485mhz RF module with onboard pcb antenna
A PCB antenna and radio frequency module technology, applied in the field of 485MHz radio frequency module, can solve the problems of low production cost, low gain, high profile, etc., and achieve the effect of improving uniform symmetry, increasing antenna gain, and increasing communication distance
Active Publication Date: 2016-06-08
ZKS IOT TECH CROP
View PDF4 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Now PCB printing board (printed circuit board) is used as the radiation unit structure, which uses a solid planar vibrator arm, which has the following problems: low gain, narrow bandwidth, high profile, unsatisfactory third-order intermodulation index, these problems As a result, the communication quality in the service area cannot be guaranteed
[0006] In a low-power, short-distance wireless sensor network system or active RFID system, because of the small size of the product, an antenna design with a small system, low price, and a communication distance as far as possible is required. The PCB antenna has the largest volume among the above-mentioned antenna types. Small, low production cost, but the communication distance is generally smaller than other antennas
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027] In the warehousing active RFID identification system, each warehouse is generally divided into cargo storage areas and aisles. Forklifts can pass through the aisles, and the radio frequency module installed on the forklift can communicate with a radio frequency module mounted on each item to achieve fast The function of stocktaking and looking for goods; before the present invention was implemented, the radio frequency module on the forklift in the aisle could only communicate with the radio frequency module mounted on the goods within 20m. After adopting the technical solution of the present invention, due to the antenna gain Increase, effectively increase the communication distance, the radio frequency module installed on the forklift can communicate with the module within 30m, so that the system can adapt to larger and higher warehouses.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a PCB circuit board, in particular to a 485MHz radio frequency module of on-board PCB antenna. The 485MHz radio frequency module of on-board PCB antenna comprises a PCB substrate, a radio frequency transceiving module arranged on the PCB substrate, a balanced-unbalanced circuit, an antenna, an antenna gain module, wherein the radio frequency transceiving module through the balanced-unbalanced circuit is connected with the antenna gain module which is connected with the antenna. According to the 485MHz radio frequency module of on-board PCB antenna, unit number is changed to realize different gain, and the antenna has advantages of high efficiency, stable and reliable performance, low cast, etc.
Description
technical field [0001] The invention relates to a PCB circuit board, in particular to a 485MHz radio frequency module with PCB antenna on board. Background technique [0002] The functions of PCB (Printed Circuit Board, printed circuit board) generally include: 1. Provide mechanical support for fixing and assembling various electronic components such as integrated circuits; 2. Realize wiring and electrical connections between various electronic components such as integrated circuits (signal transmission) or electrical insulation. Provide the required electrical characteristics, such as characteristic impedance, etc. [0003] An antenna is a transducer. When transmitting, it converts the high-frequency current of the transmitter into space electromagnetic waves; when receiving, it converts the electromagnetic waves intercepted from space into high-frequency currents and sends them to the receiver. Antenna design is an important part of designing a low-power, short-range wi...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/24
Inventor 林克坚蔡旭东姜惠启许广俊
Owner ZKS IOT TECH CROP