Product Specification
Product Specification
| Parameter | Value | Notes |
|---|---|---|
| Frequency | 2.45GHz*1 | Antenna module on the system board |
| Ant. Port Input Pwr. (dBm) | 0 (Typ. BT class 2 output power) | |
| Tot. Rad. Pwr. (dBm) | -2.3 (Input pwr – loss pwr) | |
| Peak EIRP(dBm) | 1.3 | |
| Directivity (dBi) | 1 (all direction antenna) | |
| Efficiency (dB) | -2.3 (58.5%) | |
| Gain (dBi) | 1.3 (Peak Gain XY-plane) | |
| Maximum Power (dBm) | 1.3 (XY-plane) | |
| Minimum Power (dBm) | -4(XY-plane) | |
| Avg. Power (dBm) | -0.5(XY-plane) | |
| Max/Min Ratio (dB) | 5.3(XY-plane) | |
| Max/Avg Ratio (dB) | 1.8(XY-plane) | |
| Min/Avg Ratio (dB) | -3.5(XY-plane) | |
| Average Gain (dB) | -0.5 (Avg Gain XY-plane) |
All the technical data and information contained herein are subject to change without prior notice.
Antenna Layout
The antenna layout on the module board is depicted visually. It shows a specific golden pattern on a green background, representing the physical structure of the antenna element integrated onto the circuit board.
Antenna Gain
Gain Table at 2.44GHz:
| Unit | Plane | XY-plane | XZ-plane | YZ-plane | Efficiency | |||
|---|---|---|---|---|---|---|---|---|
| Peak | Avg. | Peak | Avg. | Peak | Avg. | |||
| dBi @2.44GHz | Module board | 1.3 | -0.5 | 1.2 | -3.8 | 1.1 | -3.0 | 58.5% |
Return Loss
The impedance matching characteristics and signal reflection are analyzed through two graphical representations:
Smith Chart
The Smith Chart illustrates the impedance matching characteristics of the antenna module across different frequencies. Key data points include:
- 2.4000000 GHz: 77.264 Ω, -22.032°, 3.0100 pF
- 2.4400000 GHz: 56.124 Ω, -6.7828°, 9.6165 pF
- 2.4800000 GHz: 43.038 Ω, 8.0241°, 524.95 pH
S44 Log Magnitude Plot
The S44 Log Magnitude plot shows the return loss in dB versus frequency. This indicates how much signal is reflected back from the antenna. Key measurements include:
- 2.4000000 GHz: -11.425 dB
- 2.4400000 GHz: -21.317 dB
- 2.4800000 GHz: -19.303 dB
Antenna Radiation Pattern Test Environment
The diagram depicts the controlled setup for measuring antenna radiation patterns. It includes:
- A Metal Shielding Room, designed to prevent external electromagnetic interference, lined with Absorbers to minimize reflections.
- A Door providing access to the shielded environment.
- A Walking channel, likely for positioning equipment or personnel.
- A Turning support mechanism used to precisely orient the Antenna Under Test (AUT).
- A Horn Antenna, potentially used as a reference or receiving antenna in the measurement setup.
- Vector Network Analyzer (VNA) Ports (Port 1 and Port 2) connected to the measurement instruments and antennas.
Antenna Radiation Patterns
3D Radiation Pattern Diagram
A 3D radiation pattern diagram provides a comprehensive visualization of the antenna's signal strength distribution in three-dimensional space. The displayed pattern exhibits a lobe-like structure, indicating specific directional characteristics of the antenna's radiation.
XY-plane
Far-field Power Distribution on the X-Y Plane. Plot Peak Gain (H+V): 1.35 dBi; Plot Average Gain (H+V): -0.48 dBi @ 2.44000 GHz.
XZ-plane
Far-field Power Distribution on the X-Z Plane. Plot Peak Gain (H+V): 1.68 dBi; Plot Average Gain (H+V): -3.83 dBi @ 2.44000 GHz.
YZ-plane
Far-field Power Distribution on the Y-Z Plane. Plot Peak Gain (H+V): 1.11 dBi; Plot Average Gain (H+V): -2.99 dBi @ 2.44000 GHz.
Manufacturer Information
Manufacturer: Zhongshan Polono Electronic Technology Co., Ltd.
Address: One of the second floor, Building A, No. 138, Tanshen South Road, Tanzhou Town, Zhongshan City, China
