Results on a via-hole interconnect that links a coplanar waveguide (CPW) on one side of a 100 mu m-thick GaAs substrate to a microstrip line on the opposite side are presented. The measured insertion loss of a pair of back-to-back connections is 0.3 dB between 26.5 and 40 GHz. A lumped-element equivalent circuit of this via-hole interconnect has been extrapolated to W-band and used to design amplifiers at 94 GHz.<
Published in:
Microwave and Guided Wave Letters, IEEE
(Volume:3
,
Issue:
2
)
Date of Publication: Feb. 1993