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Model: VA-91C

UHF RFID Ceramic Antenna（double feed point） VA-91C

This antenna adopts right-handed helical circular polarization design, flat structure, with the characteristics of low reflection loss, small axial ratio and high gain.

·Retail industry ·Settlement counter ·Clothing and jewelry management
·Cabinet storage ·Other applications

FEATURES

SPECIFICATIONS

Electrical Performance

Dimension

PCB size：70*70mm , ceramic antenna size：60*60mm, overall height：10mm

Frequency range

905.0MHz-925.0MHz

Center frequency

915.0MHz

bandwidth

20MHz

VSWR

1.5max

VSWR

≤1.5

Gain

5.0DBI

Axle ratio

3．0dbmax

Polarization

Right-hand circular polarization

Impedance

50±5.0

Frequency temperature coefficient

20max

Gain when the angle is 10° with the antenna plane

－1.0DBI

Environmental Performance

High temperature characteristics

Put it in a constant temperature box at 100℃±5℃ for 24±1 hours, and test after recovering at room temperature for 1 to 2 hours

Low temperature characteristics

Put it in a low temperature box at -40℃±3℃ for 24±2 hours and then resume the test for 1 to 2 hours

Temperature cycle

Keep it at the temperature of -40℃ for 30 minutes, and then keep it at the temperature of +100℃ for 30 minutes. After a total of 6 cycles, it will be tested at room temperature for 1 to 2 hours

Vibration resistant

Test after vibration along X, Y, Z directions for 2 hours each in the condition of vibration frequency 10～55HZ and the amplitude 1.5mm

Humidity and heat resistance

Put it in a constant temperature humidity box with a temperature of 45°C±2°C and a relative humidity of 90-95% for 96 hours, and test after recovering at room temperature for 1 to 2 hours

Drop impact resistance

At a height of 30 cm, along X, Y, and Z to drop freely on the wooden floor for a total of 4 tests

Mechanical Performance

Antenna substrate

Dielectric ceramic

Copper tin alloy

Electrode

silver

Ground plane

silver

PACKING LIST

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