Zobrazeno 1 - 10
of 152
pro vyhledávání: '"Antonio Valdovinos"'
Autor:
Angela Hernandez-Solana, Paloma Garcia-Ducar, Antonio Valdovinos, Juan Ernesto Garcia, Jesus De Mingo, Pedro Luis Carro
Publikováno v:
IEEE Access, Vol 10, Pp 47854-47868 (2022)
Error vector magnitude (EVM) and out-of-band emissions are key metrics for evaluating in-band and out-band distortions introduced by all potential non-idealities in the transmitters of wireless systems. As EVM is a measure of the quality of the modul
Externí odkaz:
https://doaj.org/article/45247cc4e115441ca0832bb53e6f4999
Autor:
David Perez-Diaz-De-Cerio, Angela Hernandez-Solana, Mario Garcia-Lozano, Antonio Valdovinos Bardaji, Jose-Luis Valenzuela
Publikováno v:
IEEE Access, Vol 9, Pp 93267-93284 (2021)
Bluetooth has constantly evolved from its cradle in 1997 to the last 5.2 version in 2020. With each update and amendment, it has gained in speed, range, and versatility. One of the latest introductions was the Bluetooth Mesh Profile (BMP) making it a
Externí odkaz:
https://doaj.org/article/3717d53a52f8405aba2534ce124217eb
Publikováno v:
IEEE Access, Vol 9, Pp 96711-96721 (2021)
Reconfigurable Matching Networks (RMN) have found a wide range of applications, such as antenna impedance matching (Antenna Tuning Units -ATU-), the design of reconfigurable power amplifiers, applications in Magnetic Resonance Imaging (MRI), adjustab
Externí odkaz:
https://doaj.org/article/ce732258b31c474bac1dc23bf646c6e2
Autor:
angela Hernandez-Solana, David Perez-Diaz-De-Cerio, Mario Garcia-Lozano, Antonio Valdovinos Bardaji, Jose-Luis Valenzuela
Publikováno v:
IEEE Access, Vol 8, Pp 53784-53800 (2020)
BLE is a widely used short-range technology which has gained a relevant position inside the Internet-of-Things (IoT) paradigm development thanks to its simplicity, low-power consumption, low-cost and robustness. New enhancements over BLE have focused
Externí odkaz:
https://doaj.org/article/d430013dd1324fd290f5c2ace7023ff6
Publikováno v:
EURASIP Journal on Wireless Communications and Networking, Vol 2018, Iss 1, Pp 1-11 (2018)
Abstract Outphasing transmitters have been explored to study the trade-off between linearity and efficiency. The outphasing technique enhances efficiency by operating two amplifiers at lower output amplitudes, using two constant envelope signals. The
Externí odkaz:
https://doaj.org/article/8777d9993eca4b0b831f6a4f2b2105eb
Publikováno v:
IEEE Access, Vol 6, Pp 53620-53637 (2018)
Bluetooth low energy (BLE) is one of most promising technologies to enable the Internet-ofThings (IoT) paradigm. The BLE neighbor discovery process (NDP) based on active scanning may be the core of multiple IoT applications in which a large and varyi
Externí odkaz:
https://doaj.org/article/5c4ccfbf86254641870bd434c308b2f3
Publikováno v:
International Journal of Antennas and Propagation, Vol 2017 (2017)
User effects on portable antennas can decrease the global terminal performance, such as reducing the battery life or the wireless coverage. People presence will modify the input impedance, the far field radiation pattern, the radiation efficiency, an
Externí odkaz:
https://doaj.org/article/b9609fa711e044cbb9d7a542d212d404
Publikováno v:
Sensors, Vol 11, Iss 9, Pp 9045-9068 (2011)
Ultra wideband (UWB) radio technology is nowadays one of the most promising technologies for medium-short range communications. It has a wide range of applications including Wireless Sensor Networks (WSN) with simultaneous data transmission and locat
Externí odkaz:
https://doaj.org/article/3c35f18e473845668c14af0a62fad975
Publikováno v:
Sensors, Vol 18, Iss 3, p 922 (2018)
Timing points used in running races and other competition events are generally based on radio-frequency identification (RFID) technology. Athletes’ times are calculated via passive RFID tags and reader kits. Specifically, the reader infrastructure
Externí odkaz:
https://doaj.org/article/ac085ade17a84905a1f20e6cdd717278
Publikováno v:
Proceedings, Vol 1, Iss 8, p 790 (2017)
Timing points used in running races and other competition events are generally based on radio-frequency identification (RFID) technology. [...]
Externí odkaz:
https://doaj.org/article/5ffa122576c04d238af5ccaee02f6295