The GGB Industries Model 67A probe sets new standards in microwave probing performance. Using low loss coaxial techniques, the Model 67A achieves an insertion loss of less than 1.1 db and a return loss of greater than 14 db through 67 GHz With its individually spring loaded, Be- ryllium-Copper tips, the Model 67A pro- vides reliable contacts, even when probing non-planar structures. This reliable low resistance contact is one of the keys to providing highly repeatable measurements. The Model 67A also provides direct view- ing of the probe tips for accurate position- ing. The Model 67A can be mounted in various adaptors for use with standard microwave probe stations. Custom mounts are avail- able. Any pitch (tip spacing) from 50 to 1250 microns may be specified. The probe can be configured with Ground-Signal-Ground (G,S,G), Ground-Signal (G,S), or Signal- Ground (S,G) tip footprints. We recom- mend smaller pitches with a G,S,G foot- print for best performance. Connection to the Model 67A is through a female 1.85 mm V connector. (2.4 mm compatible)

Flexible Tips for Flexible Probing

Each Model 67A has patented, independently spring loaded tips which make contact to the probing surface. Because the tips are flexible they minimize circuit damage, increase probe life, and most importantly, provide a reliable individually spring loaded contact for each point. With a small amount of overdrive, the point scrubs the surface to make a reliable contact free of dust, dirt, and oxide contamination. The ability to view the exact contact area eases probe positioning and allows for the precise positioning necessary for good LRM calibrations. The flexible tips even allow probing of non-planar surfaces such as ceramic substrates and laser diode structures.

Coaxial Transmission Improves Performance

The Model 67A uses a precision miniature 50 ohm coaxial cable from the probe tips to the connector interface. The coaxial design provides lower loss and less radiation than coplanar designs. The miniature coaxial cable is fabricated from flexible Beryllium- Copper which greatly improves the probeís durability.

• Durable
• DC to 67 GHz
• Insertion Loss less than 1.1 dB
• Return Loss greater than 14 dB
• Measurement repeatability -50 dB
• Indvivdually spring loaded contacts
• BeCu or Tungsten tips available
• Any pitch from 50 to 1250 microns
• Variety of Footprings
• Patented Coaxial design

mod67a.PDF