9

Figure 25. Circuit Layout.

Co-Planar Waveguide

Shunt Connection for

HSMP-48XB Series

Co-Planar waveguide, with ground

on the top side of the printed

circuit board, is shown in

Figure 25. Since it eliminates the

need for via holes to ground, it

offers lower shunt parasitic

inductance and higher maximum

attenuation when compared to a

microstrip circuit.

Co-Planar Waveguide

Groundplane

Center Conductor

Groundplane

Typical Applications for HSMP-48XX Low Inductance Series

(continued)

*0.8 pF TYPICAL FOR HSMP-482B

Figure 26. Equivalent Circuit.

0.3 pF*

0.75 nH