Antenna Specification
| Manufacturer: | TUYA |
| Product Name: | WBR3 Antenna |
| Antenna Type: | PCB |
| Test Date: | 2019.05.20 |
| Tested by: | Long Wang |
| Approved by: | Licco |
1. General Description
| Manufacturer | Hangzhou Tuya Information Technology Co.,Ltd |
|---|---|
| Address | Room 701, Building 3, More Center, No.87 GuDun Road, Hangzhou, Zhejiang, China |
| Test Location | Room 106, Building 3, Letong Science Park, No. 500, Qiuyi Road, Binjiang District, Hangzhou |
| Product Name | WBR3 Antenna |
| Product model | WBR3 |
| Antenna Type | PCB Antenna |
| Test Items | Gain; Efficiency; Radiation Pattern |
| Test Frequency | 2400-2500MHz |
| Test Standard | ANSI/IEEE Std 149-1979 |
2. Test Configurations
2.1 Test Environment
| Temperature (°C) | 25 |
|---|---|
| Humidity (%RH) | 60 |
| Atmospheric Pressure (kPa) | 100.5 |
2.2 Test Equipment
| Test System | TEM 24 Multi-probe Microwave Chamber |
|---|---|
| Test Instrument | Agilent E5071B |
2.3 Test Principle
The test principle involves a system comprising a PC, UPS, and various testing instruments such as a Radio Communication Tester, Network Analyzer, Spectrum Analyzer, and Signal Generator. These are interconnected via an Instrument Switching Unit, Signal Amplification Unit, Transmission Switching Unit, and Power Control Unit. The system controls the antenna under test placed within a TEM chamber, utilizing Dual-Polar Probes for measurement.
3. Test Results
3.1 Gain and Efficiency
| Frequency (MHz) | Peak Gain (dBi) | Efficiency (%) |
|---|---|---|
| 2400 | 1.62 | 52.29 |
| 2410 | 1.71 | 52.17 |
| 2420 | 1.93 | 53.14 |
| 2430 | 1.98 | 54.16 |
| 2440 | 2.00 | 57.62 |
| 2450 | 2.17 | 59.64 |
| 2460 | 2.45 | 61.55 |
| 2470 | 2.38 | 60.64 |
| 2480 | 2.54 | 62.86 |
| 2490 | 2.30 | 59.85 |
| 2500 | 2.49 | 60.41 |
3.2 Radiation Pattern
Phi 0 2D Radiation Pattern: This is a polar plot illustrating the antenna's radiation pattern in the Phi 0 plane. It shows multiple lobes, resembling a butterfly shape, with signal strength indicated by distance from the center. Different colored lines represent different test frequencies from 2400 MHz to 2500 MHz.
Phi 90 2D Radiation Pattern: Similar to the Phi 0 2D plot, this polar graph displays the radiation pattern in the Phi 90 plane, also showing lobe structures across the tested frequencies.
Theta 90 2D Radiation Pattern: This polar plot presents the antenna's radiation pattern in the Theta 90 plane, displaying similar lobe characteristics across the frequency range.
2480MHz 3D Radiation Pattern: This is a three-dimensional visualization of the antenna's radiation pattern at 2480 MHz. The pattern is depicted as a complex shape with lobes, and the color scale indicates the gain values, ranging from approximately -20.20 dB to 2.54 dB.
6. Test Setup Photo
The test setup photo shows the antenna positioned inside an anechoic chamber. The chamber walls are covered with RF absorbing material. Coordinate axes (X, Y, Z) are marked in the image, indicating the orientation of the antenna during testing.
