On Thu, Mar 7, 2024 at 10:52 AM, Brian Beezley wrote:
Maybe others can comment on their experience with various noncoaxial VNA
loads.
I have found that the impedance/match of chip resistors depends upon how it is mounted, positioning the resistive element towards or away from the ground plane, or on edge, changes its shunt capacitance and can make a big difference in tis performance. Then of course there is the way it is grounded.....
I have settled on using 3, 150¦¸ resistors arrayed radially when building a termination onto a coaxial connector.
73, Don N2VGU
Donald S Brant Jr