Specifications

L506 Hardware Design

3.16.2 applications

For convenience of antenna tuning and certification test, should increase RF connectors and the

antenna matching circuit, below is a recommended circuit:

Figure 3-27 Main antenna matching circuit diagram（MAIN_ANT）

Antenna Layout guideline

In layout design, antenna RF transmission line must ensure the characteristic impedance = 50 ohm.

The characteristic impedance depend on substrate board, line width and the distance from the ground

plane. As shown in figure 3-20 is the layout of antenna feed point of reference for clearance area.

Figure 3-28 antenna feed point