Internal Antenna Selection Guide!

　　Internal Antenna Selection Guide!

　　Internal antennas can be categorized into various types: FPC/PCB/spring/ceramic/metal spring/Laser Direct Structuring (LDS). Currently, FPC and PCB antennas are the most popular choices. Springs and metal springs are often chosen for cost-conscious applications with moderate performance requirements. Ceramic patch or LDS antennas are often used for specialized applications. Conventional internal antennas are susceptible to environmental influences and require custom design or impedance matching.

　　FPC (Flexible Printed Circuit Board)

　　This design offers a high cost-effectiveness and can be matched to a variety of exterior colors after spraying. It is highly flexible and can perfectly conform to regular curved surfaces. The technology is mature and stable, with a long production cycle and strong mass delivery capabilities. This design is used in the design of antennas for broadband intelligent devices, which have high performance requirements.

　　PCB Antennas (Printed Circuit Boards)

　　The biggest difference between PCB antennas and FPC antennas is that FPC antennas are highly flexible, while PCB antennas are rigid. For structural installation, FPC antennas are preferred if bends or curved surfaces are required. For flat surfaces, PCB antennas are preferred, as PCB antennas are easier to install than FPC antennas.

　　Spring Antennas

　　Their biggest advantage is their low price, but they also have low gain and narrow bandwidth. When integrated into a product, antenna matching often requires debugging.

　　Ceramic Patch Antennas

　　They take up very little space and offer relatively good performance. Their narrow bandwidth makes multi-band implementation difficult. They effectively improve motherboard integration and reduce antenna ID restrictions.

　　They need to be incorporated into the design at the outset of motherboard design.

　　LDS Antennas

　　This utility model is used on antennas with special surface finishes, fully utilizing antenna space. It helps achieve antenna performance that is closer to the physical limits of the environment. It has specific material requirements for the housing or bracket attached to the antenna. The technology is mature, and spray-coating can be used for color matching, though the process does have a certain defect rate.

　　Metal Spring Clip Antennas

　　These offer a high cost-performance ratio, effectively reducing costs. They are also highly durable and resistant to breakage. The process is mature and stable, resulting in fast production cycles and good mass delivery. However, they have certain limitations regarding their application in the antenna area and on curved surfaces.