Compact Fixed Delay Lines
Original Publication Date: 1986-Sep-01
Included in the Prior Art Database: 2005-Mar-09
This article relates generally to delay lines for electrical signals and more particularly to mechanically fixed delay lines wherein the delay line itself is a coplanar waveguide. Referring to Fig. 1, the system consists of coplanar stripline loops made of copper, nickel, or other suitable conducting metal laminated onto or otherwise manufactured on a long thin polyimide, MYLAR* or other flexible substrate. The substrate may have typical dimensions of 1.0 cm wide by .25 mm thick. The length will depend on the electrical delay desired. A delay of 10.0 ns per meter of line length is the delay for a 3.0 substrate dielectric constant. Thus a 1.0 meter delay line loop may produce a 20.0 ns signal delay.