As usual, right-angled PCB layout should be avoided in the PCB designing. Right-angled layout is not so bad for the PCB routing .In the sub-GHz applications, capacitors, reflection and EMI cannot be found out by TDR test. The high-speed PCB design engineers should focus pay more attention to the placement, power ground design, vias and so on. Although the problem of right-angled layout is not so serious, it does not mean that we apply right-angled layout freely. Every engineer should be detail-oriented.