Bluetooth simulation evaluation report

Project development environment
We are moving from the age of the Internet to the age of the smart, nation Building a digital society and smart city. Next 5-10 years no matter Whether it is the consumer electronics market or the Internet of Things market, there are huge Development potential. The field of wireless communication is very diverse in the future Yu Sheng relies on the advantages of the main antenna customer platform and its own integration Strength, and strive to provide customers with market competitiveness of professional level Product solution.
Yusheng's products cover almost all wireless terminal equipment antenna applications, including automotive antennas, high-precision surveying and mapping antennas, UAV ground and satellite data navigation, high-precision positioning antennas, wireless transmission of medical equipment, consumer antennas (mobile phone antennas, PAD antennas, laptop antennas), base station/indoor distribution antennas, and more. Smart wearable antenna (smart watch, TWS headset), security home antenna and a variety of wireless data transmission and wireless control of smart device antenna.

Catalogue
Antenna design brief
Antenna stack description
Description of passive data
Electric field distribution on antenna surface
Radiation field intensity diagram
Conclusion of antenna performance evaluation

1.Rf Performance Evaluation - Brief overview of antenna design
Complete attempt Simulation coordinate system specification

Antenna coordinate pattern Antenna pattern Radiation apple diagram

Rf Performance Evaluation - Antenna Stack description
Artificial antenna diagram Antenna height view

Module	Content
Overall antenna scheme	FPC+ Antenna Shrapnel + Ground Shrapnel
Maximum height from antenna to motherboard	2.5mm
Key Device Selection	Antenna body + matching circuit
Antenna matching	Parallel 1.8PF

Rf Performance Evaluation - Passive data surface map
Description of passive data results:

Test item	Data (Freq=2.45GHz)
S11	-21.68
VSWR	1.17

1、Passive data --S11

2、 Passive data --VSWR

Description of passive data results:

Test item	Data (Freq=2.45GHz)
Impedance	42.51Ω
Smith	Normal
Synthesis	The passive parameters are normal

3、Passive data - impedance curve

4、Passive data -- Smith

Rf Performance Evaluation - List of passive data

Freq(Main Antenna Efficiency)
2400MHZ	30. 12%
2410MHZ	31.24%
2420MHZ	32.99%
2430MHZ	36.40%
2440MHZ	39.81%
2450MHZ	39.81%
2460MHZ	43.41%
2470MHZ	42.40%
2480MHZ	41.39%
2490MHZ	38. 11%
2500MHZ	34.83%

The data results show that the performance is good in the Bluetooth working band (2.4~2.5), and the radiation outside the Bluetooth frequency is low, indicating less interference to other circuits.

Rf performance evaluation - antenna surface electric field distribution
The electric field distribution shows that the electric field is mainly concentrated on the antenna surface, and a small part exists on the motherboard.

E-Field H-Field
Rf Performance Evaluation - 3D radiation field intensity map

The 3D field intensity radiation shows that the radiation direction diagram is generally balanced, and there is no obvious radiation dead Angle.

Rf Performance Evaluation - Results of antenna performance evaluation

Conclusion: At present, the passive parameters of the antenna scheme are normal, the electric field distribution has no obvious interference, the 3D radiation field intensity pattern is normal, and the antenna scheme is feasible.
(This is the simulation result, the final antenna performance needs to refer to the actual debugging results)

DIVERSITY OF EXPLORATION

OUTDOOR SCENE

However, those with sealed components, including motors, controllers, and connectors, can also be operated outdoors. Performance IC forklifts tend to be utilized in heavy-duty applications, such as brick and lumber yards, where larger capacity and performance is required to move the heavy loads.

INFRASTRUCTURE SCENARIO

TRANSPORTATION SCENARIOS

INDUSTRIAL SCENARIOS

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