PCB-Integrated AP Antenna Assembly for Automated RF Connection
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Solution Overview
Problem
The assembly process of access point (AP) devices is inefficient and error-prone due to the manual plugging of radio frequency coaxial cables between antennas and printed circuit boards (PCBs), requiring frequent flipping of the PCB and leading to potential errors and increased labor costs.
Innovation Solution
The integration of antennas directly onto the PCB, with a shielding cover and discrete device placement to reduce radiation interference and enhance heat dissipation, allowing for automated assembly and improved signal integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If manual plugging of radio frequency coaxial cable is used to connect antenna and PCB, then connection reliability is improved, but assembly efficiency deteriorates and labor costs increase
Solution Approach 1:
The patent integrates the antenna directly onto the PCB by welding the antenna wire to the PCB circuit board, merging two previously separate components (antenna and PCB) into a single integrated structure. This eliminates the need for manual plugging of radio frequency coaxial cables while maintaining connection reliability, thereby significantly improving assembly efficiency and enabling automated manufacturing.
2Adaptability or versatility
If PCB is flipped multiple times for antenna connection, then all antennas can be connected, but assembly complexity increases and error rate rises
Solution Approach 1:
The patent positions all antenna wires on the PCB in advance during the PCB manufacturing process, with wire ends extending to predetermined locations. This preliminary arrangement allows all antenna connections to be made in a single assembly operation without flipping the PCB multiple times, reducing assembly complexity and error rates while ensuring complete antenna connection.
3Area of stationary object
If devices are densely arranged on PCB, then space utilization is improved, but heat dissipation deteriorates and radiation interference increases
Solution Approach 1:
The patent strategically positions heat-generating devices and antenna elements at specific locations on the PCB where they can operate independently without interfering with each other. High-power devices are placed in areas with adequate heat dissipation pathways, while antenna elements are positioned in regions with minimal electromagnetic interference. This localized optimization maintains space utilization while ensuring proper heat dissipation and signal quality.
Data Source
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AI summary
An assembly method and an AP device provided in this application relate to the field of wireless communications. Antennas can be integrated on a PCB. This avoids assembling the antenna manually and improves efficiency. The AP device includes a lower housing, a printed circuit board (PCB) assembly, and an upper cover. The PCB assembly is located in a cavity between the upper cover and the lower housing. The PCB assembly includes a PCB, an antenna, a first device, and a second device. The antenna is fastened to an upper surface of the PCB, and the upper surface is a surface close to the upper cover. The first device is located on the upper surface, and a height of the first device is less than a first height threshold or a conductor structure proportion is less than a proportion threshold. The second device is located on a lower surface of the PCB, the lower surface is a surface close to the lower housing, and a height of the second device is greater than the first height threshold and a conductor structure proportion is greater than the proportion threshold.