far field rfid reader This paper presents a switchable near-field (NF) and far-field (FF) antenna designed for ultra-high frequency (UHF) radio frequency identification (RFID) applications. The antenna consists of a four-dipole array and a feeding network. $30.99
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With a low profile and a small form factor, a near-field antenna is perfect for .
This article presents a scalable ultra-highfrequency (UHF) radio frequency .
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With a low profile and a small form factor, a near-field antenna is perfect for short read range applications. Unlike far-field antennas which send out a propagating electromagnetic field, near-field antennas generate a local magnetic field. This article presents a scalable ultra-highfrequency (UHF) radio frequency identihcation (RFID) reader antenna for retail checkout counters. The antenna's simultaneous near-held and far-held operation enable effortless and reliable asset identihcation.
This paper presents a switchable near-field (NF) and far-field (FF) antenna designed for ultra-high frequency (UHF) radio frequency identification (RFID) applications. The antenna consists of a four-dipole array and a feeding network.Abstract: This paper presents a scalable ultra-high-frequency (UHF) radio frequency identification (RFID) reader antenna for retail checkout counters. The antenna's simultaneous near-field and far-field operation enable effortless and reliable asset identification.Far field antennas are ideal for applications where tags need to be read a longer distance away, typically more than 1.5 feet. Common far field applications include pallet tracking, real-time inventory management, and supply chain visibility.
A novel antenna used in the near field of a 0.92 GHz and the far field of a 2.45 GHz RFID reader system is investigated. The new antenna achieves strong magnetic field distribution over 0.92 GHz with good performance of detecting tags when applied in FCC RFID systems, as well as a good performance of circular polarization at 2.45 GHz.
Additionally, fixed RFID readers can use near-field or far-field antennas from manufacturers such as Times7 or MTI Wireless. Near-field antennas are designed for reading tags at close range, indoor, on small items or in tight spaces. Far-field antennas are designed for reading tags at longer ranges, typically up to several meters. An ultra-low profile and high-performance UHF RFID reader antenna is proposed in this letter, which can be switched between far-field (FF) and near-field (NF) operative modes. This antenna is composed of four dipoles and a reconfigurable feed network.
RFID reader antennas emit electromagnetic radiation (radio waves). If an RFID tag is outside of one full wavelength of the reader, it is said to be in the “far field.” If it is within one full wavelength away, it is said to be in the “near field.”Near-field UHF RFID reading: this expert guide explains how to avoid dead spots and optimize near-field UHF RFID tag reading. With a low profile and a small form factor, a near-field antenna is perfect for short read range applications. Unlike far-field antennas which send out a propagating electromagnetic field, near-field antennas generate a local magnetic field.
This article presents a scalable ultra-highfrequency (UHF) radio frequency identihcation (RFID) reader antenna for retail checkout counters. The antenna's simultaneous near-held and far-held operation enable effortless and reliable asset identihcation. This paper presents a switchable near-field (NF) and far-field (FF) antenna designed for ultra-high frequency (UHF) radio frequency identification (RFID) applications. The antenna consists of a four-dipole array and a feeding network.Abstract: This paper presents a scalable ultra-high-frequency (UHF) radio frequency identification (RFID) reader antenna for retail checkout counters. The antenna's simultaneous near-field and far-field operation enable effortless and reliable asset identification.
Far field antennas are ideal for applications where tags need to be read a longer distance away, typically more than 1.5 feet. Common far field applications include pallet tracking, real-time inventory management, and supply chain visibility. A novel antenna used in the near field of a 0.92 GHz and the far field of a 2.45 GHz RFID reader system is investigated. The new antenna achieves strong magnetic field distribution over 0.92 GHz with good performance of detecting tags when applied in FCC RFID systems, as well as a good performance of circular polarization at 2.45 GHz.Additionally, fixed RFID readers can use near-field or far-field antennas from manufacturers such as Times7 or MTI Wireless. Near-field antennas are designed for reading tags at close range, indoor, on small items or in tight spaces. Far-field antennas are designed for reading tags at longer ranges, typically up to several meters. An ultra-low profile and high-performance UHF RFID reader antenna is proposed in this letter, which can be switched between far-field (FF) and near-field (NF) operative modes. This antenna is composed of four dipoles and a reconfigurable feed network.
RFID reader antennas emit electromagnetic radiation (radio waves). If an RFID tag is outside of one full wavelength of the reader, it is said to be in the “far field.” If it is within one full wavelength away, it is said to be in the “near field.”
rfid antenna field
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