Switch matrix topology for routing high frequency signals

A switch matrix for planar circuitry, the switching matrix comprising:

• a plurality of signal dividers, each signal divider configured to receive a corresponding input signal and generate a corresponding plurality of divider output signals;
• a plurality of switches, each switch configured to receive a corresponding divider output from a corresponding signal divider, such that each switch receives a corresponding plurality of divider output signals from the plurality of signal dividers, wherein each switch is configured to provide a corresponding output signal such that a plurality of output signals are generated by the plurality of switches;
• and
• a plurality of routing layers, each routing layer comprising a corresponding layer of dielectric material and a corresponding plurality of interconnect features extending within the layer of dielectric material, wherein the interconnect features of the routing layers couple the plurality of the signal dividers to the plurality of switches;
• wherein the plurality of switches are arranged in a group, with a first subset of the plurality of signal dividers on a first side of the group, and a second subset of the plurality of signal dividers on a second side of the group;
• wherein the plurality of routing layers comprise a first routing layer adjacent to a second routing layer, with no routing layers between the first and second routing layers, and wherein the switch matrix further comprises:
• a conductive material extending between the first routing layer and the second routing layer, the conductive material configured to be grounded.