Balluff BIS U Basishandbuch Seite 33

BIS U Basic Manual
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Introduction
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Safety Distances to the Antenna
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Basic Physical Information
3.1 Physics of the Transmitting Antenna
3.2 Physics of the Transponder
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Reference Antennas and Antenna Parameters
4.1 Reference or Standard Antennas
4.2 Antenna Gain
4.3 Return Loss and Voltage Standing Wave Ratio
4.4 Dispersion Angle
4.5 Front to Back Ratio
4.6 Impedance
4.7 Polarization
4.8 Axial Ratio
4.9 Power Rating
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Antenna Cable
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Calculating the Radiated Power
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Component Properties and System Characteristics
7.1 Memory Topology of the Data Carrier
7.2 Structure of the EPC Code
7.3 Data Carrier Antenna Shapes
7.4 Directional Characteristics of the Data Carrier Dipole Antenna
7.5 Responsiveness of the Data Carrier - Response Field Intensities
7.6 Theoretical Reading Range
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Reflection, Dispersion and Adsorption of Electromagnetic Waves
8.1 Changes in the Polarizing Axis Ratio
8.2 Effect of Different Environmental Conditions
8.3 Attenuation of Electromagnetic Radiation
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Antenna and Transponder Mounting Distances
9.1 Antennas on a Processor Unit
9.2 Distances to Structures in the Surrounding Area
9.3 Mounting Transponders
Operating Several Processor Units
10.1 Frequency Hopping Method
10.2 Listen Before Talk
10.3 Creating a Transmission Plan
Measures for Improving the Operational Reliability of UHF Systems
11.1 Field Reserve and Working Distance
11.2 Using Several Antennas
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