Divergent filter system

Divider network

Double mode surface wave resonators

Double periodic wave filter

Drive system for electro-mechanical filter

Driver circuit

Driving point impedance derived from a transfer impedance

Dual function reflector structures for interdigital saw...

Dual mode dielectric resonator filters without iris

Dual mode filter

Dual section distributed parameter delay-line

Dual-mode filters using dielectric resonators with apertures

Dual-mode surface acoustic wave filter

Dual-mode surface-active wave filter with improved symmetry...

Dual-passband surface acoustic wave filter

Dual-processing interference cancelling system and method

Dynamic filter

Dynamic filter centering

Dynamic impedance control for input/output buffers

Dynamic phase logic gate