| 摘要 |
<p>A microstrip trombone delay line (100) is used to provide a low cost true time delay device. The microstrip trombone delay line includes printed traces (102) on a fixed substrate and a printed trombone line (104) on a movable superstrate. The microstrip trombone delay line may have different dimensions to vary the characteristic impendance at either end for impedance matching purposes. A plurality of trombone lines can be used to implement a beamformer to scan a beam in multiple planes.</p> |
