Model # | VA-91C |
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 |
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 |
Pin | Copper tin alloy |
Electrode | silver |
Ground plane | silver |
