High Frequency Relay Matrix
Original Publication Date: 1986-Jul-01
Included in the Prior Art Database: 2005-Mar-09
A relay matrix is described wherein multiple connections between two groups of high frequency lines are made while maintaining high bandwidth and constant impedance with low insertion loss. Input planes are arranged as vertical parallel cards and output planes are arranged as horizontal parallel cards with a constant electrical length maintained through the matrix, each of the planes using microstrip transmission lines to interconnect relays. Fig. 1 suggests a model having eight vertical input cards and eight identical horizontal output cards, each card being comprised of seven, single-pole, double-throw (SPDT) relays (encircled numbers) interconnected by microstrip transmission lines (straight lines).