A 20 GHz Landing Probe Design Based on Pogo-pins

A landing probe design is proposed in this paper based on pogo-pins. Landing probes are usually used to obtain TDR and S-parameters of the device under test (DUT) so that the performance of the DUT can be evaluated. This design has two major advantages. First, it is durable. Second, it can be easily integrated into automated testing systems. The designed probe works well up to 20 GHz, which is validated by measurement.

I. Introduction

With the rapid advancement in electronic technologies, the trend of printed circuit board (PCB) and flex designs is moving toward higher and higher frequency and more and more compact form factor. This trend, though brings in various benefits for users, makes the PCB and flex designs more and more vulnerable to signal integrity (SI) [1]–[3] and electromagnetic compatibility (EMC) issues [4], [5].