirements of Russian State Commission for Radio Frequencies. The paper shows the ways to share the radio frequency spectrum to meet new requirements of the World Radiocommunication Conference 2019 (WRC-19).

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