CBox OTA1800 MINI Far-Field OTA Test System

 CBox OTA1800 OTA test system is a mini far-field OTA test system. The design of the system conforms to the CTIA test plan (version 3.5.2) specification. The sampling distance is 1.5m, and the standard large circle cutting method is adopted.CBox OTA1800 has rich test functions, supports passive test of antenna in 690mhz-6ghz ultra wide band, and can accurately measure passive parameters such as pattern (amplitude and phase), gain, efficiency, pattern bandwidth, cross polarization ratio, axial ratio, pattern pointing accuracy, phase center, etc. Support the active test of the whole system, including 2 / 3 / 4G, WiFi, Bluetooth and GNSS. The system adopts broadband single probe sampling, which is recognized as the most accurate measurement method.

1.1.1 Design features

CBox OTA1800 is equipped with shielding shell, with overall dimension of 1400 * 1400 * 2200mm. The bottom is wheel design, movable and lockable.

The shell is spliced and can be assembled on site, which can solve the handling difficulties caused by small size doors and elevators.

The shell is made of steel and aluminum, the door frame is specially designed, and the door opening size is 500mm * 1000mm.

The imported absorbing materials are laid on six sides, and special absorbing materials are used around the door to avoid the damage of absorbing cotton caused by touching.

1.1.2 Characteristic ¶meter

1.2 Sampling probe

1.2. 1 Design features:

CBox OTA1800 vertical cross polarization probe is used. The maximum diameter of phi surface is 150 mm.

1.2.2 Characteristic 

1.3 Turntable system

1.3.1 Design features

CBox OTA1800 turntable is a 2-axis turntable, and the turntable is made of low dielectric constant material conforming to the CITA specification, with the dielectric constant of about 1.1.

The bearing capacity of turntable is more than 15kg.

1.3.2 Characteristic ¶meter

1.4 Rotation control system

1.4.1 Design features

CBox OTA1800 closed-loop control servo motor is adopted, and the position control accuracy can reach 0.01 degree.

1.4.2 Characteristic 

 1.5 Power supply and host system

With professional industrial control host, emergency power supply can be selected to ensure the stability and reliability of CBox OTA1800.

CBox OTA1800 Software System

2.1 Active test system

Supporting instruments: sprint GSS series signal simulator,CSNE100 LTE network emulator, CSNE1000 LTE network emulator,Agilent8960,Anritsu8820c,R&S cmw500,cmw270, AnritsuS8860c

2.1.1 Test content