PNA Instruments Co.,Ltd
14th floor of Jiangdong North road NO: 301, Nanjing, China
Tel: +86-25-86200301 ,-86200340
Measurement of low εr
λ/2 short-circuit line method：
Suitable for measuring low εr can only be measured point frequency data, and often difficult to control the frequency. Sample must be made with od 7 mm, internal diameter of 3 mm, 58 mm (68 mm) long tube.